Form NPORT-P - Monthly Portfolio Investments Report on Form N-PORT (Public)
27 September 2023 - 7:55PM
Edgar (US Regulatory)
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
LONG-TERM
INVESTMENTS
-
164.2%
(99.1%
of
Total
Investments)
X
–
MUNICIPAL
BONDS
-
162
.0
%
(
97
.7
%
of
Total
Investments)
X
4,686,630,929
Alabama
-
2.3%
(1.4%
of
Total
Investments)
$
3,645
Alabama
Private
Colleges
and
University
Facilities
Authority,
Limited
Obligation
Bonds,
University
of
Mobile
Project,
Series
2015A,
6.000%,
9/01/45,
144A
9/25
at
100.00
N/R
$
3,670,916
4,710
Birmingham-Jefferson
Civic
Center
Authority,
Alabama,
Special
Tax
Bonds,
Series
2018A,
4.000%,
7/01/43
7/28
at
100.00
A-
4,569,548
7,500
Black
Belt
Energy
Gas
District,
Alabama,
Gas
Project
Revenue
Bonds,
Prepay
Morgan
Stanley
Series
2022C-1,
5.250%,
2/01/53,
(Mandatory
Put
6/01/29)
3/29
at
100.15
A1
7,877,475
30,730
Lower
Alabama
Gas
District,
Alabama,
Gas
Project
Revenue
Bonds,
Series
2016A,
5.000%,
9/01/46
No
Opt.
Call
A2
31,800,633
8,100
Mobile
Spring
Hill
College
Educational
Building
Authority,
Alabama,
Revenue
Bonds,
Spring
Hill
College
Project,
Series
2015,
5.875%,
4/15/45
4/25
at
100.00
N/R
8,025,642
The
Improvement
District
of
the
City
of
Mobile
-
McGowin
Park
Project,
Alabama,
Sales
Tax
Revenue
Bonds,
Series
2016A:
1,000
5.250%,
8/01/30
8/26
at
100.00
N/R
960,700
1,300
5.500%,
8/01/35
8/26
at
100.00
N/R
1,222,728
Tuscaloosa
County
Industrial
Development
Authority,
Alabama,
Gulf
Opportunity
Zone
Bonds,
Hunt
Refining
Project,
Refunding
Series
2019A:
2,914
4.500%,
5/01/32,
144A
5/29
at
100.00
N/R
2,722,958
4,220
5.250%,
5/01/44,
144A
5/29
at
100.00
N/R
3,823,573
1,810
UAB
Medicine
Finance
Authority,
Alabama,
Revenue
Bonds,
Series
2019B,
4.000%,
9/01/44
9/29
at
100.00
AA-
1,774,578
Total
Alabama
66,448,751
Alaska
-
0.5%
(0.3%
of
Total
Investments)
Northern
Tobacco
Securitization
Corporation,
Alaska,
Tobacco
Settlement
Asset-Backed
Bonds,
Senior
Series
2021A
Class
1:
4,490
4.000%,
6/01/41
6/31
at
100.00
A-
4,226,482
8,100
4.000%,
6/01/50
6/31
at
100.00
BBB+
7,172,307
940
Northern
Tobacco
Securitization
Corporation,
Alaska,
Tobacco
Settlement
Asset-Backed
Bonds,
Series
2021B-1
Class
2,
4.000%,
6/01/50
6/31
at
100.00
BBB-
935,620
19,045
Northern
Tobacco
Securitization
Corporation,
Alaska,
Tobacco
Settlement
Asset-Backed
Bonds,
Series
2021B-2
Class
2,
0.000%,
6/01/66
6/31
at
30.73
N/R
2,425,190
Total
Alaska
14,759,599
Arizona
-
2.4%
(1.5%
of
Total
Investments)
1,475
Arizona
Industrial
Development
Authority,
Arizona,
Education
Facility
Revenue
Bonds,
Basis
Schools,
Inc.
Projects,
Series
2017D,
5.000%,
7/01/47,
144A
7/27
at
100.00
BB
1,344,595
6,290
Arizona
Industrial
Development
Authority,
Arizona,
Education
Revenue
Bonds,
Academies
of
Math
&
Science
Projects,
Series
2019,
5.000%,
7/01/54,
144A
7/29
at
100.00
BB+
5,644,772
3,260
Arizona
Industrial
Development
Authority,
Education
Facility
Revenue
Bonds,
Caurus
Academy
Project,
Series
2018A,
6.375%,
6/01/39,
144A
6/28
at
100.00
N/R
3,391,834
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Arizona
(continued)
$
3,142
Cahava
Springs
Revitalization
District,
Cave
Creek,
Arizona,
Special
Assessment
Bonds,
Series
2017A,
7.000%,
7/01/41,
144A
2021
960240
(4)
7/27
at
100.00
N/R
$
2,419,491
4,885
Glendale
Industrial
Development
Authority,
Arizona,
Senior
Living
Revenue
Bonds,
Royal
Oaks
Royal
Oaks
-
Inspirata
Pointe
Project,
Series
2020A,
5.000%,
5/15/56
5/26
at
103.00
BBB-
4,169,103
1,350
Maricopa
County
Industrial
Development
Authority,
Arizona,
Education
Revenue
Bonds,
Legacy
Traditional
Schools
Projects,
Series
2021A,
4.000%,
7/01/56,
144A
7/31
at
100.00
BB+
979,317
Maricopa
County
Industrial
Development
Authority,
Arizona,
Education
Revenue
Bonds,
Legacy
Traditional
Schools
Projects,
Taxable
Series
2019B:
1,730
5.000%,
7/01/49,
144A
7/29
at
100.00
Ba2
1,571,757
1,975
5.000%,
7/01/54,
144A
7/29
at
100.00
Ba2
1,754,156
800
Maricopa
County
Industrial
Development
Authority,
Arizona,
Education
Revenue
Bonds,
Reid
Traditional
School
Projects,
Series
2016,
5.000%,
7/01/47
7/26
at
100.00
Baa3
803,088
Phoenix
Civic
Improvement
Corporation,
Arizona,
Revenue
Bonds,
Civic
Plaza
Expansion
Project,
Series
2005B:
6,000
5.500%,
7/01/37
-
FGIC
Insured
No
Opt.
Call
AA
7,319,700
8,755
5.500%,
7/01/39
-
FGIC
Insured
No
Opt.
Call
AA
10,653,259
Phoenix
Industrial
Development
Authority,
Arizona,
Education
Facility
Revenue
Bonds,
Basis
Schools,
Inc.
Projects,
Series
2016A:
620
5.000%,
7/01/35,
144A
7/25
at
100.00
BB
620,756
1,025
5.000%,
7/01/46,
144A
7/25
at
100.00
BB
939,915
Pima
County
Industrial
Development
Authority,
Arizona,
Education
Facility
Revenue
Bonds,
Edkey
Charter
Schools
Project,
Series
2016:
1,130
5.250%,
7/01/36
7/26
at
100.00
BB-
1,119,468
1,850
5.375%,
7/01/46
7/26
at
100.00
BB-
1,741,461
2,135
5.500%,
7/01/51
7/26
at
100.00
BB-
2,007,092
2,920
Pima
County
Industrial
Development
Authority,
Arizona,
Education
Facility
Revenue
Bonds,
Edkey
Charter
Schools
Project,
Series
2019,
5.875%,
7/01/51,
144A
7/26
at
103.00
N/R
2,894,158
885
Pima
County
Industrial
Development
Authority,
Arizona,
Education
Facility
Revenue
Bonds,
San
Tan
Montessori
School
Project,
Series
2016,
6.500%,
2/01/48,
144A
2/24
at
100.00
N/R
887,646
3,050
Pima
County
Industrial
Development
Authority,
Arizona,
Education
Facility
Revenue
Bonds,
San
Tan
Montessori
School
Project,
Series
2017,
6.750%,
2/01/50,
144A
2/28
at
100.00
N/R
3,117,344
5,000
Salt
River
Project
Agricultural
Improvement
and
Power
District,
Arizona,
Electric
System
Revenue
Bonds,
Series
2023A,
5.000%,
1/01/50
1/33
at
100.00
AA+
5,489,950
Salt
Verde
Financial
Corporation,
Arizona,
Senior
Gas
Revenue
Bonds,
Citigroup
Energy
Inc
Prepay
Contract
Obligations,
Series
2007:
6,120
5.000%,
12/01/32
No
Opt.
Call
BBB+
6,489,709
2,365
5.000%,
12/01/37
No
Opt.
Call
BBB+
2,474,453
2,000
Yavapai
County
Industrial
Development
Authority,
Arizona,
Hospital
Revenue
Bonds,
Yavapai
Regional
Medical
Center,
Series
2013A,
5.250%,
8/01/33
8/23
at
100.00
A2
2,000,940
Total
Arizona
69,833,964
Arkansas
-
0.6%
(0.3%
of
Total
Investments)
Arkansas
Development
Finance
Authority,
Tobacco
Settlement
Revenue
Bonds,
Arkansas
Cancer
Research
Center
Project,
Series
2006:
2,635
0.000%,
7/01/36
-
AMBAC
Insured
No
Opt.
Call
Aa2
1,550,566
20,480
0.000%,
7/01/46
-
AMBAC
Insured
No
Opt.
Call
Aa2
6,869,197
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Arkansas
(continued)
$
1,250
Pulaski
County,
Arkansas,
Hospital
Revenue
Bonds,
Arkansas
Children's
Hospital,
Series
2023,
4.250%,
3/01/48
3/33
at
100.00
A1
$
1,224,225
6,710
Springdale,
Arkansas,
Sales
and
Use
Tax
Revenue
Bonds,
Refunding
&
Improvement
Series
2023B,
4.125%,
8/01/50
-
BAM
Insured
,
(WI/DD)
2/30
at
100.00
AA
6,498,232
Total
Arkansas
16,142,220
California
-
12.7%
(7.6%
of
Total
Investments)
6,135
Alhambra
Unified
School
District,
Los
Angeles
County,
California,
General
Obligation
Bonds,
Capital
Appreciation
Series
2009B,
0.000%,
8/01/30
-
AGC
Insured
No
Opt.
Call
AA
4,924,319
Anaheim
Public
Financing
Authority,
California,
Lease
Revenue
Bonds,
Public
Improvement
Project,
Series
1997C:
5,795
0.000%,
9/01/35
-
AGM
Insured
No
Opt.
Call
AA
3,642,621
6,820
0.000%,
9/01/35
-
AGM
Insured,
(ETM)
No
Opt.
Call
AA (5)
4,576,084
4,100
Antelope
Valley
Healthcare
District,
California,
Revenue
Bonds,
Series
2016A,
5.000%,
3/01/41
3/26
at
100.00
BBB
4,106,478
3,875
Bakersfield
City
School
District,
Kern
County,
California,
General
Obligation
Bonds,
Election
2016
Series
2022C,
2.500%,
11/01/46
-
BAM
Insured
11/31
at
100.00
Aa3
2,788,528
1,650
California
Community
Choice
Financing
Authority,
Clean
Energy
Project
Revenue
Bonds,
Green
Series
2023C,
5.250%,
1/01/54,
(Mandatory
Put
10/01/31)
10/30
at
100.65
Baa1
1,724,415
2,325
California
Community
Housing
Agency,
California,
Essential
Housing
Revenue
Bonds,
Fountains
at
Emerald
Park,
Senior
Lien
Series
2021A-
1,
3.000%,
8/01/56,
144A
8/31
at
100.00
N/R
1,541,103
2,000
California
Community
Housing
Agency,
California,
Essential
Housing
Revenue
Bonds,
Summit
at
Sausalito
Apartments,
Series
2021A-1,
3.000%,
2/01/57,
144A
8/32
at
100.00
N/R
1,326,500
1,430
California
County
Tobacco
Securitization
Agency,
Tobacco
Settlement
Asset-Backed
Bonds,
Los
Angeles
County
Securitization
Corporation,
Series
2020A,
4.000%,
6/01/49
6/30
at
100.00
BBB+
1,326,525
310
California
County
Tobacco
Securitization
Agency,
Tobacco
Settlement
Asset-Backed
Bonds,
Los
Angeles
County
Securitization
Corporation,
Series
2020B-1,
5.000%,
6/01/49
6/30
at
100.00
BBB+
315,233
50,460
California
County
Tobacco
Securitization
Agency,
Tobacco
Settlement
Asset-Backed
Bonds,
Los
Angeles
County
Securitization
Corporation,
Series
2020B-2,
0.000%,
6/01/55
6/30
at
26.72
N/R
8,618,063
5,000
California
Educational
Facilities
Authority,
Revenue
Bonds,
Stanford
University
Series
2019V-1,
5.000%,
5/01/49
No
Opt.
Call
AAA
5,936,550
12,940
California
Educational
Facilities
Authority,
Revenue
Bonds,
Stanford
University
Series
2019V-1,
5.000%,
5/01/49,
(UB)
(6)
No
Opt.
Call
AAA
15,363,791
10,000
California
Educational
Facilities
Authority,
Revenue
Bonds,
Stanford
University
Series
2021V-2,
5.000%,
4/01/51,
(UB)
(6)
No
Opt.
Call
AAA
11,885,400
8,300
California
Educational
Facilities
Authority,
Revenue
Bonds,Stanford
University,
Refunding
Series
2014U-6,
5.000%,
5/01/45,
(UB)
(6)
No
Opt.
Call
AAA
9,830,105
6,665
California
Health
Facilities
Financing
Authority,
Revenue
Bonds,
Stanford
Hospitals
and
Clinics,
Series
2015A,
5.000%,
8/15/54,
(UB)
(6)
8/25
at
100.00
AA-
6,796,500
California
Municipal
Finance
Authority,
Charter
School
Revenue
Bonds,
Palmdale
Aerospace
Academy
Project,
Series
2016A:
3,065
5.000%,
7/01/31,
144A
7/26
at
100.00
BB
3,092,125
1,000
5.000%,
7/01/36,
144A
7/26
at
100.00
BB
1,000,220
555
5.000%,
7/01/41,
144A
7/26
at
100.00
BB
531,529
195
5.000%,
7/01/46,
144A
7/26
at
100.00
BB
181,179
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
California
(continued)
California
Municipal
Finance
Authority,
Education
Revenue
Bonds, American
Heritage
Foundation
Project,
Series
2016A:
$
260
5.000%,
6/01/36
6/26
at
100.00
BBB-
$
263,635
435
5.000%,
6/01/46
6/26
at
100.00
BBB-
432,651
3,000
California
Municipal
Finance
Authority,
Revenue
Bonds,
Simpson
University,
Series
2020A,
6.000%,
10/01/50,
144A
10/27
at
103.00
N/R
3,018,750
5,425
California
Pollution
Control
Financing
Authority,
Water
Furnishing
Revenue
Bonds,
San
Diego
County
Water
Authoriity
Desalination
Project
Pipeline,
Refunding
Series
2019,
5.000%,
11/21/45,
144A
1/29
at
100.00
Baa3
5,488,852
2,050
California
Public
Finance
Authority,
Revenue
Bonds,
Henry
Mayo
Newhall
Hospital,
Series
2017,
5.000%,
10/15/47
10/26
at
100.00
BBB-
2,054,961
735
California
School
Finance
Authority,
Charter
School
Revenue
Bonds,
Downtown
College
Prep
-
Obligated
Group,
Series
2016,
5.000%,
6/01/46,
144A
6/26
at
100.00
N/R
688,394
715
California
School
Finance
Authority,
Charter
School
Revenue
Bonds,
Rocketship
Education
?
Obligated
Group,
Series
2016A,
5.000%,
6/01/36,
144A
6/25
at
100.00
N/R
704,969
570
California
School
Finance
Authority,
Charter
School
Revenue
Bonds,
Rocketship
Education
?
Obligated
Group,
Series
2017A,
5.125%,
6/01/47,
144A
6/26
at
100.00
N/R
531,730
80
California
State,
General
Obligation
Bonds,
Series
2002,
5.000%,
10/01/32
-
NPFG
Insured
8/23
at
100.00
AA-
80,163
5
California
State,
General
Obligation
Bonds,
Series
2004,
5.000%,
4/01/31
-
AMBAC
Insured
8/23
at
100.00
AA-
5,010
9,275
California
Statewide
Communities
Development
Authority,
California,
Revenue
Bonds,
Loma
Linda
University
Medical
Center,
Series
2014A,
5.500%,
12/01/54
12/24
at
100.00
BB
9,371,275
65,430
California
Statewide
Communities
Development
Authority,
California,
Revenue
Bonds,
Loma
Linda
University
Medical
Center,
Series
2016A,
5.250%,
12/01/56,
144A
6/26
at
100.00
BB
65,458,135
7,130
California
Statewide
Communities
Development
Authority,
California,
Revenue
Bonds,
Loma
Linda
University
Medical
Center,
Series
2018A,
5.500%,
12/01/58,
144A
6/28
at
100.00
BB
7,135,205
4,000
California
Statewide
Communities
Development
Authority,
Revenue
Bonds,
Huntington
Memorial
Hospital,
Refunding
Series
2014B,
4.000%,
7/01/39,
(Pre-refunded
7/01/24)
7/24
at
100.00
N/R (5)
4,033,440
California
Statewide
Community
Development
Authority,
Revenue
Bonds,
Daughters
of
Charity
Health
System,
Series
2005A:
23
5.750%,
7/01/30
(4),(7)
9/23
at
100.00
N/R
23,133
67
5.750%,
7/01/35
(4),(7)
9/23
at
100.00
N/R
66,763
5,000
Clovis
Unified
School
District,
Fresno
County,
California,
General
Obligation
Bonds,
Series
2001A,
0.000%,
8/01/25
-
FGIC
Insured,
(ETM)
No
Opt.
Call
Baa2 (5)
4,693,550
5,330
CMFA
Special
Finance
Agency
VII,
California,
Essential
Housing
Revenue
Bonds,
Senior
Lien
Series
2021A-1,
3.000%,
8/01/56,
144A
8/31
at
100.00
N/R
3,532,937
4,000
CMFA
Special
Finance
Agency,
California,
Essential
Housing
Revenue
Bonds,
Latitude
33,
Senior
Series
2021A-1,
3.000%,
12/01/56,
144A
12/31
at
100.00
N/R
2,645,960
3,410
Coachella
Valley
Unified
School
District,
Riverside
County,
California,
General
Obligation
Bonds,
Election
2005
Series
2010C,
0.000%,
8/01/33
-
AGM
Insured
No
Opt.
Call
A1
2,397,503
14,375
Corona-Norco
Unified
School
District,
Riverside
County,
California,
General
Obligation
Bonds,
Capital
Appreciation,
Election
2006
Refunding
Series
2009C,
0.000%,
8/01/39
-
AGM
Insured
No
Opt.
Call
Aa3
7,188,219
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
California
(continued)
$
2,000
CSCDA
Community
Improvement
Authority,
California,
Essential
Housing
Revenue
Bonds,
777
Place-Pomona,
Senior
Lien
Series
2021A-1,
3.600%,
5/01/47,
144A
5/32
at
100.00
N/R
$
1,587,200
5,000
CSCDA
Community
Improvement
Authority,
California,
Essential
Housing
Revenue
Bonds,
Escondido
Portfolio,
Social
Senior
Lien
Series
2021A-2,
4.000%,
6/01/58,
144A
6/31
at
100.00
N/R
3,880,250
4,720
CSCDA
Community
Improvement
Authority,
California,
Essential
Housing
Revenue
Bonds,
Moda
at
Monrovia
Station,
Social
Series
2021A-1,
3.400%,
10/01/46,
144A
10/31
at
100.00
N/R
3,631,049
20,985
CSCDA
Community
Improvement
Authority,
California,
Essential
Housing
Revenue
Bonds,
Monterrey
Station
Apartments,
Senior
Lien
Series
2021A-1,
3.125%,
7/01/56,
144A
7/32
at
100.00
N/R
14,106,747
5,000
CSCDA
Community
Improvement
Authority,
California,
Essential
Housing
Revenue
Bonds,
Pasadena
Portfolio
Social
Bond,
Series
2021A-2,
3.000%,
12/01/56
12/31
at
100.00
N/R
3,319,300
2,475
CSCDA
Community
Improvement
Authority,
California,
Essential
Housing
Revenue
Bonds,
Vineyard
Gardens
Apartments,
Senior
Lien
Series
2021A,
3.250%,
10/01/58,
144A
4/32
at
100.00
N/R
1,652,632
12,500
CSCDA
Community
Improvement
Authority,
California,
Essential
Housing
Revenue
Bonds,
Wood
Creek
Apartments,
Mezzanine
Lien
Series
2021A-2,
4.000%,
12/01/58
6/32
at
100.00
N/R
9,419,750
El
Rancho
Unified
School
District,
Los
Angeles
County,
California,
General
Obligation
Bonds,
Election
2010
Series
2011A:
2,615
6.900%,
8/01/31
-
AGM
Insured
8/28
at
100.00
A1
3,082,614
3,600
7.050%,
8/01/34
-
AGM
Insured
8/28
at
100.00
A1
4,263,480
Foothill/Eastern
Transportation
Corridor
Agency,
California,
Toll
Road
Revenue
Bonds,
Refunding
Senior
Lien
Series
2015A:
3,960
0.000%,
1/15/34
-
AGM
Insured
No
Opt.
Call
BBB+
2,722,104
5,000
0.000%,
1/15/35
-
AGM
Insured
No
Opt.
Call
BBB+
3,299,250
Foothill/Eastern
Transportation
Corridor
Agency,
California,
Toll
Road
Revenue
Bonds,
Refunding
Series
2013A:
910
0.000%,
1/15/42
(8)
1/31
at
100.00
Baa2
1,074,783
6,610
6.000%,
1/15/49,
(Pre-refunded
1/15/24)
1/24
at
100.00
Baa2 (5)
6,696,525
4,595
Foothill/Eastern
Transportation
Corridor
Agency,
California,
Toll
Road
Revenue
Bonds,
Refunding
Term
Rate
Sub-Series
2013B-1,
3.500%,
1/15/53
7/29
at
100.00
Baa2
3,902,120
33,860
Golden
State
Tobacco
Securitization
Corporation,
California,
Tobacco
Settlement
Asset-Backed
Bonds,
Capital
Appreciation
Series
2021B-
2,
0.000%,
6/01/66
12/31
at
27.75
N/R
3,648,415
1,825
Golden
State
Tobacco
Securitization
Corporation,
California,
Tobacco
Settlement
Asset-Backed
Revenue
Bonds,
Series
2022A-1,
5.000%,
6/01/51
12/31
at
100.00
BBB+
1,901,814
Kern
Community
College
District,
California,
General
Obligation
Bonds,
Safety,
Repair
&
Improvement,
Election
2002
Series
2006:
5,600
0.000%,
11/01/24
-
AGM
Insured
No
Opt.
Call
AA
5,370,120
5,795
0.000%,
11/01/25
-
AGM
Insured
No
Opt.
Call
AA
5,380,368
1,075
Lincoln
Public
Financing
Authority,
Placer
County,
California,
Twelve
Bridges
Limited
Obligation
Revenue
Bonds,
Refunding
Series
2011A,
4.375%,
9/02/25
-
AGM
Insured
8/23
at
100.00
AA
1,076,086
7,575
Mount
San
Antonio
Community
College
District,
Los
Angeles
County,
California,
General
Obligation
Bonds,
Election
of
2008,
Series
2013A,
0.000%,
8/01/43
(8)
8/35
at
100.00
AA
6,954,835
3,310
M-S-R
Energy
Authority,
California,
Gas
Revenue
Bonds,
Citigroup
Prepay
Contracts,
Series
2009B,
6.500%,
11/01/39
No
Opt.
Call
BBB+
4,038,200
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
California
(continued)
Oceanside
Unified
School
District,
San
Diego
County,
California,
General
Obligation
Bonds,
Capital
Appreciation,
2008
Election
Series
2009A:
$
3,960
0.000%,
8/01/26
-
AGC
Insured
No
Opt.
Call
Aa3
$
3,575,365
270
0.000%,
8/01/26
-
AGC
Insured,
(ETM)
No
Opt.
Call
Aa3 (5)
246,523
605
0.000%,
8/01/26
-
AGC
Insured,
(ETM)
No
Opt.
Call
Aa3 (5)
552,395
530
0.000%,
8/01/26
-
AGC
Insured,
(ETM)
No
Opt.
Call
Aa3 (5)
483,917
540
0.000%,
8/01/26
-
AGC
Insured,
(ETM)
No
Opt.
Call
Aa3 (5)
493,047
1,715
0.000%,
8/01/28
-
AGC
Insured
No
Opt.
Call
Aa3
1,450,479
170
0.000%,
8/01/28
-
AGC
Insured,
(ETM)
No
Opt.
Call
Aa3 (5)
147,361
225
0.000%,
8/01/28
-
AGC
Insured,
(ETM)
No
Opt.
Call
Aa3 (5)
195,037
110
0.000%,
8/01/28
-
AGC
Insured,
(ETM)
No
Opt.
Call
Aa3 (5)
95,351
3,905
Orange
County,
California,
Special
Tax
Bonds,
Community
Facilities
District
2015-1
Esencia
Village,
Series
2015A,
4.250%,
8/15/38
8/25
at
100.00
N/R
3,847,245
Palo
Alto,
California,
Certificates
of
Participation,
Public
Safety
Building,
Series
2021:
2,560
2.000%,
11/01/42
11/30
at
100.00
AA+
1,791,565
1,940
2.125%,
11/01/44
11/30
at
100.00
AA+
1,338,386
3,700
Palomar
Pomerado
Health,
California,
General
Obligation
Bonds,
Capital
Appreciation,
Election
of
2004,
Series
2007A,
0.000%,
8/01/25
-
NPFG
Insured
No
Opt.
Call
BBB-
3,439,298
7,935
Palomar
Pomerado
Health,
California,
General
Obligation
Bonds,
Series
2009A,
7.000%,
8/01/38
-
AGC
Insured
8/29
at
100.00
BBB-
9,090,733
5,000
Pasadena
Area
Community
College
District,
Los
Angeles
County,
California,
General
Obligation
Bonds,
2022
Election
Series
2023A-1,
4.000%,
8/01/52
,
(WI/DD)
8/32
at
100.00
AA+
4,917,750
9,145
Pittsburg
Redevelopment
Agency,
California,
Tax
Allocation
Bonds,
Los
Medanos
Community
Development
Project,
Series
1999,
0.000%,
8/01/30
-
AMBAC
Insured
No
Opt.
Call
A+
6,980,927
San
Clemente,
California,
Special
Tax
Revenue
Bonds,
Community
Facilities
District
2006-1
Marblehead
Coastal,
Series
2015:
480
5.000%,
9/01/40
9/25
at
100.00
N/R
485,227
905
5.000%,
9/01/46
9/25
at
100.00
N/R
912,077
San
Joaquin
Hills
Transportation
Corridor
Agency,
Orange
County,
California,
Toll
Road
Revenue
Bonds,
Refunding
Senior
Lien
Series
2014A:
2,680
5.000%,
1/15/44,
(Pre-refunded
1/15/25)
1/25
at
100.00
A (5)
2,757,988
8,275
5.000%,
1/15/50,
(Pre-refunded
1/15/25)
1/25
at
100.00
A (5)
8,515,802
3,400
San
Mateo
County
Community
College
District,
California,
General
Obligation
Bonds,
Series
2006C,
0.000%,
9/01/30
-
NPFG
Insured
No
Opt.
Call
AAA
2,744,072
4,340
San
Ysidro
School
District,
San
Diego
County,
California,
General
Obligation
Bonds,
1997
Election
Series
2012G,
0.000%,
8/01/34
-
AGM
Insured
No
Opt.
Call
AA
2,853,941
5,690
San
Ysidro
School
District,
San
Diego
County,
California,
General
Obligation
Bonds,
Refunding
Series
2015,
0.000%,
8/01/42
8/25
at
41.10
A3
2,137,050
Santa
Ana
Financing
Authority,
California,
Lease
Revenue
Bonds,
Police
Administration
and
Housing
Facility,
Series
1994A:
1,265
6.250%,
7/01/24,
(ETM)
No
Opt.
Call
Baa2 (5)
1,298,358
1,265
6.250%,
7/01/24
No
Opt.
Call
Baa2
1,298,130
3,500
Saugus
Union
School
District,
Los
Angeles
County,
California,
General
Obligation
Bonds,
Series
2006,
0.000%,
8/01/23
-
FGIC
Insured
No
Opt.
Call
A+
3,500,000
605
Temecula
Public
Financing
Authority,
California,
Special
Tax
Bonds,
Community
Facilities
District
16-01,
Series
2017,
6.250%,
9/01/47,
144A
9/27
at
100.00
N/R
635,649
Total
California
366,113,818
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Colorado
-
10.5%
(6.3%
of
Total
Investments)
$
4,300
Aerotropolis
Regional
Transportation
Authority,
Colorado,
Special
Revenue
Bonds,
Series
2021,
4.375%,
12/01/52
12/26
at
103.00
N/R
$
3,390,163
850
Aviation
Station
North
Metropolitan
District
2,
Denver
County,
Colorado,
Limited
Tax
General
Obligation
Bonds,
Refunding
&
Improvement
Series
2019A,
5.000%,
12/01/39
9/24
at
103.00
N/R
808,554
Base
Village
Metropolitan
District
2,
Colorado,
General
Obligation
Bonds,
Refunding
Series
2016A:
883
5.500%,
12/01/36
8/23
at
102.00
N/R
887,079
1,175
5.750%,
12/01/46
8/23
at
102.00
N/R
1,177,973
700
Brighton
Crossing
Metropolitan
District
4,
Colorado,
General
Obligation
Bonds,
Limited
Tax
Convertible
to
Unlimited
Tax,
Series
2017A,
5.000%,
12/01/47
8/23
at
103.00
N/R
658,952
3,410
Canyons
Metropolitan
District
5,
Douglas
County,
Colorado,
Limited
Tax
General
Obligation
and
Special
Revenue
Bonds,
Refunding
&
Improvement
Series
2017A,
6.125%,
12/01/47
8/23
at
103.00
N/R
3,352,507
1,690
Canyons
Metropolitan
District
6,
Douglas
County,
Colorado,
Limited
Tax
General
Obligation
and
Special
Revenue
Bonds,
Refunding
&
Improvement
Series
2017A,
6.125%,
12/01/47
8/23
at
103.00
N/R
1,661,507
Centerra
Metropolitan
District
1,
Loveland,
Colorado,
Special
Revenue
Bonds,
Refunding
&
Improvement
Series
2017:
1,140
5.000%,
12/01/37,
144A
8/23
at
103.00
N/R
1,086,693
5,465
5.000%,
12/01/47,
144A
8/23
at
103.00
N/R
4,975,227
1,475
Centerra
Metropolitan
District
1,
Loveland,
Colorado,
Special
Revenue
Bonds,
Refunding
&
Improvement
Series
2020A,
5.000%,
12/01/51
12/25
at
103.00
N/R
1,285,905
195
Central
Platte
Valley
Metropolitan
District,
Colorado,
General
Obligation
Bonds,
Refunding
Series
2014,
5.000%,
12/01/43,
(Pre-
refunded
12/01/23)
12/23
at
100.00
BB+ (5)
195,844
1,200
Clear
Creek
Station
Metropolitan
District
2,
Adams
County,
Colorado,
Limited
Tax
General
Obligation
Refunding
&
Improvement
Series
2017A,
5.000%,
12/01/47
8/23
at
103.00
N/R
1,128,132
930
Colorado
Educational
and
Cultural
Facilities
Authority,
Charter
School
Revenue
Bonds,
Flagstaff
Academy
Project,
Refunding
Series
2016,
3.625%,
8/01/46
8/26
at
100.00
A+
764,190
1,165
Colorado
Educational
and
Cultural
Facilities
Authority,
Charter
School
Revenue
Bonds,
The
Classical
Academy
Project,
Refunding
Series
2015A,
5.000%,
12/01/38
12/24
at
100.00
A+
1,176,790
3,675
Colorado
Educational
and
Cultural
Facilities
Authority,
Charter
School
Revenue
Bonds,
Vanguard
School
Project,
Refunding
&
Improvement
Series
2016,
3.750%,
6/15/47
6/26
at
100.00
A+
3,179,647
1,750
Colorado
Educational
and
Cultural
Facilities
Authority,
Charter
School
Revenue
Bonds,
Weld
County
School
District
6
-
Frontier
Academy,
Refunding
&
Improvement
Series
2016,
3.250%,
6/01/46
6/26
at
100.00
A+
1,384,530
Colorado
Health
Facilities
Authority,
Colorado,
Health
Facilities
Revenue
Bonds,
The
Evangelical
Lutheran
Good
Samaritan
Society
Project,
Refunding
Series
2017:
2,460
5.000%,
6/01/42,
(Pre-refunded
6/01/27)
6/27
at
100.00
N/R (5)
2,644,032
23,470
5.000%,
6/01/47,
(Pre-refunded
6/01/27)
6/27
at
100.00
N/R (5)
25,225,791
5,755
Colorado
Health
Facilities
Authority,
Colorado,
Revenue
Bonds,
CommonSpirit
Health,
Series
2019A-2,
4.000%,
8/01/49
8/29
at
100.00
Baa1
5,245,107
4,900
Colorado
Health
Facilities
Authority,
Colorado,
Revenue
Bonds,
Covenant
Living
Communities
&
Services,
Series
2020A,
4.000%,
12/01/50
12/27
at
103.00
A-
3,952,830
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Colorado
(continued)
Colorado
Health
Facilities
Authority,
Colorado,
Revenue
Bonds,
Evangelical
Lutheran
Good
Samaritan
Society
Project,
Series
2013A:
$
1,410
5.000%,
6/01/32,
(Pre-refunded
6/01/25)
6/25
at
100.00
N/R (5)
$
1,456,911
2,000
5.000%,
6/01/33,
(Pre-refunded
6/01/25)
6/25
at
100.00
N/R (5)
2,066,540
5,870
5.000%,
6/01/40,
(Pre-refunded
6/01/25)
6/25
at
100.00
N/R (5)
6,065,295
6,920
5.000%,
6/01/45,
(Pre-refunded
6/01/25)
6/25
at
100.00
N/R (5)
7,150,228
2,035
Colorado
Health
Facilities
Authority,
Colorado,
Revenue
Bonds,
Frasier
Meadows
Project,
Refunding
&
Improvement
Series
2017A,
5.250%,
5/15/47
5/27
at
100.00
BBB-
1,941,817
13,610
Colorado
Housing
and
Finance
Authority,
Multifamily
Project
Bonds,
Class
I
Series
2020B,
2.350%,
10/01/43
10/29
at
100.00
AAA
9,652,620
4,105
Colorado
International
Center
Metropolitan
District
14,
Denver,
Colorado,
Limited
Tax
General
Obligation
Bonds,
Refunding
&
Improvement
Series
2018,
5.875%,
12/01/46
12/23
at
103.00
N/R
4,032,998
600
Copperleaf
Metropolitan
District
4,
Arapahoe
County,
Colorado,
Limited
Tax
General
Obligation
Bonds,
Convertible
to
Unlimited
Tax
Series
2020A,
5.000%,
12/01/49
3/25
at
103.00
N/R
540,780
1,480
Cornerstar
Metropolitan
District,
Arapahoe
County,
Colorado,
General
Obligation
Bonds,
Limited
Tax
Convertible
to
Unlimited
Tax,
Refunding
Series
2017A,
5.250%,
12/01/47
8/23
at
103.00
N/R
1,420,800
1,262
Cornerstar
Metropolitan
District,
Arapahoe
County,
Colorado,
General
Obligation
Bonds,
Limited
Tax
Convertible
to
Unlimited
Tax,
Refunding
Series
2017B,
5.250%,
12/01/47
8/23
at
103.00
N/R
1,206,813
500
Crystal
Crossing
Metropolitan
District,
Colorado,
General
Obligation
Limited
Tax
Bonds,
Refunding
Series
2016,
5.250%,
12/01/40
12/25
at
100.00
N/R
494,770
10,640
Denver
City
and
County,
Colorado,
Airport
System
Revenue
Bonds,
Subordinate
Lien
Series
2013B,
5.000%,
11/15/43
11/23
at
100.00
A+
10,663,515
445
Denver
Urban
Renewal
Authority,
Colorado,
Tax
Increment
Revenue
Bonds,
9th
and
Colorado
Urban
Redevelopement
Area,
Series
2018A,
5.250%,
12/01/39,
144A
12/23
at
103.00
N/R
449,018
2,190
Denver
Urban
Renewal
Authority,
Colorado,
Tax
Increment
Revenue
Bonds,
9th
and
Colorado
Urban
Redevelopment
Area,
Series
2018A,
5.250%,
12/01/39,
144A
12/23
at
103.00
N/R
2,209,776
11,700
E-470
Public
Highway
Authority,
Colorado,
Senior
Revenue
Bonds,
Capital
Appreciation
Series
2010A,
0.000%,
9/01/41
No
Opt.
Call
A
5,194,215
E-470
Public
Highway
Authority,
Colorado,
Senior
Revenue
Bonds,
Series
1997B:
35,995
0.000%,
9/01/23
-
NPFG
Insured
No
Opt.
Call
A2
35,884,496
6,525
0.000%,
9/01/26
-
NPFG
Insured
No
Opt.
Call
A
5,840,984
E-470
Public
Highway
Authority,
Colorado,
Senior
Revenue
Bonds,
Series
2000B:
17,030
0.000%,
9/01/25
-
NPFG
Insured
No
Opt.
Call
A
15,776,592
10,005
0.000%,
9/01/32
-
NPFG
Insured
No
Opt.
Call
A2
7,179,888
43,090
0.000%,
9/01/33
-
NPFG
Insured
No
Opt.
Call
A
29,633,855
E-470
Public
Highway
Authority,
Colorado,
Toll
Revenue
Bonds,
Series
2004A:
20,000
0.000%,
9/01/27
-
NPFG
Insured
No
Opt.
Call
A2
17,303,000
1,180
0.000%,
9/01/28
-
NPFG
Insured
No
Opt.
Call
A
986,563
7,000
0.000%,
9/01/34
-
NPFG
Insured
No
Opt.
Call
A2
4,608,590
5,575
Falcon
Area
Water
and
Wastewater
Authority
(El
Paso
County,
Colorado),
Tap
Fee
Revenue
Bonds,
Series
2022A,
6.750%,
12/01/34,
144A
9/27
at
103.00
N/R
5,578,234
590
Foothills
Metropolitan
District,
Fort
Collins,
Colorado,
Special
Revenue
Bonds,
Series
2014,
6.000%,
12/01/38
12/24
at
100.00
N/R
556,116
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Colorado
(continued)
$
500
Iron
Mountain
Metropolitan
District
2,
Windsor,
Weld
County,
Colorado,
Limited
Tax
General
Obligation
Bonds,
Refunding
&
Improvement
Series
2019A,
5.000%,
12/01/39
12/24
at
103.00
N/R
$
474,795
Lambertson
Farms
Metropolitan
District
1,
Colorado,
Revenue
Bonds,
Refunding
&
Improvement
Series
2015:
1,005
5.750%,
12/15/46
(4)
12/23
at
100.00
N/R
656,275
5,355
6.000%,
12/15/50
(4)
12/23
at
100.00
N/R
3,506,775
500
Littleton
Village
Metropolitan
District
No.
2,
Colorado,
Limited
Tax
General
Obligation
and
Special
Revenue
Bonds,
Series
2015,
5.375%,
12/01/45
8/23
at
101.00
N/R
492,520
860
Mountain
Shadows
Metropolitan
District,
Colorado,
General
Obligation
Limited
Tax
Bonds,
Refunding
Series
2016,
5.000%,
12/01/35
12/25
at
100.00
N/R
842,869
5,155
North
Range
Metropolitan
District
1,
Adams
County,
Colorado,
General
Obligation
Bonds,
Series
2016B,
3.500%,
12/01/45
12/25
at
100.00
A2
4,414,484
North
Range
Metropolitan
District
2,
Adams
County,
Colorado
,
Limited
Tax
General
Obligation
Bonds,
Refunding
Special
Revenue
&
Improvement
Series
2017A:
1,000
5.625%,
12/01/37
8/23
at
103.00
N/R
1,010,660
1,000
5.750%,
12/01/47
8/23
at
103.00
N/R
1,007,150
Painted
Prairie
Public
Improvement
Authority,
Aurora,
Colorado,
Special
Revenue
Bonds,
Series
2019:
3,380
5.000%,
12/01/39
12/24
at
103.00
N/R
3,223,641
6,900
5.000%,
12/01/49
12/24
at
103.00
N/R
6,227,595
Park
70
Metropolitan
District,
Aurora,
Colorado,
General
Obligation
Bonds,
Limited
Tax
Refunding
&
Improvement
Series
2016:
660
5.000%,
12/01/36
12/26
at
100.00
Baa3
673,873
1,060
5.000%,
12/01/46
12/26
at
100.00
Baa3
1,067,367
660
Park
Creek
Metropolitan
District,
Colorado,
Senior
Limited
Property
Tax
Supported
Revenue
Bonds,
Refunding
Series
2015A,
5.000%,
12/01/45
12/25
at
100.00
A
662,581
1,335
Peak
Metropolitan
District
1,
Colorado
Springs,
El
Paso
County,
Colorado,
Limited
Tax
General
Obligation
Bonds,
Series
2021A,
5.000%,
12/01/41,
144A
3/26
at
103.00
N/R
1,233,353
4,000
Peak
Metropolitan
District
3,
Colorado
Springs,
El
Paso
County,
Colorado,
Limited
Tax
General
Obligation
Convertible
Capital
Appreciation
Bonds,
Series
2022A-2,
8.000%,
12/01/52
12/27
at
81.40
N/R
2,222,800
2,760
Prairie
Center
Metopolitan
District
No.
3,
In
the
City
of
Brighton,
Adams
County,
Colorado,
Limited
Property
Tax
Supported
Primary
Improvements
Revenue
Bonds,
Refunding
Series
2017A,
5.000%,
12/15/41,
144A
12/26
at
100.00
N/R
2,729,419
1,500
Rampart
Range
Metropolitan
District
5,
Lone
Tree,
Douglas
County,
Colorado,
Limited
Tax
Supported
and
Special
Revenue
Bonds,
Series
2021,
4.000%,
12/01/41
10/26
at
102.00
N/R
1,171,890
Reata
South
Metropolitan
District,
Douglas
County,
Colorado,
Limited
Tax
General
Obligation
Bonds,
Refunding
Series
2018:
1,310
5.375%,
12/01/37
12/23
at
103.00
N/R
1,305,101
2,765
5.500%,
12/01/47
12/23
at
103.00
N/R
2,684,428
5,050
Regional
Transportation
District,
Colorado,
Private
Activity
Bonds,
Denver
Transit
Partners
Eagle
P3
Project,
Series
2020A,
3.000%,
7/15/37
1/31
at
100.00
Baa1
4,378,098
1,320
Riverwalk
Metropolitan
District
2,
Glendale,
Arapahoe
County,
Colorado,
Special
Revenue
Bonds,
Series
2022A,
5.000%,
12/01/52
3/27
at
103.00
N/R
1,144,004
930
SouthGlenn
Metropolitan
District,
Colorado,
Special
Revenue
Bonds,
Refunding
Series
2016,
5.000%,
12/01/46
8/23
at
102.00
N/R
864,602
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Colorado
(continued)
$
1,000
St.
Vrain
Lakes
Metropolitan
District
No.
2,
Weld
County,
Colorado,
Limited
Tax
General
Obligation
Bonds,
Series
2017A,
5.000%,
12/01/37
8/23
at
103.00
N/R
$
982,830
STC
Metropolitan
District
2,
Superior,
Boulder
County,
Colorado,
Limited
Tax
General
Obligation
and
Special
Revenue
Bonds,
Refunding
&
improvement
Series
2019A:
1,000
5.000%,
12/01/38
12/24
at
103.00
N/R
935,580
570
5.000%,
12/01/49
12/24
at
103.00
N/R
515,223
765
Sterling
Ranch
Community
Authority
Board,
Douglas
County,
Colorado,
Limited
Tax
Supported
District
2,
Refunding
&
Improvement
Senior
Series
2020A,
4.250%,
12/01/50
12/25
at
102.00
N/R
640,007
2,765
Sterling
Ranch
Metropolitan
District
1,
El
Paso
County,
Colorado,
General
Obligation
Limited
Tax
Bonds,
Series
2020,
5.125%,
12/01/50
12/25
at
103.00
N/R
2,482,583
450
The
Village
at
Dry
Creek
Metropolitan
District
No.
2,
In
the
City
of
Thornton,
Adams
County,
Colorado,
Limited
Tax
General
Obligation
and
Special
Revenue
Bonds,
Series
2019,
4.375%,
12/01/44
9/24
at
103.00
N/R
379,359
500
Transport
Metropolitan
District
3,
In
the
City
of
Aurora,
Adams
County,
Colorado,
General
Obligation
Limited
Bonds,
Convertible
Capital
Appreciation
Series
2021A-2,
5.500%,
12/01/51
3/26
at
103.00
N/R
379,335
900
Transport
Metropolitan
District
3,
In
the
City
of
Aurora,
Adams
County,
Colorado,
General
Obligation
Limited
Bonds,
Series
2021A-1,
5.000%,
12/01/51
3/26
at
103.00
N/R
728,109
3,410
Vauxmont
Metropolitan
District,
Arvada,
Colorado,
Limited
Tax
General
Obligation
and
Special
Revenue
Bonds,
Convertible
to
Unlimited
Tax
Refunding
Subordinate
Series
2020,
5.000%,
12/01/50
-
AGM
Insured
12/29
at
100.00
AA
3,611,736
8,260
West
Globeville
Metropolitan
District
1,
Denver,
Colorado,
General
Obligation
Limited
Tax
Bonds,
Series
2022,
6.750%,
12/01/52
12/29
at
103.00
N/R
7,788,271
Total
Colorado
302,513,180
Connecticut
-
5.5%
(3.3%
of
Total
Investments)
Bridgeport,
Connecticut,
General
Obligation
Bonds,
Series
2014A:
2,345
5.000%,
7/01/32
-
AGM
Insured
7/24
at
100.00
A1
2,382,098
1,600
5.000%,
7/01/34
-
AGM
Insured
7/24
at
100.00
A1
1,625,040
2,800
Bridgeport,
Connecticut,
General
Obligation
Bonds,
Series
2016D,
5.000%,
8/15/41
-
AGM
Insured
8/26
at
100.00
A1
2,902,592
Bridgeport,
Connecticut,
General
Obligation
Bonds,
Series
2017A:
1,470
5.000%,
11/01/36
11/27
at
100.00
A3
1,565,035
750
5.000%,
11/01/37
11/27
at
100.00
A3
794,303
2,175
Connecticut
Health
and
Educational
Facilities
Authority
Revenue
Bonds,
Hartford
HealthCare,
Series
2015F,
5.000%,
7/01/45
7/25
at
100.00
A
2,196,141
1,500
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Connecticut
Children?s
Medical
Center
and
Subsidiaries,
Series
2023E,
4.250%,
7/15/53
1/33
at
100.00
A3
1,450,485
15
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Connecticut
College,
Refunding
Series
2016L-1,
4.000%,
7/01/46
7/26
at
100.00
A2
13,919
1,100
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Duncaster,
Inc.,
Series
2014A,
5.000%,
8/01/44
8/24
at
100.00
BBB
1,065,251
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Healthcare
Facility
Expansion
Church
Home
of
Hartford
Inc.
Project,
Series
2016A:
590
5.000%,
9/01/46,
144A
9/26
at
100.00
BB
483,098
2,540
5.000%,
9/01/53,
144A
9/26
at
100.00
BB
2,003,171
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Connecticut
(continued)
$
3,000
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Mary
Wade
Home
Issue,
Series
2019A-1,
5.000%,
10/01/54,
144A
10/24
at
104.00
B
$
2,228,040
1,915
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Middlesex
Hospital,
Series
2015O,
5.000%,
7/01/36
7/25
at
100.00
A3
1,943,227
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Nuvance
Health
Series
2019A:
2,770
4.000%,
7/01/41
7/29
at
100.00
Baa3
2,508,096
2,000
4.000%,
7/01/49
7/29
at
100.00
Baa3
1,735,520
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Quinnipiac
University,
Refunding
Series
2015L:
6,380
4.125%,
7/01/41
7/25
at
100.00
A-
6,131,690
7,030
5.000%,
7/01/45
7/25
at
100.00
A-
7,133,130
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Quinnipiac
University,
Series
2016M:
500
5.000%,
7/01/34
7/26
at
100.00
A-
522,365
1,250
5.000%,
7/01/36
7/26
at
100.00
A-
1,295,575
6,145
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Sacred
Heart
University,
Series
2017I-1,
5.000%,
7/01/42
7/27
at
100.00
A3
6,331,869
4,025
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Stamford
Hospital,
Series
2016K,
4.000%,
7/01/46
7/26
at
100.00
BBB+
3,674,583
2,250
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
University
of
New
Haven,
Series
2018K-1,
5.000%,
7/01/38
7/28
at
100.00
BBB-
2,200,118
Connecticut
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Yale-New
Haven
Health
Issue,
Series
2014E:
2,610
5.000%,
7/01/32
7/24
at
100.00
A1
2,644,452
2,740
5.000%,
7/01/33
7/24
at
100.00
A1
2,775,949
900
5.000%,
7/01/34
7/24
at
100.00
A1
911,484
5,580
Connecticut
Health
and
Educational
Facilities
Authoroity,
Revneue
Bonds,
Connecticut
State
University
System,
Series
2013N,
5.000%,
11/01/31,
(Pre-refunded
11/01/23)
11/23
at
100.00
AA- (5)
5,602,655
Connecticut
Housing
Finance
Authority,
Housing
Mortgage
Finance
Program
Bonds,
Social
Series
2023B:
2,775
4.500%,
11/15/43
,
(WI/DD)
5/32
at
100.00
AAA
2,786,294
13,425
4.650%,
11/15/48,
(UB)
,
(WI/DD)
5/32
at
100.00
AAA
13,483,936
3,500
Connecticut
State,
General
Obligation
Bonds,
Series
2014F,
5.000%,
11/15/34
11/24
at
100.00
AA-
3,562,895
2,630
Connecticut
State,
General
Obligation
Bonds,
Series
2015F,
5.000%,
11/15/34
11/25
at
100.00
AA-
2,729,703
3,750
Connecticut
State,
General
Obligation
Bonds,
Series
2017A,
5.000%,
4/15/35
4/27
at
100.00
AA-
4,010,362
Connecticut
State,
General
Obligation
Bonds,
Series
2018A:
3,500
5.000%,
4/15/35
4/28
at
100.00
AA-
3,804,185
5,000
5.000%,
4/15/38
4/28
at
100.00
AA-
5,327,850
3,855
Connecticut
State,
Special
Tax
Obligation
Bonds,
Transportation
Infrastructure
Purposes
Series
2013A,
5.000%,
10/01/33
10/23
at
100.00
Aa3
3,862,286
1,380
Connecticut
State,
Special
Tax
Obligation
Bonds,
Transportation
Infrastructure
Purposes
Series
2015A,
5.000%,
8/01/33
8/25
at
100.00
Aa3
1,428,631
Connecticut
State,
Special
Tax
Obligation
Bonds,
Transportation
Infrastructure
Purposes
Series
2016A:
5,300
5.000%,
9/01/33
9/26
at
100.00
Aa3
5,590,599
1,075
5.000%,
9/01/34
9/26
at
100.00
Aa3
1,132,018
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Connecticut
(continued)
$
3,500
Connecticut
State,
Special
Tax
Obligation
Bonds,
Transportation
Infrastructure
Purposes,
Series
2014A,
5.000%,
9/01/33
9/24
at
100.00
Aa3
$
3,556,630
Greater
New
Haven
Water
Pollution
Control
Authority,
Connecticut,
Regional
Wastewater
System
Revenue
Bonds,
Refunding
Series
2014B:
500
5.000%,
8/15/30,
(Pre-refunded
8/15/24)
8/24
at
100.00
A1 (5)
509,340
1,000
5.000%,
8/15/31,
(Pre-refunded
8/15/24)
8/24
at
100.00
A1 (5)
1,018,680
55
Greater
New
Haven
Water
Pollution
Control
Authority,
Connecticut,
Regional
Wastewater
System
Revenue
Bonds,
Series
2005A,
5.000%,
8/15/35
-
NPFG
Insured
8/23
at
100.00
A1
55,025
225
Hamden,
Connecticut,
General
Obligation
Bonds,
Series
2016,
5.000%,
8/15/32
-
BAM
Insured
8/24
at
100.00
AA
228,546
2,315
Harbor
Point
Infrastructure
Improvement
District,
Connecticut,
Special
Obligation
Revenue
Bonds,
Harbor
Point
Project,
Refunding
Series
2017,
5.000%,
4/01/39,
144A
4/27
at
100.00
N/R
2,321,737
10,015
Hartford
County
Metropolitan
District,
Connecticut,
Clean
Water
Project
Revenue
Bonds,
Refunding
Green
Bond
Series
2014A,
5.000%,
11/01/42,
(Pre-refunded
11/01/24)
11/24
at
100.00
AA (5)
10,236,932
2,285
Hartford
County
Metropolitan
District,
Connecticut,
General
Obligation
Bonds,
Series
2018,
5.000%,
7/15/36
7/28
at
100.00
Aa3
2,477,009
1,055
Milford,
Connecticut,
General
Obligation
Bonds,
Series
2018,
4.000%,
11/01/37
11/24
at
100.00
AA+
1,059,157
1,550
New
Haven,
Connecticut,
General
Obligation
Bonds,
Refunding
Series
2016A,
5.000%,
8/15/35
-
AGM
Insured
8/26
at
100.00
BBB+
1,628,523
985
New
Haven,
Connecticut,
General
Obligation
Bonds,
Series
2014A,
5.000%,
8/01/33,
(Pre-refunded
8/01/24)
-
AGM
Insured
8/24
at
100.00
BBB+ (5)
1,001,765
New
Haven,
Connecticut,
General
Obligation
Bonds,
Series
2015:
790
5.000%,
9/01/32
-
AGM
Insured
9/25
at
100.00
BBB+
819,870
1,620
5.000%,
9/01/33
-
AGM
Insured
9/25
at
100.00
BBB+
1,680,896
500
5.000%,
9/01/35
-
AGM
Insured
9/25
at
100.00
BBB+
517,550
New
Haven,
Connecticut,
General
Obligation
Bonds,
Series
2017A:
1,045
5.000%,
8/01/35
8/27
at
100.00
BBB+
1,095,891
1,425
5.000%,
8/01/36
8/27
at
100.00
BBB+
1,486,788
900
North
Haven,
Connecticut,
General
Obligation
Bonds,
Series
2006,
5.000%,
7/15/24
No
Opt.
Call
Aa1
915,507
795
South
Central
Connecticut
Regional
Water
Authority
Water
System
Revenue
Bonds,
Thirtieth
Series
2014A,
5.000%,
8/01/44,
(Pre-
refunded
8/01/24)
8/24
at
100.00
AA- (5)
809,310
2,220
South
Central
Connecticut
Regional
Water
Authority,
Water
System
Revenue
Bonds,
Refunding
Thirty-Second
Series
2016B,
5.000%,
8/01/37
8/26
at
100.00
AA-
2,317,081
500
Stamford,
Connecticut,
Water
Pollution
Control
System
and
Facility
Revenue
Bonds,
Series
2013A,
5.250%,
8/15/43
8/23
at
100.00
Aa2
500,395
1,285
Steel
Point
Infrastructure
Improvement
District,
Connecticut,
Special
Obligation
Revenue
Bonds,
Steelpointe
Harbor
Project,
Series
2021,
4.000%,
4/01/51
4/30
at
100.00
N/R
1,055,165
1,500
Stratford,
Connecticut,
General
Obligation
Bonds,
Series
2017,
4.000%,
1/01/39
-
BAM
Insured
1/27
at
100.00
A2
1,494,930
1,005
Town
of
Hamden,
Connecticut,
General
Obligation
Bonds,
Refunding
Series
2018A,
5.000%,
8/15/30
-
BAM
Insured
8/28
at
100.00
BBB
1,085,300
2,500
University
of
Connecticut,
General
Obligation
Bonds,
Series
2013A,
5.000%,
8/15/32
8/23
at
100.00
A+
2,501,850
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Connecticut
(continued)
$
760
University
of
Connecticut,
General
Obligation
Bonds,
Series
2014A,
5.000%,
2/15/31
2/24
at
100.00
A+
$
765,974
2,250
University
of
Connecticut,
General
Obligation
Bonds,
Series
2015A,
5.000%,
3/15/31
3/26
at
100.00
A+
2,349,765
Waterbury,
Connecticut,
General
Obligation
Bonds,
Lot
A
Series
2015:
445
5.000%,
8/01/30
-
BAM
Insured
8/25
at
100.00
AA-
463,476
390
5.000%,
8/01/31
-
BAM
Insured
8/25
at
100.00
AA-
406,243
610
5.000%,
8/01/32
-
BAM
Insured
8/25
at
100.00
AA-
635,199
445
5.000%,
8/01/33
-
BAM
Insured
8/25
at
100.00
AA-
463,312
445
5.000%,
8/01/34
-
BAM
Insured
8/25
at
100.00
AA-
463,201
Total
Connecticut
157,759,692
Delaware
-
0.1%
(0.1%
of
Total
Investments)
Kent
County,
Delaware,
Student
Housing
&
Dining
Facility
Revenue
Bonds,
Collegiate
Housing
Foundation
-
Dover
LLC
Delaware
State
University
Project,
Series
2018A:
2,585
5.000%,
7/01/53
1/28
at
100.00
BB-
2,354,004
1,000
5.000%,
7/01/58
1/28
at
100.00
BB-
898,560
Total
Delaware
3,252,564
District
of
Columbia
-
3.6%
(2.2%
of
Total
Investments)
3,780
District
of
Columbia
Student
Dormitory
Revenue
Bonds,
Provident
Group
-
Howard
Properties
LLC
Issue,
Series
2013,
5.000%,
10/01/45
8/23
at
100.00
BB-
3,623,357
186,000
District
of
Columbia
Tobacco
Settlement
Corporation,
Tobacco
Settlement
Asset-Backed
Bonds,
Series
2006A,
0.000%,
6/15/46
8/23
at
24.60
N/R
43,455,180
1,500
District
of
Columbia,
Washington,
D.C.,
Revenue
Bonds,
Ingleside
at
Rock
Creek
Project,
Series
2017A,
5.000%,
7/01/42
7/24
at
103.00
N/R
1,322,370
Metropolitan
Washington
Airports
Authority,
District
of
Columbia,
Dulles
Toll
Road
Revenue
Bonds,
Dulles
Metrorail
&
Capital
Improvement
Projects,
Refunding
Second
Senior
Lien
Series
2022A:
5,030
4.000%,
10/01/52
-
AGM
Insured
10/31
at
100.00
A1
4,772,564
17,595
2.750%,
10/01/53
-
AGM
Insured
10/31
at
100.00
A1
12,447,231
22,015
3.000%,
10/01/53
-
AGM
Insured
10/31
at
100.00
A1
16,076,894
11,000
Metropolitan
Washington
Airports
Authority,
District
of
Columbia,
Dulles
Toll
Road
Revenue
Bonds,
Dulles
Metrorail
&
Capital
improvement
Projects,
Second
Senior
Lien
Series
2009C,
6.500%,
10/01/41,
(Pre-refunded
10/01/26)
-
AGC
Insured
10/26
at
100.00
A2 (5)
12,186,020
10,000
Metropolitan
Washington
Airports
Authority,
District
of
Columbia,
Dulles
Toll
Road
Revenue
Bonds,
Dulles
Metrorail
Capital
Appreciation,
Second
Senior
Lien
Series
2010B,
6.500%,
10/01/44
10/28
at
100.00
Baa1
11,299,600
Total
District
of
Columbia
105,183,216
Florida
-
4.2%
(2.5%
of
Total
Investments)
990
Bexley
Community
Development
District,
Pasco
County,
Florida,
Special
Assessment
Revenue
Bonds,
Series
2016,
4.700%,
5/01/36
5/26
at
100.00
N/R
969,715
1,000
Capital
Trust
Agency,
Florida,
Educational
Facilities
Lease
Revenue
Bonds,
Franklin
Academy
Projects,
Series
2020,
5.000%,
12/15/50,
144A
7/26
at
100.00
N/R
853,240
Capital
Trust
Agency,
Florida,
Revenue
Bonds,
Babcock
Neighborhood
School
Inc,
Series
2018:
1,290
6.100%,
8/15/38,
144A
8/28
at
100.00
N/R
1,312,278
1,045
6.200%,
8/15/48,
144A
8/28
at
100.00
N/R
1,053,935
Capital
Trust
Agency,
Florida,
Revenue
Bonds,
Babcock
Neighborhood
School
Inc,
Series
2021:
1,290
4.000%,
8/15/51,
144A
8/28
at
100.00
N/R
928,258
1,250
4.250%,
8/15/61,
144A
8/28
at
100.00
N/R
895,363
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Florida
(continued)
Capital
Trust
Agency,
Florida,
Revenue
Bonds,
Odyssey
Charter
School
Project,
Series
2017A:
$
1,065
5.375%,
7/01/37,
144A
7/27
at
100.00
Ba1
$
1,058,248
1,470
5.500%,
7/01/47,
144A
7/27
at
100.00
Ba1
1,415,081
3,788
Capital
Trust
Agency,
Florida,
Revenue
Bonds,
Provision
CARES
Proton
Therapy
Center,
Orlando
Project,
Series
2018,
7.500%,
6/01/48,
144A
(4)
6/28
at
100.00
N/R
492,444
Capital
Trust
Agency,
Florida,
Revenue
Bonds,
Renaissance
Charter
School
Project,
Series
2017A:
6,050
5.125%,
6/15/37,
144A
6/27
at
100.00
N/R
5,946,545
1,885
5.250%,
6/15/47,
144A
6/27
at
100.00
N/R
1,777,291
880
Capital
Trust
Agency,
Florida,
Revenue
Bonds,
Viera
Charter
School
Project,
Series
2017A,
5.000%,
10/15/37,
144A
10/27
at
100.00
Ba1
845,319
735
Capital
Trust
Agency,
Florida,
Revenue
Bonds,
Viera
Charter
School
Project,
Series
2019A,
5.000%,
10/15/49,
144A
10/27
at
100.00
Ba1
658,942
4,670
City
of
Miami
Beach,
Florida,
Stormwater
Revenue
Bonds,
Series
2015,
5.000%,
9/01/41
9/25
at
100.00
AA-
4,788,618
785
Cityplace
Community
Development
District,
Florida,
Special
Assessement
and Revenue
Bonds,
Refunding
Series
2012,
5.000%,
5/01/26
No
Opt.
Call
A
800,763
1,480
Collier
County
Educational
Facilities
Authority,
Florida,
Revenue
Bonds,
Hodges
University,
Refunding
Series
2013,
6.125%,
11/01/43,
(Pre-
refunded
11/01/23)
11/23
at
100.00
N/R (5)
1,489,605
Creekside
at
Twin
Creeks
Community
Development
District,
Florida,
Special
Assessment
Bonds,
Area
1
Project,
Series
2016A-1:
240
5.250%,
11/01/37
11/28
at
100.00
N/R
243,185
305
5.600%,
11/01/46
11/28
at
100.00
N/R
308,443
Downtown
Doral
Community
Development
District,
Florida,
Special
Assessment
Bonds,
Series
2015:
280
5.250%,
5/01/35
5/26
at
100.00
N/R
282,461
315
5.300%,
5/01/36
5/26
at
100.00
N/R
318,015
475
5.500%,
5/01/45
5/26
at
100.00
N/R
477,190
655
5.500%,
5/01/46
5/26
at
100.00
N/R
657,443
Florida
Development
Finance
Corporation,
Educational
Facilities
Revenue
Bonds,
Classical
Preparatory
Incorporated
Project,
Series
2017A:
255
6.000%,
6/15/37,
144A
6/26
at
100.00
N/R
257,848
665
6.125%,
6/15/46,
144A
6/26
at
100.00
N/R
667,620
415
Florida
Development
Finance
Corporation,
Educational
Facilities
Revenue
Bonds,
Classical
Preparatory
Incorporated
Project,
Series
2018A,
6.000%,
6/15/37,
144A
6/26
at
100.00
N/R
419,636
Florida
Development
Finance
Corporation,
Educational
Facilities
Revenue
Bonds,
Downtown
Doral
Charter
Upper
School
Project,
Series
2017C:
2,375
5.650%,
7/01/37,
144A
7/27
at
101.00
N/R
2,382,932
3,735
5.750%,
7/01/47,
144A
7/27
at
101.00
N/R
3,677,556
Florida
Development
Finance
Corporation,
Educational
Facilities
Revenue
Bonds,
Florida
Charter
Foundation
Inc.
Projects,
Series
2016A:
2,075
4.750%,
7/15/36,
144A
7/26
at
100.00
N/R
1,974,570
1,335
5.000%,
7/15/46,
144A
7/26
at
100.00
N/R
1,209,804
Florida
Development
Finance
Corporation,
Educational
Facilities
Revenue
Bonds,
Mater
Academy
Projects,
Series
2020A:
4,330
5.000%,
6/15/50
6/27
at
100.00
BBB
4,196,463
3,405
5.000%,
6/15/55
6/27
at
100.00
BBB
3,253,239
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Florida
(continued)
Florida
Development
Finance
Corporation,
Educational
Facilities
Revenue
Bonds,
Renaissance
Charter
School
Income
Projects,
Series
2015A:
$
3,090
6.000%,
6/15/35,
144A
6/25
at
100.00
N/R
$
3,113,021
3,450
6.125%,
6/15/46,
144A
6/25
at
100.00
N/R
3,455,382
550
Florida
Development
Finance
Corporation,
Educational
Facilities
Revenue
Bonds,
Renaissance
Charter
School,
Inc.
Projects,
Series
2014A,
6.125%,
6/15/44,
144A
6/24
at
100.00
N/R
554,834
4,380
Florida
Development
Finance
Corporation,
Educational
Facilities
Revenue
Bonds,
Southwest
Charter
Foundation
Inc
Projects,
Series
2017A,
6.125%,
6/15/47,
144A
6/27
at
100.00
N/R
4,018,431
Florida
Development
Finance
Corporation,
Educational
Facilities
Revenue
Bonds,
The
Florida
Charter
Educational
Foundation
Inc.
Projects,
Series
2016A:
1,485
6.250%,
6/15/36,
144A
6/26
at
100.00
N/R
1,525,154
4,350
6.375%,
6/15/46,
144A
6/26
at
100.00
N/R
4,432,085
5,490
Florida
Housing
Finance
Corporation,
Homeowner
Mortgage
Revenue
Bonds,
Social
Series
2021-1,
2.150%,
7/01/51
1/30
at
100.00
Aaa
3,703,719
1,435
Grand
Bay
at
Doral
Community
Development
District,
Miami-Dade
County,
Florida,
Special
Assessment
Bonds,
South
Parcel
Assessment
Area
Project,
Series
2016,
4.750%,
5/01/36
5/26
at
100.00
N/R
1,416,345
2,215
Jacksonville,
Florida,
Educational
Facilities
Revenue
Bonds,
Jacksonville
University
Project,
Series
2018B,
5.000%,
6/01/53,
144A
6/28
at
100.00
N/R
1,956,266
625
Lakewood
Ranch
Stewardship
District,
Florida,
Special
Assessment
Revenue
Bonds,
Del
Webb
Project,
Series
2017,
5.000%,
5/01/37,
144A
5/27
at
100.00
N/R
628,550
1,000
Manatee
County,
Florida,
Public
Utilities
Revenue
Bonds,
Improvement
and
Refunding
Series
2023,
4.000%,
10/01/53
4/33
at
100.00
Aa1
965,860
4,140
Martin
County
Health
Facilities
Authority,
Florida,
Hospital
Revenue
Bonds,
Martin
Memorial
Medical
Center,
Series
2015,
5.000%,
11/15/45,
(Pre-refunded
11/15/24)
11/24
at
100.00
N/R (5)
4,218,826
Miami
Dade
County
Industrial
Development
Authority,
Florida,
Educational
Facilities
Revenue
Bonds,
South
Florida
Autism
Charter
School
Project,
Series
2017:
1,080
5.875%,
7/01/37,
144A
7/27
at
100.00
N/R
1,084,979
1,920
6.000%,
7/01/47,
144A
7/27
at
100.00
N/R
1,903,027
5,965
Miami
Dade
County,
Florida,
Rickenbacker
Causeway
Revenue
Bonds,
Series
2014,
5.000%,
10/01/43
10/24
at
100.00
BBB+
6,002,579
2,130
Miami
Health
Facilities
Authority,
Florida,
Health
Facilities
Revenue
Bonds,
Miami
Jewish
Health
System
Inc.
Project,
Series
2017,
5.125%,
7/01/46
7/27
at
100.00
BB+
1,735,694
5,000
Miami-Dade
County
Expressway
Authority,
Florida,
Toll
System
Revenue
Bonds,
Series
2014A,
5.000%,
7/01/44
7/24
at
100.00
BBB+
5,008,900
4,785
Northern
Palm
Beach
County
Improvement
District,
Florida,
Water
Control
and
Improvement
Bonds,
Development
Unit
53,
Series
2015,
5.350%,
8/01/35
8/26
at
100.00
N/R
4,868,211
5,070
Orange
County
Health
Facilities
Authority,
Florida,
Hospital
Revenue
Bonds,
Orlando
Health
Obligated
Group,
Inc.,
Series
2022,
4.000%,
10/01/52
4/32
at
100.00
A2
4,732,490
Osceola
County,
Florida,
Transportation
Revenue
Bonds,
Osceola
Parkway,
Refunding
&
Improvement
Series
2019A-1:
2,890
5.000%,
10/01/49
10/29
at
100.00
BBB-
2,937,743
3,345
4.000%,
10/01/54
10/29
at
100.00
BBB-
2,919,817
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Florida
(continued)
$
2,000
Palm
Beach
County
Health
Facilities
Authority,
Florida,
Hospital
Revenue
Bonds,
Jupiter
Medical
Center,
Series
2022,
5.000%,
11/01/47
11/32
at
100.00
BBB-
$
2,007,980
825
Reunion
West
Community
Development
District,
Florida,
Special
Assessment
Bonds,
Area
3
Project,
Series
2016,
5.000%,
11/01/46
11/26
at
100.00
N/R
807,007
5,000
Sarasota
County
Public
Hospital
District,
Florida,
Hospital
Revenue
Bonds,
Sarasota
Memorial
Hospital
Project,
Series
2018,
4.000%,
7/01/48
7/28
at
100.00
A1
4,686,200
220
Seminole
County
Industrial
Development
Authority,
Florida,
Educational
Facilities
Revenue
Bonds,
Galileo
Schools
for
Gifted
Learning,
Series
2021A,
4.000%,
6/15/51,
144A
6/31
at
100.00
Ba1
163,152
Six
Mile
Creek
Community
Development
District,
Florida,
Capital
Improvement
Revenue
Bonds,
Assessment
Area
2,
Series
2016:
170
4.750%,
11/01/28
11/27
at
100.00
N/R
171,766
370
5.375%,
11/01/36
11/27
at
100.00
N/R
375,358
905
South
Fork
III
Community
Development
District,
Florida,
Special
Assessment
Revenue
Bonds,
Refunding
Series
2016,
5.375%,
5/01/37
5/27
at
100.00
N/R
917,751
185
Tampa,
Florida,
Healthcare
System
Revenue
Bonds,
Allegany
Health
System
-
St.
Joseph's
Hospital,
Series
1993,
5.125%,
12/01/23
-
NPFG
Insured,
(ETM)
8/23
at
100.00
N/R (5)
189,645
5,015
Volusia
County
Educational
Facilities
Authority,
Florida,
Revenue
Bonds,
Stetson
University
Inc.
Project,
Series
2015,
5.000%,
6/01/40
6/25
at
100.00
A-
5,098,450
Total
Florida
121,211,272
Georgia
-
3.5%
(2.1%
of
Total
Investments)
4,000
Brookhaven
Urban
Redevelopment
Agency,
Georgia,
Revenue
Bonds,
Series
2023A,
4.000%,
7/01/48
7/33
at
100.00
AAA
3,957,680
17,085
Burke
County
Development
Authority,
Georgia,
Pollution
Control
Revenue
Bonds,
Georgia
Transmission
Corporation
Vogtle
Project,
Series
2012,
2.750%,
1/01/52
5/31
at
100.00
A1
11,274,221
5,775
Burke
County
Development
Authority,
Georgia,
Pollution
Control
Revenue
Bonds,
Oglethorpe
Power
Corporation
Vogtle
Project,
Series
2017C,
4.125%,
11/01/45
2/28
at
100.00
BBB
5,207,144
11,280
Burke
County
Development
Authority,
Georgia,
Pollution
Control
Revenue
Bonds,
Oglethorpe
Power
Corporation
Vogtle
Project,
Series
2017D,
4.125%,
11/01/45
2/28
at
100.00
BBB
10,170,838
15,305
Gainesville
and
Hall
County
Hospital
Authority,
Georgia,
Revenue
Anticipation
Certificates,
Northeast
Georgia
Health
Services
Inc.,
Series
2014A,
5.500%,
8/15/54,
(Pre-refunded
2/15/25)
2/25
at
100.00
AA (5)
15,826,747
Georgia
Housing
and
Finance
Authority,
Single
Family
Mortgage
Bonds,
Series
2018A:
2,680
3.950%,
12/01/43
6/27
at
100.00
AAA
2,643,311
4,085
4.000%,
12/01/48
6/27
at
100.00
AAA
4,018,986
Georgia
Housing
and
Finance
Authority,
Single
Family
Mortgage
Bonds,
Series
2023A:
2,215
4.350%,
12/01/43,
(UB)
(6)
6/32
at
100.00
AAA
2,208,178
3,000
4.550%,
12/01/48,
(UB)
(6)
6/32
at
100.00
AAA
3,017,670
2,930
Georgia
Municipal
Electric
Authority,
Plant
Vogtle
Units
3
&
4
Project
M
Bonds,
Series
2019A,
5.000%,
1/01/56
7/28
at
100.00
BBB+
2,961,585
1,300
Macon-Bibb
County
Urban
Development
Authority,
Georgia,
Revenue
Bonds,
Academy
for
Classical
Education,
Series
2017,
5.750%,
6/15/37,
144A
6/27
at
100.00
N/R
1,314,690
10,000
Main
Street
Natural
Gas
Inc.,
Georgia,
Gas
Supply
Revenue
Bonds,
Series
2022C,
4.000%,
8/01/52,
(Mandatory
Put
11/01/27),
144A
5/27
at
100.81
BBB-
9,655,200
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Georgia
(continued)
$
4,000
Marietta
Development
Authority,
Georgia,
University
Facilities
Revenue
Bonds,
Life
University,
Inc.
Project,
Refunding
Series
2017A,
5.000%,
11/01/47,
144A
11/27
at
100.00
Ba3
$
3,595,400
10,000
Municipal
Electric
Authority
of
Georgia,
Plant
Vogtle
Units
3
&
4
Project
J
Bonds,
Series
2015A,
5.000%,
7/01/60
7/25
at
100.00
BBB+
10,008,500
5,630
Municipal
Electric
Authority
of
Georgia,
Plant
Vogtle
Units
3
&
4
Project
J
Bonds,
Series
2019A,
5.000%,
1/01/49
7/28
at
100.00
BBB+
5,706,343
10,090
Private
Colleges
and
Universities
Authority,
Georgia,
Revenue
Bonds,
Mercer
University,
Series
2015,
5.000%,
10/01/40
10/25
at
100.00
A3
10,216,327
Total
Georgia
101,782,820
Guam
-
0.3%
(0.2%
of
Total
Investments)
1,500
Government
of
Guam,
Business
Privilege
Tax
Bonds,
Refunding
Series
2015D,
5.000%,
11/15/39
11/25
at
100.00
BB
1,493,835
Guam
Government
Waterworks
Authority,
Water
and
Wastewater
System
Revenue
Bonds,
Refunding
Series
2017:
1,335
5.000%,
7/01/36
7/27
at
100.00
Baa2
1,372,247
1,665
5.000%,
7/01/40
7/27
at
100.00
Baa2
1,691,856
4,770
Guam
Government
Waterworks
Authority,
Water
and
Wastewater
System
Revenue
Bonds,
Series
2020A,
5.000%,
1/01/50
7/30
at
100.00
Baa2
4,846,606
Total
Guam
9,404,544
Hawaii
-
0.1%
(0.1%
of
Total
Investments)
1,500
Hawaii
Department
of
Budget
and
Finance,
Special
Purpose
Revenue
Bonds,
Chaminade
University
of
Honolulu,
Series
2015A,
5.000%,
1/01/45,
144A
1/25
at
100.00
Ba3
1,283,370
170
Hawaii
Department
of
Budget
and
Finance,
Special
Purpose
Revenue
Bonds,
Hawaii
Pacific
University,
Series
2013A,
6.875%,
7/01/43,
144A
8/23
at
100.00
BB
170,111
1,395
Hawaii
Department
of
Budget
and
Finance,
Special
Purpose
Revenue
Bonds,
Queens
Health
Systems,
Series
2015A,
4.000%,
7/01/40
7/25
at
100.00
AA-
1,350,862
Total
Hawaii
2,804,343
Idaho
-
1.0%
(0.6%
of
Total
Investments)
Idaho
Health
Facilities
Authority,
Revenue
Bonds,
Kootenai
Health
Project,
Series
2014:
3,300
4.375%,
7/01/34
7/24
at
100.00
A
3,321,681
12,495
4.750%,
7/01/44
7/24
at
100.00
A
12,219,235
1,250
Idaho
Health
Facilities
Authority,
Revenue
Bonds,
Madison
Memorial
Hospital
Project,
Refunding
Series
2016,
5.000%,
9/01/37
9/26
at
100.00
BB+
1,252,850
Idaho
Housing
and
Finance
Association,
Nonprofit
Facilities
Revenue
Bonds,
Gem
Prep
Meridian
North
LLC,
Series
2020A:
500
5.000%,
7/01/40,
144A
7/25
at
100.00
N/R
418,275
1,415
5.250%,
7/01/55,
144A
7/25
at
100.00
N/R
1,121,402
12,555
Spring
Valley
Community
Infrastructure
District
1,
Eagle,
Idaho,
Special
Assessment
Bonds,
Series
2021,
3.750%,
9/01/51,
144A
12/26
at
103.00
N/R
9,793,653
Total
Idaho
28,127,096
Illinois
-
24.3%
(14.7%
of
Total
Investments)
67,135
Chicago
Board
of
Education,
Illinois,
Dedicated
Capital
Improvement
Tax
Revenue
Bonds,
Series
2016,
6.000%,
4/01/46
4/27
at
100.00
A
70,792,515
1,000
Chicago
Board
of
Education,
Illinois,
Dedicated
Capital
Improvement
Tax
Revenue
Bonds,
Series
2017,
5.000%,
4/01/46
4/27
at
100.00
A
1,012,760
1,110
Chicago
Board
of
Education,
Illinois,
Dedicated
Capital
Improvement
Tax
Revenue
Bonds,
Series
2023,
5.750%,
4/01/48
4/33
at
100.00
A
1,219,502
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Illinois
(continued)
$
5,245
Chicago
Board
of
Education,
Illinois,
General
Obligation
Bonds,
Dedicated
Revenues
Series
2012A,
5.000%,
12/01/42
8/23
at
100.00
Ba2
$
5,167,951
8,400
Chicago
Board
of
Education,
Illinois,
General
Obligation
Bonds,
Dedicated
Revenues,
Refunding
Series
2017B,
7.000%,
12/01/42,
144A
12/27
at
100.00
BB+
9,092,496
Chicago
Board
of
Education,
Illinois,
General
Obligation
Bonds,
Dedicated
Revenues,
Refunding
Series
2017H:
5,835
5.000%,
12/01/36
12/27
at
100.00
BB+
5,887,107
4,940
5.000%,
12/01/46
12/27
at
100.00
BB+
4,852,710
6,055
Chicago
Board
of
Education,
Illinois,
General
Obligation
Bonds,
Dedicated
Revenues,
Refunding
Series
2018D,
5.000%,
12/01/46
12/28
at
100.00
BB+
5,948,008
38,905
Chicago
Board
of
Education,
Illinois,
General
Obligation
Bonds,
Dedicated
Revenues,
Series
2016A,
7.000%,
12/01/44
12/25
at
100.00
BB+
40,783,333
14,805
Chicago
Board
of
Education,
Illinois,
General
Obligation
Bonds,
Dedicated
Revenues,
Series
2016B,
6.500%,
12/01/46
12/26
at
100.00
BB+
15,489,139
19,585
Chicago
Board
of
Education,
Illinois,
General
Obligation
Bonds,
Dedicated
Revenues,
Series
2017A,
7.000%,
12/01/46,
144A
12/27
at
100.00
BB+
21,119,681
1,410
Chicago
Board
of
Education,
Illinois,
Unlimited
Tax
General
Obligation
Bonds,
Dedicated
Tax
Revenues,
Series
1998B-1,
0.000%,
12/01/30
-
NPFG
Insured
No
Opt.
Call
BB+
1,038,592
Chicago
Transit
Authority,
Illinois,
Sales
Tax
Receipts
Revenue
Bonds,
Second
Lien
Series
2020A:
1,405
4.000%,
12/01/50
12/29
at
100.00
A+
1,288,146
2,000
5.000%,
12/01/55
12/29
at
100.00
A+
2,063,280
12,215
Chicago
Transit
Authority,
Illinois,
Sales
Tax
Receipts
Revenue
Bonds,
Series
2014,
5.250%,
12/01/49
12/24
at
100.00
AA
12,371,108
Chicago,
Illinois,
General
Airport
Revenue
Bonds,
O'Hare
International
Airport,
Refunding
Senior
Lien
Series
2022B:
2,565
4.500%,
1/01/56
1/31
at
100.00
A+
2,577,697
5,000
5.250%,
1/01/56
1/31
at
100.00
A+
5,413,900
1,355
Chicago,
Illinois,
General
Obligation
Bonds,
Chicago
Works
Series
2023A,
5.500%,
1/01/39
1/32
at
100.00
Baa3
1,485,758
32,670
Chicago,
Illinois,
General
Obligation
Bonds,
City
Colleges,
Series
1999,
0.000%,
1/01/32
-
FGIC
Insured
No
Opt.
Call
Baa2
22,958,189
2,500
Chicago,
Illinois,
General
Obligation
Bonds,
Project
&
Refunding
Series
2014A,
5.250%,
1/01/33
1/24
at
100.00
Baa3
2,519,425
17,605
Chicago,
Illinois,
General
Obligation
Bonds,
Project
&
Refunding
Series
2017A,
6.000%,
1/01/38
1/27
at
100.00
BBB
18,700,031
2,605
Chicago,
Illinois,
General
Obligation
Bonds,
Refunding
Series
2016C,
5.000%,
1/01/38
1/26
at
100.00
BBB
2,630,347
3,000
Chicago,
Illinois,
Wastewater
Transmission
Revenue
Bonds,
Second
Lien
Series
2008C,
5.000%,
1/01/39
1/25
at
100.00
A
3,026,880
10,000
Cook
County
Community
College
District
508,
Illinois,
General
Obligation
Bonds,
Chicago
City
Colleges,
Series
2013,
5.250%,
12/01/43
12/23
at
100.00
BBB
10,006,200
Illinois
Educational
Facilities
Authority,
Revenue
Bonds,
Field
Museum
of
Natural
History,
Series
2002.RMKT:
2,500
4.450%,
11/01/36
11/25
at
102.00
A2
2,562,025
3,400
5.500%,
11/01/36
11/23
at
100.00
A
3,418,190
Illinois
Finance
Authority,
Charter
School
Revenue
Bonds,
Intrinsic
Charter
Schools
Belmont
School
Project,
Series
2015A:
1,700
5.750%,
12/01/35,
144A
12/25
at
100.00
N/R
1,736,958
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Illinois
(continued)
$
115
6.000%,
12/01/45,
144A
12/25
at
100.00
N/R
$
117,617
Illinois
Finance
Authority,
Health
Services
Facility
Lease
Revenue
Bonds,
Provident
Group
-
UIC
Surgery
Center,
LLC
-
University
of
Illinois
Health
Services
Facility
Project,
Series
2020:
3,835
4.000%,
10/01/50
10/30
at
100.00
BBB+
3,359,076
5,190
4.000%,
10/01/55
10/30
at
100.00
BBB+
4,459,508
Illinois
Finance
Authority,
Revenue
Bonds,
Ascension
Health/
fkaPresence
Health
Network,
Series
2016C:
1,755
4.000%,
2/15/41,
(Pre-refunded
2/15/27)
2/27
at
100.00
N/R (5)
1,809,668
37,075
4.000%,
2/15/41
2/27
at
100.00
Aa2
36,061,741
80
4.000%,
2/15/41,
(Pre-refunded
2/15/27)
2/27
at
100.00
N/R (5)
82,492
Illinois
Finance
Authority,
Revenue
Bonds,
Centegra
Health
System,
Series
2014A:
1,485
5.000%,
9/01/34,
(Pre-refunded
9/01/24)
9/24
at
100.00
N/R (5)
1,510,883
19,025
5.000%,
9/01/42,
(Pre-refunded
9/01/24)
9/24
at
100.00
N/R (5)
19,356,606
500
Illinois
Finance
Authority,
Revenue
Bonds,
DePaul
College
Prep
Foundation,
Series
2023A,
5.625%,
8/01/53,
144A
8/33
at
100.00
BB+
506,665
4,000
Illinois
Finance
Authority,
Revenue
Bonds,
Lutheran
Home
and
Services,
Series
2019A,
5.000%,
11/01/49
11/26
at
103.00
N/R
3,248,720
10,000
Illinois
Finance
Authority,
Revenue
Bonds,
Northshore
-
Edward-
Elmhurst
Health
Credit
Group,
Series
2022A,
5.000%,
8/15/47,
(UB)
(6)
8/32
at
100.00
AA-
10,584,900
12,000
Illinois
Finance
Authority,
Revenue
Bonds,
OSF
Healthcare
System,
Series
2015A,
5.000%,
11/15/45
11/25
at
100.00
A
12,080,880
Illinois
Finance
Authority,
Revenue
Bonds,
Rosalind
Franklin
University
Research
Building
Project,
Series
2017C:
1,000
5.000%,
8/01/42
8/27
at
100.00
BBB+
1,000,390
1,000
5.000%,
8/01/46
8/27
at
100.00
BBB+
985,270
1,000
5.000%,
8/01/47
8/27
at
100.00
BBB+
986,980
Illinois
Finance
Authority,
Revenue
Bonds,
Silver
Cross
Hospital
and
Medical
Centers,
Refunding
Series
2015C:
560
5.000%,
8/15/35
8/25
at
100.00
A3
571,009
5,140
5.000%,
8/15/44
8/25
at
100.00
A3
5,144,832
10,000
Illinois
Finance
Authority,
Revenue
Bonds,
University
of
Chicago
Medicine,
Series
2022A,
5.000%,
8/15/52,
(UB)
(6)
8/32
at
100.00
AA-
10,513,700
Illinois
Finance
Authority,
Revenue
Bonds,
University
of
Chicago,
Refunding
Series
2015A:
2,235
5.000%,
10/01/46
10/25
at
100.00
AA-
2,275,900
17,765
5.000%,
10/01/46,
(Pre-refunded
10/01/25)
10/25
at
100.00
N/R (5)
18,421,950
5,670
Illinois
Housing
Development
Authority,
Multifamily
Housing
Revenue
Bonds,
Series
2021C,
2.850%,
7/01/56
7/30
at
100.00
Aaa
3,870,909
3,665
Illinois
Sports
Facility
Authority,
State
Tax
Supported
Bonds,
Refunding
Series
2014,
5.250%,
6/15/31
-
AGM
Insured
6/24
at
100.00
BB+
3,706,121
Illinois
State,
General
Obligation
Bonds,
December
Series
2017A:
11,800
5.000%,
12/01/38
12/27
at
100.00
Baa1
12,218,310
1,330
5.000%,
12/01/39
12/27
at
100.00
BBB+
1,373,451
Illinois
State,
General
Obligation
Bonds,
February
Series
2014:
3,275
5.000%,
2/01/24
No
Opt.
Call
BBB+
3,296,943
1,575
5.250%,
2/01/34
2/24
at
100.00
BBB+
1,586,497
7,515
5.000%,
2/01/39
2/24
at
100.00
BBB+
7,536,568
5,200
Illinois
State,
General
Obligation
Bonds,
January
Series
2016,
5.000%,
1/01/29
1/26
at
100.00
BBB+
5,375,032
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Illinois
(continued)
Illinois
State,
General
Obligation
Bonds,
May
Series
2014:
$
510
5.000%,
5/01/36
5/24
at
100.00
BBB+
$
513,315
1,915
5.000%,
5/01/39
5/24
at
100.00
Baa1
1,922,966
4,460
Illinois
State,
General
Obligation
Bonds,
May
Series
2020,
5.500%,
5/01/39
5/30
at
100.00
BBB+
4,877,233
1,495
Illinois
State,
General
Obligation
Bonds,
May
Series
2023B,
4.500%,
5/01/48
5/32
at
100.00
BBB+
1,492,847
13,200
Illinois
State,
General
Obligation
Bonds,
November
Series
2016,
5.000%,
11/01/41
11/26
at
100.00
Baa1
13,330,416
31,460
Illinois
State,
General
Obligation
Bonds,
November
Series
2017C,
5.000%,
11/01/29
11/27
at
100.00
BBB+
33,476,586
2,040
Illinois
State,
General
Obligation
Bonds,
November
Series
2017D,
5.000%,
11/01/27
No
Opt.
Call
BBB+
2,170,723
5,000
Illinois
State,
General
Obligation
Bonds,
November
Series
2019B,
4.000%,
11/01/35
11/29
at
100.00
Baa1
5,048,350
5,000
Illinois
State,
General
Obligation
Bonds,
October
Series
2016,
5.000%,
2/01/29
2/27
at
100.00
Baa1
5,268,150
Illinois
Toll
Highway
Authority,
Toll
Highway
Revenue
Bonds,
Senior
Lien
Series
2013A:
5,000
5.000%,
1/01/35
8/23
at
100.00
AA-
5,006,750
5,590
5.000%,
1/01/38
8/23
at
100.00
AA-
5,594,807
18,920
Illinois
Toll
Highway
Authority,
Toll
Highway
Revenue
Bonds,
Senior
Lien
Series
2015A,
5.000%,
1/01/40
7/25
at
100.00
AA-
19,287,616
10,470
Illinois
Toll
Highway
Authority,
Toll
Highway
Revenue
Bonds,
Senior
Lien
Series
2019A,
5.000%,
1/01/44
7/29
at
100.00
AA-
11,050,143
4,250
Illinois
Toll
Highway
Authority,
Toll
Highway
Revenue
Bonds,
Senior
Series
2023A,
5.000%,
1/01/44
7/33
at
100.00
AA-
4,620,345
540
Metropolitan
Pier
and
Exposition
Authority,
Illinois,
McCormick
Place
Expansion
Project
Bonds,
Refunding
Series
2015B,
5.000%,
6/15/52
12/25
at
100.00
BBB
545,519
Metropolitan
Pier
and
Exposition
Authority,
Illinois,
McCormick
Place
Expansion
Project
Bonds,
Refunding
Series
2020A:
11,305
4.000%,
6/15/50
12/29
at
100.00
BBB
10,404,896
7,290
5.000%,
6/15/50
12/29
at
100.00
BBB
7,399,058
Metropolitan
Pier
and
Exposition
Authority,
Illinois,
McCormick
Place
Expansion
Project
Bonds,
Refunding
Series
2022A:
9,945
4.000%,
12/15/47
12/31
at
100.00
BBB
9,276,497
4,500
4.000%,
6/15/52
12/31
at
100.00
BBB
4,105,980
Metropolitan
Pier
and
Exposition
Authority,
Illinois,
McCormick
Place
Expansion
Project
Bonds,
Series
2015A:
2,890
0.000%,
12/15/52
No
Opt.
Call
BBB
703,859
5,185
5.000%,
6/15/53
12/25
at
100.00
BBB
5,234,206
Metropolitan
Pier
and
Exposition
Authority,
Illinois,
Revenue
Bonds,
McCormick
Place
Expansion
Project,
Capital
Appreciation
Refunding
Series
2010B-1:
25,000
0.000%,
6/15/44
-
AGM
Insured
No
Opt.
Call
BBB
9,796,500
43,200
0.000%,
6/15/45
-
AGM
Insured
No
Opt.
Call
BBB
16,074,288
10,000
0.000%,
6/15/46
-
AGM
Insured
No
Opt.
Call
BBB
3,534,600
8,750
Metropolitan
Pier
and
Exposition
Authority,
Illinois,
Revenue
Bonds,
McCormick
Place
Expansion
Project,
Series
1994B,
0.000%,
6/15/28
-
NPFG
Insured
No
Opt.
Call
Baa2
7,270,113
Metropolitan
Pier
and
Exposition
Authority,
Illinois,
Revenue
Bonds,
McCormick
Place
Expansion
Project,
Series
2002A:
18,085
0.000%,
12/15/24
-
NPFG
Insured
No
Opt.
Call
Baa2
17,111,122
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Illinois
(continued)
$
20,045
0.000%,
12/15/35
-
AGM
Insured
No
Opt.
Call
BBB
$
12,294,200
9,010
0.000%,
6/15/37
-
NPFG
Insured
No
Opt.
Call
Baa2
5,024,697
465
Morton
Grove,
Illinois,
Tax
Increment
Revenue
Bonds,
Sawmill
Station
Redevelopment
Project,
Senior
Lien
Series
2019,
5.000%,
1/01/39
1/26
at
100.00
N/R
427,851
1,842
Plano,
Illinois,
Special
Tax
Bonds,
Special
Service
Area
1
&
2
Lakewood
Springs
Project,
Refunding
Series
2014,
5.000%,
3/01/34
-
AGM
Insured
3/24
at
100.00
AA
1,850,105
2,615
Regional
Transportation
Authority,
Cook,
DuPage,
Kane,
Lake,
McHenry
and
Will
Counties,
Illinois,
General
Obligation
Bonds,
Series
2000A,
6.500%,
7/01/30
-
NPFG
Insured
No
Opt.
Call
Aa3
3,097,258
7,025
Southwestern
Illinois
Development
Authority,
Health
Facility
Revenue
Bonds,
Memorial
Group,
Inc.,
Series
2013,
7.625%,
11/01/48,
(Pre-
refunded
11/01/23)
11/23
at
100.00
N/R (5)
7,092,159
4,000
Southwestern
Illinois
Development
Authority,
School
Revenue
Bonds,
Triad
School
District
2,
Madison
County,
Illinois,
Series
2006,
0.000%,
10/01/25
-
NPFG
Insured
No
Opt.
Call
Baa2
3,671,080
12,125
Springfield,
Illinois,
Electric
Revenue
Bonds,
Refunding
Senior
Lien
Series
2015,
5.000%,
3/01/40
-
AGM
Insured
3/25
at
100.00
A1
12,333,429
6,415
Will
County
School
District
122,
New
Lenox,
Illinois,
General
Obligation
Bonds,
Capital
Appreciation
School
Series
2004D,
0.000%,
11/01/24
-
AGM
Insured
No
Opt.
Call
Aa3
6,114,842
Total
Illinois
704,227,052
Indiana
-
2.2%
(1.4%
of
Total
Investments)
2,650
Crown
Point
Multi-School
Building
Corporation,
Indiana,
First
Mortgage
Bonds,
Crown
Point
Community
School
Corporation,
Series
2000,
0.000%,
1/15/24
-
NPFG
Insured
No
Opt.
Call
Baa2
2,606,036
12,045
Indiana
Finance
Authority,
Educational
Facilities
Revenue
Bonds,
Valparaiso
University
Project,
Series
2014,
5.000%,
10/01/44
10/24
at
100.00
Baa2
12,071,138
5,000
Indiana
Finance
Authority,
Hospital
Revenue
Bonds,
Indiana
University
Health
Obligation
Group,
Fixed
Rate
Series
2023A,
5.000%,
10/01/53
10/33
at
100.00
AA
5,357,600
17,970
Indiana
Finance
Authority,
Wastewater
Utility
Revenue
Bonds,
CWA
Authority
Project,
Series
2014A,
5.000%,
10/01/44
10/24
at
100.00
A+
18,329,580
Indianapolis
Local
Public
Improvement
Bond
Bank,
Indiana,
Series
1999E:
10,000
0.000%,
2/01/26
-
AMBAC
Insured
No
Opt.
Call
AA-
9,170,000
20,000
0.000%,
2/01/28
-
AMBAC
Insured
No
Opt.
Call
AA-
17,182,800
Total
Indiana
64,717,154
Iowa
-
1.5%
(0.9%
of
Total
Investments)
Iowa
Finance
Authority,
Iowa,
Midwestern
Disaster
Area
Revenue
Bonds,
Iowa
Fertilizer
Company
Project,
Refunding
Series
2022:
10,045
5.000%,
12/01/50
12/29
at
103.00
BBB-
10,163,833
10,860
5.000%,
12/01/50,
(Mandatory
Put
12/01/42)
12/29
at
103.00
BBB-
11,086,648
5,700
Iowa
Finance
Authority,
Senior
Housing
Revenue
Bonds,
PHS
Council
Bluffs,
Inc.
Project,
Series
2018,
5.250%,
8/01/55
8/23
at
102.00
N/R
4,299,795
10,000
Iowa
Finance
Authority,
Single
Family
Mortgage
Revenue
Bonds,
Social
Taxable
Series
2023C,
4.850%,
7/01/43,
(UB)
(6)
1/33
at
100.00
AAA
10,248,300
36,850
Iowa
Tobacco
Settlement
Authority,
Tobacco
Settlement
Asset-Backed
Bonds,
Class
2
Capital
Appreciation
Senior
Lien
Series
2021B-2,
0.000%,
6/01/65
6/31
at
25.58
N/R
4,268,704
3,715
Iowa
Tobacco
Settlement
Authority,
Tobacco
Settlement
Asset-Backed
Bonds,
Seenior
Lien
Series
Class
2
Series
2021B-1,
4.000%,
6/01/49
6/31
at
100.00
BBB+
3,679,336
Total
Iowa
43,746,616
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Kansas
-
0.4%
(0.2%
of
Total
Investments)
$
1,000
Lenexa,
Kansas,
Health
Care
Facilities
Revenue
Bonds,
Lakeview
Village
Inc,
Series
2017A,
5.000%,
5/15/43
5/27
at
100.00
BB+
$
921,950
Wyandotte
County-Kansas
City
Unified
Government,
Kansas,
Sales
Tax
Special
Obligation
Bonds,
Vacation
Village
Project
Area
1
and
2A,
Series
2015:
3,180
5.000%,
9/01/27
9/25
at
100.00
N/R
2,892,242
2,380
5.750%,
9/01/32
9/25
at
100.00
N/R
1,985,301
2,575
6.000%,
9/01/35
9/25
at
100.00
N/R
2,130,091
2,500
Wyandotte
County-Kansas
City
Unified
Government,
Kansas,
Sales
Tax
Special
Obligation
Bonds,
Village
East
Project
Areas
2B
3
and
5,
Series
2022,
5.750%,
9/01/39,
144A
3/29
at
103.00
N/R
2,428,450
Total
Kansas
10,358,034
Kentucky
-
2.0%
(1.2%
of
Total
Investments)
6,400
Christian
County,
Kentucky,
Hospital
Revenue
Bonds,
Jennie
Stuart
Medical
Center,
Series
2016,
5.500%,
2/01/44
2/26
at
100.00
BBB-
6,499,712
10,140
Kentucky
Economic
Development
Finance
Authority,
Hospital
Revenue
Bonds,
Owensboro
Health,
Refunding
Series
2017A,
5.000%,
6/01/37
6/27
at
100.00
BBB-
10,227,305
Kentucky
Economic
Development
Finance
Authority,
Revenue
Bonds,
Next
Generation
Kentucky
Information
Highway
Project,
Senior
Series
2015A:
4,345
5.000%,
7/01/37
7/25
at
100.00
Baa2
4,390,058
16,715
5.000%,
1/01/45
7/25
at
100.00
Baa2
16,802,252
Kentucky
Public
Transportation
Infrastructure
Authority,
Toll
Revenue
Bonds,
Downtown
Crossing
Project,
Convertible
Capital
Appreciation
First
Tier
Series
2013C:
4,360
6.750%,
7/01/43
7/31
at
100.00
Baa2
4,990,718
8,510
6.875%,
7/01/46
7/31
at
100.00
Baa2
9,759,098
5,000
Louisville
and
Jefferson
County
Metropolitan
Government,
Kentucky,
Hospital
Revenue
Bonds,
UofL
Health
Project,
Series
2022A,
5.000%,
5/15/52
5/32
at
100.00
BBB+
5,078,700
Total
Kentucky
57,747,843
Louisiana
-
1.3%
(0.8%
of
Total
Investments)
2,435
Ascension
Parish
Industrial
development
Board,
Louisiana,
Revenue
Bonds,
Impala
Warehousing
(US)
LLC
Project,
Series
2013,
6.000%,
7/01/36
8/23
at
100.00
N/R
2,436,339
12,840
Louisiana
Publc
Facilities
Authority,
Lousiana,
Revenue
Bonds,
Ochsner
Clinic
Foundation
Project,
Series
2020A,
4.000%,
5/15/49
5/30
at
100.00
A3
11,926,691
Louisiana
Public
Facilities
Authority,
Hospital
Revenue
Bonds,
Franciscan
Missionaries
of
Our
Lady
Health
System,
Series
1998A:
3,565
5.750%,
7/01/25,
(UB)
No
Opt.
Call
A2
3,668,456
135
5.750%,
7/01/25,
(ETM),
(UB)
No
Opt.
Call
A2 (5)
141,586
8,970
Louisiana
Public
Facilities
Authority,
Revenue
Bonds,
Loyola
University
Project,
Refunding
Series
2017,
5.250%,
10/01/46
10/33
at
100.00
BBB
8,921,741
Louisiana
Public
Facilities
Authority,
Revenue
Bonds,
Ochsner
Clinic
Foundation
Project,
Series
2015:
1,065
4.250%,
5/15/40
5/25
at
100.00
A3
1,065,042
5,000
5.000%,
5/15/47
5/25
at
100.00
A3
5,051,100
1,000
New
Orleans,
Louisiana,
Sewerage
Service
Revenue
Bonds,
Refunding
Series
2014,
4.250%,
6/01/34,
(Pre-refunded
6/01/24)
6/24
at
100.00
A (5)
1,007,890
3,275
Saint
James
Parish,
Louisiana,
Revenue
Bonds,
NuStar
Logistics,
L.P.
Project,
Series
2010A,
6.350%,
10/01/40,
144A
6/30
at
100.00
BB-
3,535,723
Total
Louisiana
37,754,568
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Maine
-
1.4%
(0.9%
of
Total
Investments)
Maine
Health
and
Higher
Educational
Facilities
Authority
Revenue
Bonds,
Eastern
Maine
Medical
Center
Obligated
Group
Issue,
Series
2016A:
$
5,480
4.000%,
7/01/41
7/26
at
100.00
Ba1
$
4,856,486
10,265
4.000%,
7/01/46
7/26
at
100.00
Ba1
8,642,411
10,000
Maine
Health
and
Higher
Educational
Facilities
Authority,
Revenue
Bonds,
Mainehealth
Issue,
Series
2015,
5.000%,
7/01/39,
(Pre-
refunded
7/01/24)
7/24
at
100.00
A+ (5)
10,150,300
1,000
Maine
Health
and
Higher
Educational
Facilities
Authority,
Revenue
Bonds,
MaineHealth
Issue,
Series
2020A,
4.000%,
7/01/45
7/30
at
100.00
A+
947,860
4,500
Maine
State
Housing
Authority,
Multifamily
Mortgage
Purchase
Bonds,
Series
2021A,
2.200%,
11/15/51
5/30
at
100.00
AA+
2,640,240
8,885
Maine
State
Housing
Authority,
Multifamily
Mortgage
Purchase
Bonds,
Series
2022A,
2.600%,
11/15/46
11/30
at
100.00
AA+
6,290,936
7,695
Maine
State
Housing
Authority,
Single
Family
Mortgage
Purchase
Bonds,
Series
2020D,
2.800%,
11/15/45
5/29
at
100.00
AA+
5,721,694
915
Maine
State
Housing
Authority,
Single
Family
Mortgage
Purchase
Bonds,
Social
Series
2021C,
2.300%,
11/15/46
11/30
at
100.00
AA+
599,279
2,000
Maine
State
Housing
Authority,
Single
Family
Mortgage
Purchase
Bonds,
Social
Series
2023A,
4.600%,
11/15/48
5/32
at
100.00
AA+
1,985,760
Total
Maine
41,834,966
Maryland
-
2.0%
(1.2%
of
Total
Investments)
Baltimore,
Maryland,
Convention
Center
Hotel
Revenue
Bonds,
Refunding
Series
2017:
1,280
5.000%,
9/01/33
9/27
at
100.00
B
1,287,987
3,050
5.000%,
9/01/39
9/27
at
100.00
B
2,914,610
3,025
5.000%,
9/01/46
9/27
at
100.00
B
2,773,169
1,000
Howard
County,
Maryland,
Special
Obligation
Bonds,
Downtown
Columbia
Project,
Series
2017A,
4.375%,
2/15/39,
144A
2/26
at
100.00
N/R
946,550
Maryland
Community
Development
Administration
Department
of
Housing
and
Community
Development,
Residential
Revenue
Bonds,
Series
2021C:
6,600
2.450%,
9/01/41
9/30
at
100.00
Aa1
4,929,804
12,000
2.550%,
9/01/44
9/30
at
100.00
Aa1
8,768,400
7,975
Maryland
Health
and
Higher
Educational
Facilities
Authority,
Revenue
Bonds,
Adventist
HealthCare
Issue,
Series
2021B,
4.000%,
1/01/51
1/32
at
100.00
Baa3
6,820,938
13,315
Maryland
Health
and
Higher
Educational
Facilities
Authority,
Revenue
Bonds,
Adventist
Healthcare,
Series
2016A,
5.500%,
1/01/46
1/27
at
100.00
Baa3
13,550,276
5,000
Maryland
Health
and
Higher
Educational
Facilities
Authority,
Revenue
Bonds,
LifeBridge
Health
System,
Series
2015,
5.000%,
7/01/47
7/25
at
100.00
A+
5,038,350
1,500
Maryland
Health
and
Higher
Educational
Facilities
Authority,
Revenue
Bonds,
Peninsula
Regional
Medical
Center
Issue,
Refunding
Series
2015,
5.000%,
7/01/45,
(Pre-refunded
7/01/24)
7/24
at
100.00
Baa1 (5)
1,521,195
Prince
George's
County
Revenue
Authority,
Maryland,
Special
Obligation
Bonds,
Suitland-Naylor
Road
Project,
Series
2016:
2,000
4.750%,
7/01/36,
144A
1/26
at
100.00
N/R
2,007,600
2,300
5.000%,
7/01/46,
144A
1/26
at
100.00
N/R
2,306,624
Rockville
Mayor
and
Council,
Maryland,
Economic
Development
Revenue
Bonds,
Series
2017B:
1,335
4.250%,
11/01/37
11/24
at
103.00
B
1,078,907
1,250
4.500%,
11/01/43
11/24
at
103.00
B
999,338
2,650
5.000%,
11/01/47
11/24
at
103.00
B
2,230,213
Total
Maryland
57,173,961
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Massachusetts
-
2.8%
(1.7%
of
Total
Investments)
Massachusetts
Development
Finance
Agency
Revenue
Bonds,
Lawrence
General
Hospital
Issue,
Series
2014A:
$
2,245
5.250%,
7/01/34
7/24
at
100.00
B-
$
2,079,207
6,195
5.500%,
7/01/44
7/24
at
100.00
B-
5,465,910
Massachusetts
Development
Finance
Agency
Revenue
Refunding
Bonds,
NewBridge
on
the
Charles,
Inc.
Issue,
Series
2017:
8,200
4.125%,
10/01/42,
144A
8/23
at
105.00
BB+
6,574,186
3,000
5.000%,
10/01/57,
144A
8/23
at
105.00
BB+
2,624,640
Massachusetts
Development
Finance
Agency,
Revenue
Bonds,
Emerson
College,
Series
2015:
2,280
4.500%,
1/01/45
1/25
at
100.00
Baa2
2,150,541
2,085
5.000%,
1/01/45
1/25
at
100.00
Baa2
2,089,629
4,035
Massachusetts
Development
Finance
Agency,
Revenue
Bonds,
Emmanuel
College,
Series
2016A,
4.000%,
10/01/46
10/26
at
100.00
Baa2
3,373,018
16,280
Massachusetts
Development
Finance
Agency,
Revenue
Bonds,
Massachusetts
Institute
of
Technology,
Series
2020P,
5.000%,
7/01/50,
(UB)
(6)
No
Opt.
Call
AAA
19,114,185
900
Massachusetts
Development
Finance
Agency,
Revenue
Bonds,
Milford
Regional
Medical
Center
Issue,
Series
2020G,
5.000%,
7/15/46,
144A
7/30
at
100.00
B+
778,581
6,000
Massachusetts
Development
Finance
Authority,
Revenue
Bonds,
WGBH
Educational
Foundation,
Series
2002A,
5.750%,
1/01/42
-
AMBAC
Insured
No
Opt.
Call
AA-
7,456,620
7,405
Massachusetts
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Massachusetts
Institute
of
Technology,
Series
2002K,
5.500%,
7/01/32,
(UB)
(6)
No
Opt.
Call
AAA
9,113,186
2,785
Massachusetts
Housing
Finance
Agency,
Housing
Bonds,
Series
2014D,
3.875%,
12/01/39
6/24
at
100.00
AA-
2,670,230
Massachusetts
Housing
Finance
Agency,
Housing
Bonds,
Sustainability
Green
Series
2021A-1:
3,340
2.375%,
12/01/46
6/30
at
100.00
Aa2
2,221,367
3,600
2.450%,
12/01/51
6/30
at
100.00
Aa2
2,247,840
8,310
2.550%,
12/01/56
6/30
at
100.00
Aa2
5,041,345
4,500
Massachusetts
Housing
Finance
Agency,
Single
Family
Housing
Revenue
Bonds,
Social
Series
2020-220,
2.300%,
12/01/44
6/30
at
100.00
AA+
3,171,150
3,500
Massachusetts
Housing
Finance
Agency,
Single
Family
Housing
Revenue
Bonds,
Social
Series
2023-227,
4.900%,
12/01/48
6/32
at
100.00
AA+
3,552,990
3,345
Massachusetts
State,
General
Obligation
Bonds,
Consolidated
Loan,
Series
2021B,
2.000%,
4/01/50
4/31
at
100.00
AA+
1,971,376
425
Massachusetts
Water
Pollution
Abatement
Trust,
Revenue
Bonds,
MWRA
Loan
Program,
Subordinate
Series
1999A,
5.750%,
8/01/29
8/23
at
100.00
AAA
425,905
Total
Massachusetts
82,121,906
Michigan
-
2.2%
(1.3%
of
Total
Investments)
4,600
Detroit
City
School
District,
Wayne
County,
Michigan,
Unlimited
Tax
School
Building
and
Site
Improvement
Bonds,
Series
2001A,
6.000%,
5/01/29
-
AGM
Insured,
(UB)
No
Opt.
Call
AA
5,109,726
3,665
Detroit
Downtown
Development
Authority,
Michigan,
Tax
Increment
Revenue
Bonds,
Catalyst
Development
Project,
Series
2018A,
5.000%,
7/01/48
-
AGM
Insured
7/24
at
100.00
AA
3,676,728
1,000
Lansing,
Ingham
and
Eaton
Counties,
Michigan,
General
Obligation
Bonds,
Refunding
&
Capital
Improvement
Series
2023B,
4.125%,
6/01/48
-
AGM
Insured
6/33
at
100.00
AA
978,790
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Michigan
(continued)
Michigan
Finance
Authority,
Hospital
Revenue
Bonds,
Sparrow
Obligated
Group,
Refunding
Series
2015:
$
4,495
4.000%,
11/15/35,
(Pre-refunded
5/15/25)
5/25
at
100.00
A- (5)
$
4,566,561
2,410
4.000%,
11/15/36,
(Pre-refunded
5/15/25)
5/25
at
100.00
A- (5)
2,448,367
Michigan
Finance
Authority,
Michigan,
Revenue
Bonds,
Trinity
Health
Credit
Group,
Refunding
Series
2016MI:
5,470
5.000%,
12/01/45
6/26
at
100.00
AA-
5,573,328
145
5.000%,
12/01/45,
(Pre-refunded
6/01/26)
6/26
at
100.00
N/R (5)
152,787
2,705
Michigan
Finance
Authority,
Tobacco
Settlement
Asset-
Backed
Bonds,
2006
Sold
Tobacco
Receipts
Senior
Current
Interest
Series
2020A-2,
5.000%,
6/01/40
12/30
at
100.00
BBB+
2,829,673
1,000
Michigan
Finance
Authority,
Tobacco
Settlement
Asset-
Backed
Bonds,
2007
Sold
Tobacco
Receipts,
Senior
Current
Interest
Series
2020A-
CL-1,
4.000%,
6/01/49
12/30
at
100.00
BBB+
906,990
Michigan
Housing
Development
Authority,
Single
Family
Mortgage
Revenue
Bonds,
Social
Series
2021A:
21,675
2.350%,
12/01/46
12/30
at
100.00
Aa2
14,815,296
8,280
2.500%,
6/01/52
12/30
at
100.00
Aa2
5,431,763
10,000
Michigan
State
Building
Authority,
Revenue
Bonds,
Facilities
Program,
Refunding
Series
2020-I,
2.625%,
10/15/56
10/31
at
100.00
Aa2
6,517,200
4,305
Michigan
State
Building
Authority,
Revenue
Bonds,
Facilities
Program,
Refunding
Series
2023II,
4.000%,
10/15/47
,
(WI/DD)
10/33
at
100.00
AA-
4,184,546
Wayne
County
Airport
Authority,
Michigan,
Revenue
Bonds,
Detroit
Metropolitan
Wayne
County
Airport,
Series
2015D:
3,550
5.000%,
12/01/40
12/25
at
100.00
A
3,632,466
2,730
5.000%,
12/01/45
12/25
at
100.00
A
2,778,321
Total
Michigan
63,602,542
Minnesota
-
2.0%
(1.2%
of
Total
Investments)
Baytown
Township,
Minnesota
Charter
School
Lease
Revenue
Bonds,
Saint
Croix
Preparatory
Academy,
Refunding
Series
2016A:
155
4.000%,
8/01/36
8/26
at
100.00
BB+
131,436
440
4.000%,
8/01/41
8/26
at
100.00
BB+
354,081
1,875
Brooklyn
Park,
Minnesota,
Charter
School
Lease
Revenue
Bonds,
Prairie
Seeds
Academy
Project,
Refunding
Series
2015A,
5.000%,
3/01/34
3/25
at
100.00
BB-
1,768,838
1,720
Deephaven,
Minnesota,
Charter
School
Lease
Revenue
Bonds,
Eagle
Ridge
Academy
Project,
Series
2015A,
5.500%,
7/01/50
7/25
at
100.00
BB+
1,720,206
Duluth
Economic
Development
Authority,
Minnesota,
Health
Care
Facilities
Revenue
Bonds,
Essentia
Health
Obligated
Group,
Series
2018A:
8,520
4.250%,
2/15/43
2/28
at
100.00
A-
8,231,342
25,830
4.250%,
2/15/48
2/28
at
100.00
A-
24,407,284
Minneapolis,
Minnesota,
Charter
School
Lease
Revenue
Bonds,
Cyber
Village
Academy
Project,
Series
2022A:
340
5.250%,
6/01/42
6/32
at
100.00
N/R
323,197
215
5.500%,
6/01/57
6/32
at
100.00
N/R
204,248
1,400
Minneapolis,
Minnesota,
Charter
School
Lease
Revenue
Bonds,
Hiawatha
Academies
Project,
Series
2022A,
5.500%,
7/01/52
7/32
at
100.00
N/R
1,284,668
1,105
Minneapolis-St.
Paul
Metropolitan
Airports
Commission,
Minnesota,
Airport
Revenue
Bonds,
Subordinate
Lien
Series
2022A,
4.250%,
1/01/52
1/32
at
100.00
A+
1,087,486
2,225
Minnesota
Housing
Finance
Agency,
Residential
Housing
Finance
Bonds,
Series
2020E,
2.700%,
7/01/44
7/29
at
100.00
AA+
1,762,400
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Minnesota
(continued)
Minnesota
Housing
Finance
Agency,
Residential
Housing
Finance
Bonds,
Series
2020I:
$
2,255
2.150%,
7/01/45
1/30
at
100.00
AA+
$
1,611,739
3,625
2.200%,
1/01/51
1/30
at
100.00
AA+
2,576,976
5,585
Minnesota
Housing
Finance
Agency,
Residential
Housing
Finance
Bonds,
Series
2021H,
2.550%,
1/01/46
1/31
at
100.00
AA+
4,501,566
Saint
Cloud,
Minnesota,
Charter
School
Lease
Revenue
Bonds,
Stride
Academy
Project,
Series
2016A:
405
5.000%,
4/01/36
4/26
at
100.00
N/R
334,975
605
5.000%,
4/01/46
4/26
at
100.00
N/R
445,994
1,395
Saint
Paul
Housing
and
Redevelopment
Authority,
Minnesota,
Health
Care
Facility
Revenue
Bonds,
HealthPartners
Obligated
Group,
Refunding
Series
2015A,
4.000%,
7/01/35
7/25
at
100.00
A
1,383,408
90
Saint
Paul
Housing
and
Redevelopment
Authority,
Minnesota,
Multifamily
Housing
Revenue
Bonds,
2700
University
at
Westgate
Station,
Series
2015B,
4.250%,
4/01/25
8/23
at
100.00
N/R
88,873
St.
Paul
Housing
and
Redevelopment
Authority,
Minnesota,
Hospital
Revenue
Bonds,
HealthEast
Inc.,
Series
2015A:
2,785
5.000%,
11/15/40,
(Pre-refunded
11/15/25)
11/25
at
100.00
N/R (5)
2,894,450
3,190
5.000%,
11/15/44,
(Pre-refunded
11/15/25)
11/25
at
100.00
N/R (5)
3,315,367
Total
Minnesota
58,428,534
Mississippi
-
0.5%
(0.3%
of
Total
Investments)
1,905
Mississippi
Development
Bank,
Special
Obligation
Bonds,
Gulfport
Water
and
Sewer
System
Project,
Series
2005,
5.250%,
7/01/24
-
AGM
Insured,
(ETM)
No
Opt.
Call
A1 (5)
1,938,738
1,000
Mississippi
Home
Corporation,
Single
Family
Mortgage
Revenue
Bonds,
Series
2021A,
2.125%,
12/01/44
6/30
at
100.00
Aaa
664,840
13,000
Mississippi
Home
Corporation,
Single
Family
Mortgage
Revenue
Bonds,
Series
2023C,
4.650%,
12/01/48,
(UB)
,
(WI/DD)
6/32
at
100.00
Aaa
13,076,050
Total
Mississippi
15,679,628
Missouri
-
2.4%
(1.4%
of
Total
Investments)
1,650
Chesterfield
Valley
Transportation
Development
District,
Missouri,
Transportation
Sales
Tax
Revenue
Bonds,
Series
2015,
3.625%,
5/15/31
8/23
at
100.00
A-
1,650,049
2,000
Jackson
County,
Missouri,
Special
Obligation
Bonds,
Series
2023A,
4.375%,
12/01/58
12/33
at
100.00
AA-
1,924,920
Kansas
City
Industrial
Development
Authority,
Missouri,
Sales
Tax
Revenue
Bonds,
Ward
Parkway
Center
Community
Improvement
District,
Senior
Refunding
&
Improvement
Series
2016:
400
5.000%,
4/01/36,
144A
4/26
at
100.00
N/R
373,584
1,520
5.000%,
4/01/46,
144A
4/26
at
100.00
N/R
1,334,575
15,000
Kansas
City
Municipal
Assistance
Corporation,
Missouri,
Leasehold
Revenue
Bonds,
Improvement
Series
2004B-1,
0.000%,
4/15/28
-
AMBAC
Insured
No
Opt.
Call
A2
12,814,800
4,345
Kirkwood
Industrial
Development
Authority,
Missouri,
Retirement
Community
Revenue
Bonds,
Aberdeen
Heights
Project,
Refunding
Series
2017A,
5.250%,
5/15/50
5/27
at
100.00
BB-
3,290,773
Liberty,
Missouri,
Special
Obligation
Tax
Increment
and
Special
Districts
Bonds,
Liberty
Commons
Project,
Series
2015A:
1,575
5.750%,
6/01/35,
144A
6/25
at
100.00
N/R
1,463,632
1,055
6.000%,
6/01/46,
144A
6/25
at
100.00
N/R
970,283
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Missouri
(continued)
$
7,030
Missouri
Health
and
Education
Facilities
Authority,
Health
Facilities
Revenue
Bonds,
Saint
Luke's
Health
System,
Inc.,
Series
2018A,
4.000%,
11/15/48
5/28
at
100.00
A+
$
6,605,458
Missouri
Health
and
Educational
Facilities
Authority,
Educational
Facilities
Revenue
Bonds,
Saint
Louis
College
of
Pharmacy,
Series
2015B:
1,410
5.000%,
5/01/40
11/23
at
100.00
BBB-
1,415,372
2,000
5.000%,
5/01/45
11/23
at
100.00
BBB-
2,007,620
7,040
Missouri
Health
and
Educational
Facilities
Authority,
Health
Facilities
Revenue
Bonds,
CoxHealth,
Series
2013A,
5.000%,
11/15/48
11/23
at
100.00
A2
6,991,776
5,500
Missouri
Health
and
Educational
Facilities
Authority,
Health
Facilities
Revenue
Bonds,
Mercy
Health,
Series
2020,
4.000%,
6/01/53
6/30
at
100.00
A+
5,092,835
3,825
Missouri
Health
and
Educational
Facilities
Authority,
Health
Facilities
Revenue
Bonds,
Mosaic
Health
System,
Series
2019A,
4.000%,
2/15/44
2/29
at
100.00
A1
3,644,460
405
Saint
Louis
County
Industrial
Development
Authority,
Missouri,
Revenue
Bonds,
Friendship
Village
of
Sunset
Hills,
Series
2013A,
5.875%,
9/01/43
9/23
at
100.00
BB+
404,972
Saint
Louis
County
Industrial
Development
Authority,
Missouri,
Revenue
Bonds,
Saint
Andrew's
Resources
for
Seniors,
Series
2015A:
1,650
5.000%,
12/01/35
12/25
at
100.00
N/R
1,565,372
455
5.125%,
12/01/45
12/25
at
100.00
N/R
412,553
4,125
Saint
Louis,
Missouri,
Airport
Revenue
Bonds,
Lambert-St.
Louis
International
Airport,
Series
2005,
5.500%,
7/01/29
-
NPFG
Insured
No
Opt.
Call
A-
4,690,455
15,350
Springfield
Public
Building
Corporation,
Missouri,
Lease
Revenue
Bonds,
Jordan
Valley
Park
Projects,
Series
2000A,
0.000%,
6/01/30
-
AMBAC
Insured
No
Opt.
Call
N/R
11,234,665
Total
Missouri
67,888,154
Montana
-
0.2%
(0.1%
of
Total
Investments)
Kalispell,
Montana,
Housing
and
Healthcare
Facilities
Revenue
Bonds,
Immanuel
Lutheran
Corporation,
Series
2017A:
1,175
5.250%,
5/15/37
5/25
at
102.00
N/R
1,048,370
375
5.250%,
5/15/47
5/25
at
102.00
N/R
303,889
Montana
Board
of
Housing,
Single
Family
Mortgage
Bonds,
Series
2023A:
3,290
4.550%,
12/01/48
,
(WI/DD)
12/32
at
100.00
AA+
3,302,798
2,250
4.700%,
6/01/53
,
(WI/DD)
12/32
at
100.00
AA+
2,258,213
Total
Montana
6,913,270
Nebraska
-
1.0%
(0.6%
of
Total
Investments)
Douglas
County
Hospital
Authority
3,
Nebraska,
Health
Facilities
Revenue
Bonds,
Nebraska
Methodist
Health
System,
Refunding
Series
2015:
2,125
4.125%,
11/01/36
11/25
at
100.00
A
2,133,585
1,865
5.000%,
11/01/48
11/25
at
100.00
A
1,879,920
7,825
Nebraska
Investment
Finance
Authority,
Single
Family
Housing
Revenue
Bonds,
Series
2020A,
2.700%,
9/01/43
3/29
at
100.00
AAA
6,091,606
Nebraska
Investment
Finance
Authority,
Single
Family
Housing
Revenue
Bonds,
Series
2023A:
5,000
4.550%,
9/01/48,
(UB)
(6)
3/32
at
100.00
AA+
4,913,350
5,000
4.600%,
9/01/53,
(UB)
(6)
3/32
at
100.00
AAA
4,841,150
3,250
Nebraska
Investment
Finance
Authority,
Single
Family
Housing
Revenue
Bonds,
Social
Series
2023C,
4.650%,
9/01/48
9/32
at
100.00
AAA
3,269,565
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Nebraska
(continued)
$
6,800
Scotts
Bluff
County
Hospital
Authority
1,
Nebraska,
Hospital
Revenue
Bonds,
Regional
West
Medical
Center
Project,
Refunding
&
Improvement
Series
2016A,
5.250%,
2/01/37
2/27
at
100.00
BB-
$
6,867,864
Total
Nebraska
29,997,040
Nevada
-
1.2%
(0.7%
of
Total
Investments)
410
Director
of
the
State
of
Nevada
Department
of
Business
and
Industry,
Charter
School
Lease
Revenue
Bonds,
Somerset
Academy,
Series
2018A,
5.000%,
12/15/38,
144A
12/25
at
100.00
BB
391,345
Henderson,
Nevada,
Local
Improvement
Bonds,
Local
Improvement
District
T-21
Black
Mountain
Ranch,
Series
2022:
745
3.500%,
9/01/45
9/31
at
100.00
N/R
546,875
495
4.000%,
9/01/51
9/31
at
100.00
N/R
389,401
23,005
Las
Vegas
Convention
and
Visitors
Authority,
Nevada,
Convention
Center
Expansion
Revenue
Bonds,
Series
2018B,
4.000%,
7/01/49
7/28
at
100.00
AA-
21,982,888
2,150
Las
Vegas
Convention
and
Visitors
Authority,
Nevada,
Revenue
Bonds,
Refunding
Series
2017B,
4.000%,
7/01/36
7/27
at
100.00
A
2,161,245
960
Las
Vegas,
Nevada,
Sales
Tax
Increment
Revenue
Bonds,
Symphony
Park
Tourism
Improvement
District,
Series
2016,
4.375%,
6/15/35,
144A
8/23
at
100.00
N/R
880,896
500
Neveda
State
Director
of
the
Department
of
Business
and
Industry,
Charter
School
Revenue
Bonds,
Doral
Academy
of
Nevada,
Series
2017A,
5.000%,
7/15/37
7/25
at
100.00
BBB-
497,710
3,950
Reno,
Nevada,
Subordinate
Lien
Sales
Tax
Revenue
Refunding
Bonds,
ReTrac-Reno
Transporation
Rail
Access
Corridor
Project,
Series
2018A,
4.000%,
6/01/43
12/28
at
100.00
A2
3,720,386
3,000
Reno,
Nevada,
Subordinate
Lien
Sales
Tax
Revenue
Refunding
Capital
Appreciation
Bonds,
ReTrac-Reno
Transporation
Rail
Access
Corridor
Project,
Series
2018C,
0.000%,
7/01/58,
144A
7/38
at
31.26
N/R
391,800
3,210
Tahoe-Douglas
Visitors
Authority,
Nevada,
Stateline
Revenue
Bonds,
Series
2020,
5.000%,
7/01/51
7/30
at
100.00
N/R
3,128,787
Total
Nevada
34,091,333
New
Hampshire
-
1.2%
(0.7%
of
Total
Investments)
13,480
National
Finance
Authority,
New
Hampshire,
Hospital
Facilities
Revenue
Bonds,
Saint
Elizabeth
Medical
Center,
Inc.,
Series
2021A,
4.000%,
5/01/51
5/31
at
100.00
AA
12,575,222
11,930
National
Finance
Authority,
New
Hampshire,
Municipal
Certificates
Series
2022-1
Class
A,
4.375%,
9/20/36
No
Opt.
Call
BBB
11,795,260
5,000
National
Finance
Authority,
New
Hampshire,
Resource
Recovery
Revenue
Bonds,
Covanta
Project,
Refunding
Series
2018B,
4.625%,
11/01/42,
144A
8/23
at
100.00
B3
4,334,100
5,630
National
Finance
Authority,
New
Hampshire,
Resource
Recovery
Revenue
Bonds,
Covanta
Project,
Refunding
Series
2020A,
3.625%,
7/01/43,
(Mandatory
Put
7/02/40),
144A
7/25
at
100.00
B3
4,331,272
500
New
Hampshire
Health
and
Education
Facilities
Authority,
Revenue
Bonds,
Kendal
at
Hanover,
Series
2016,
5.000%,
10/01/40
10/26
at
100.00
BBB+
492,605
Total
New
Hampshire
33,528,459
New
Jersey
-
6.1%
(3.7%
of
Total
Investments)
New
Jersey
Economic
Development
Authority,
School
Facilities
Construction
Bonds,
Refunding
Series
2016BBB:
34,310
5.500%,
6/15/29,
(Pre-refunded
12/15/26)
12/26
at
100.00
A- (5)
37,112,441
2,110
5.500%,
6/15/30,
(Pre-refunded
12/15/26)
12/26
at
100.00
A- (5)
2,282,345
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
New
Jersey
(continued)
New
Jersey
Economic
Development
Authority,
School
Facilities
Construction
Bonds,
Series
2005N-1:
$
6,835
5.500%,
9/01/24
-
AMBAC
Insured
No
Opt.
Call
A-
$
6,981,337
5,045
5.500%,
9/01/28
-
NPFG
Insured
No
Opt.
Call
A-
5,578,660
New
Jersey
Economic
Development
Authority,
School
Facilities
Construction
Bonds,
Series
2015WW:
11,335
5.250%,
6/15/40,
(Pre-refunded
6/15/25)
6/25
at
100.00
A- (5)
11,781,486
655
5.250%,
6/15/40,
(Pre-refunded
6/15/25)
6/25
at
100.00
N/R (5)
680,800
3,310
New
Jersey
Health
Care
Facilities
Financing
Authority,
Revenue
Bonds,
Barnabas
Health,
Refunding
Series
2014A,
5.000%,
7/01/44
7/24
at
100.00
AA-
3,337,804
1,385
New
Jersey
Transportation
Trust
Fund
Authority,
Transportation
Program
Bonds,
Series
2023AA,
4.250%,
6/15/44
6/33
at
100.00
A-
1,393,850
2,035
New
Jersey
Transportation
Trust
Fund
Authority,
Transportation
System
Bonds,
Capital
Appreciation
Series
2010A,
0.000%,
12/15/26
No
Opt.
Call
A-
1,803,295
20,000
New
Jersey
Transportation
Trust
Fund
Authority,
Transportation
System
Bonds,
Refunding
Series
2006C,
0.000%,
12/15/33
-
AGM
Insured
No
Opt.
Call
A
13,659,600
18,025
New
Jersey
Transportation
Trust
Fund
Authority,
Transportation
System
Bonds,
Series
2014AA,
5.000%,
6/15/44
6/24
at
100.00
A-
18,125,940
New
Jersey
Transportation
Trust
Fund
Authority,
Transportation
System
Bonds,
Series
2015AA:
13,690
4.750%,
6/15/38
6/25
at
100.00
A-
13,834,293
7,935
5.000%,
6/15/45
6/25
at
100.00
A-
8,025,935
5,000
New
Jersey
Transportation
Trust
Fund
Authority,
Transportation
System
Bonds,
Series
2019AA,
5.250%,
6/15/43
12/28
at
100.00
A-
5,290,950
33,200
New
Jersey
Turnpike
Authority,
Revenue
Bonds,
Refunding
Series
2005D-1,
5.250%,
1/01/26
-
AGM
Insured
No
Opt.
Call
A1
34,738,156
5,000
South
Jersey
Transportation
Authority,
New
Jersey,
Transportation
System
Revenue
Bonds,
Series
2020A,
4.000%,
11/01/50
11/30
at
100.00
Baa2
4,650,850
Tobacco
Settlement
Financing
Corporation,
New
Jersey,
Tobacco
Settlement
Asset-Backed
Bonds,
Series
2018A:
1,420
5.000%,
6/01/46
6/28
at
100.00
BBB+
1,452,277
1,580
5.250%,
6/01/46
6/28
at
100.00
BBB+
1,639,850
3,180
Tobacco
Settlement
Financing
Corporation,
New
Jersey,
Tobacco
Settlement
Asset-Backed
Bonds,
Series
2018B,
5.000%,
6/01/46
6/28
at
100.00
BBB-
3,181,081
1,330
Washington
Township
Board
of
Education,
Mercer
County,
New
Jersey,
General
Obligation
Bonds,
Series
2005,
5.250%,
1/01/26
-
AGM
Insured
No
Opt.
Call
A1
1,386,405
Total
New
Jersey
176,937,355
New
Mexico
-
0.2%
(0.1%
of
Total
Investments)
3,345
New
Mexico
Mortgage
Finance
Authority,
Single
Family
Mortgage
Program
Bonds,
Class
1
Series
2021C,
2.250%,
7/01/46
7/30
at
100.00
Aaa
2,412,983
1,635
New
Mexico
Mortgage
Finance
Authority,
Single
Family
Mortgage
Program
Bonds,
Class
1
Series
2023C,
4.650%,
9/01/48
,
(WI/DD)
9/32
at
100.00
Aaa
1,638,826
Santa
Fe,
New
Mexico,
Retirement
Facilities
Revenue
Bonds,
EL
Castillo
Retirement
Residences
Project,
Series
2019A:
670
5.000%,
5/15/44
5/26
at
103.00
BB+
572,528
1,200
5.000%,
5/15/49
5/26
at
103.00
BB+
985,188
1,000
Winrock
Town
Center
Tax
Increment
Development
District
1,
Albuquerque,
New
Mexico,
Gross
Receipts
Tax
Increment
Bonds,
Senior
Lien
Series
2022,
4.250%,
5/01/40,
144A
5/29
at
103.00
N/R
843,250
Total
New
Mexico
6,452,775
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
New
York
-
9.2%
(5.6%
of
Total
Investments)
Babylon
Local
Development
Corporation
II,
New
York,
Education
Revenue
Bonds,
The
Academy
Charter
School
Project,
Series
2023A:
$
1,000
6.400%,
2/01/43
2/33
at
100.00
N/R
$
1,000,710
2,270
6.650%,
2/01/53
2/33
at
100.00
N/R
2,271,589
10,000
Battery
Park
City
Authority,
New
York,
Revenue
Bonds,
Senior
Sustainability
Series
2023A,
5.000%,
11/01/53
,
(WI/DD)
11/33
at
100.00
Aaa
11,054,200
14,325
Build
NYC
Resource
Corporation,
New
York,
Revenue
Bonds,
Albert
Einstein
College
of
Medicine,
Inc,
Series
2015,
5.500%,
9/01/45,
144A
9/25
at
100.00
N/R
14,277,011
1,350
Build
NYC
Resource
Corporation,
New
York,
Revenue
Bonds,
Albert
Einstein
College
of
Medicine,
Inc,
Series
2023,
7.250%,
6/01/55,
144A
12/30
at
100.00
N/R
1,351,310
9,320
Build
NYC
Resource
Corporation,
New
York,
Revenue
Bonds,
Family
Life
Academy
Charter
School,
Series
2020A-1,
5.500%,
6/01/55,
144A
12/30
at
100.00
N/R
7,321,419
7,390
Build
NYC
Resource
Corporation,
New
York,
Revenue
Bonds,
Family
Life
Academy
Charter
School,
Series
2020B-1,
5.000%,
6/01/55,
144A
12/30
at
100.00
N/R
5,347,552
14,215
Dormitory
Authority
of
the
State
of
New
York,
General
Revenue
Bonds,
Northwell
Health
Obligated
Group,
Series
2022A,
4.250%,
5/01/52,
(UB)
(6)
5/32
at
100.00
A-
13,919,470
785
Dormitory
Authority
of
the
State
of
New
York,
Insured
Revenue
Bonds,
Mount
Sinai
School
of
Medicine,
Series
1994A,
5.150%,
7/01/24
-
NPFG
Insured
No
Opt.
Call
Baa2
797,780
9,700
Dormitory
Authority
of
the
State
of
New
York,
Revenue
Bonds,
Columbia
University,
Series
2017A,
5.000%,
10/01/47
No
Opt.
Call
AAA
11,419,131
4,070
Dormitory
Authority
of
the
State
of
New
York,
Revenue
Bonds,
Icahn
School
of
Medicine
at
Mount
Sinai,
Refunding
Series
2015A,
5.000%,
7/01/45
7/25
at
100.00
A-
4,118,514
Dormitory
Authority
of
the
State
of
New
York,
Revenue
Bonds,
Orange
Regional
Medical
Center
Obligated
Group,
Series
2015:
2,700
5.000%,
12/01/40,
144A
6/25
at
100.00
BBB-
2,637,360
5,600
5.000%,
12/01/45,
144A
6/25
at
100.00
BBB-
5,351,528
14,950
Dormitory
Authority
of
the
State
of
New
York,
State
Personal
Income
Tax
Revenue
Bonds,
General
Purpose,
Series
2019D,
4.000%,
2/15/47
2/30
at
100.00
Aa1
14,626,781
2,095
Genesee
County
Funding
Corporation,
New
York,
Revenue
Bonds,
Rochester
Regional
Health
Project,
Series
2022A,
5.250%,
12/01/52
12/32
at
100.00
BBB+
2,176,684
2,120
Hempstead
Town
Local
Development
Corporation,
New
York,
Education
Revenue
Bonds,
The
Academy
Charter
School
Project,
Refunding
Series
2020B,
5.570%,
2/01/41
2/30
at
100.00
N/R
1,955,212
2,695
Hempstead
Town
Local
Development
Corporation,
New
York,
Education
Revenue
Bonds,
The
Academy
Charter
School
Project,
Series
2017A,
6.240%,
2/01/47
2/27
at
100.00
N/R
2,598,600
2,965
Hempstead
Town
Local
Development
Corporation,
New
York,
Education
Revenue
Bonds,
The
Academy
Charter
School
Project,
Series
2018A,
6.760%,
2/01/48
2/28
at
100.00
N/R
2,993,464
Hempstead
Town
Local
Development
Corporation,
New
York,
Education
Revenue
Bonds,
The
Academy
Charter
School
Project,
Series
2020A:
400
5.530%,
2/01/40
2/30
at
100.00
N/R
370,224
1,270
5.730%,
2/01/50
2/30
at
100.00
N/R
1,133,996
Hempstead
Town
Local
Development
Corporation,
New
York,
Education
Revenue
Bonds,
The
Academy
Charter
School
Project,
Series
2021A:
1,210
4.450%,
2/01/41
2/30
at
100.00
A2
951,919
2,380
4.600%,
2/01/51
2/30
at
100.00
A2
1,753,465
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
New
York
(continued)
Metropolitan
Transportation
Authority,
New
York,
Transportation
Revenue
Bonds,
Green
Climate
Bond
Certified
Series
2020C-1:
$
2,790
5.000%,
11/15/50
5/30
at
100.00
BBB+
$
2,892,058
3,155
5.250%,
11/15/55
5/30
at
100.00
BBB+
3,314,422
7,495
Metropolitan
Transportation
Authority,
New
York,
Transportation
Revenue
Bonds,
Green
Climate
Bond
Certified
Series
2020D-2,
4.000%,
11/15/47
11/30
at
100.00
BBB+
7,030,985
5,000
Metropolitan
Transportation
Authority,
New
York,
Transportation
Revenue
Bonds,
Green
Climate
Bond
Certified
Series
2020D-3,
4.000%,
11/15/49
11/30
at
100.00
BBB+
4,644,450
2,210
Metropolitan
Transportation
Authority,
New
York,
Transportation
Revenue
Bonds,
Refunding
Green
Climate
Certified
Series
2017C-1,
5.000%,
11/15/24
No
Opt.
Call
BBB+
2,243,658
7,520
Metropolitan
Transportation
Authority,
New
York,
Transportation
Revenue
Bonds,
Refunding
Green
Climate
Certified
Series
2020E,
4.000%,
11/15/45
11/30
at
100.00
BBB+
7,132,494
3,585
Monroe
County
Industrial
Development
Corporation,
New
York,
Revenue
Bonds,
Saint
Ann's
Community
Project,
Series
2019,
5.000%,
1/01/50
1/26
at
103.00
N/R
2,925,647
1,000
Nassau
County
Local
Economic
Assistance
Corporation,
New
York,
Revenue
Bonds,
Catholic
Health
Services
of
Long
Island
Obligated
Group
Project,
Series
2014,
5.000%,
7/01/31
7/24
at
100.00
A-
1,014,420
4,400
Nassau
County,
New
York,
General
Obligation
Bonds,
General
Improvement
Series
2022A,
4.000%,
4/01/41
4/32
at
100.00
A+
4,361,456
20,000
New
York
City
Housing
Development
Corporation,
New
York, Sustainable
Impact
Revenue
Bonds,
Williamsburg
Housing
Preservation
LP,
Series
2020A,
2.800%,
2/01/50
2/28
at
100.00
Aa2
13,795,600
5,000
New
York
City
Housing
Development
Corporation,
New
York,
House
Impact
Revenue
Bonds,
Green
Series
2023A,
4.800%,
2/01/53
8/31
at
100.00
Aa2
5,066,100
11,570
New
York
City
Municipal
Water
Finance
Authority,
New
York,
Water
and
Sewer
System
Second
General
Resolution
Revenue
Bonds,
Fiscal
2016
Series
BB-1,
5.000%,
6/15/46
6/25
at
100.00
AA+
11,805,449
10,000
New
York
City
Municipal
Water
Finance
Authority,
New
York,
Water
and
Sewer
System
Second
General
Resolution
Revenue
Bonds,
Fiscal
2023
Series
DD,
4.125%,
6/15/46,
(UB)
(6)
6/33
at
100.00
AA+
9,992,800
5
New
York
City,
New
York,
General
Obligation
Bonds,
Fiscal
Series
2005M,
5.000%,
4/01/26
-
FGIC
Insured
8/23
at
100.00
AA
5,008
28,615
New
York
Liberty
Development
Corporation,
New
York,
Liberty
Revenue
Bonds,
3
World
Trade
Center
Project,
Class
1
Series
2014,
5.000%,
11/15/44,
144A
11/24
at
100.00
N/R
28,134,268
21,840
New
York
Liberty
Development
Corporation,
New
York,
Liberty
Revenue
Bonds,
7
World
Trade
Center
Project,
Refunding
Green
Series
2022A-
CL2,
3.125%,
9/15/50
3/30
at
100.00
Aaa
16,850,215
2,560
New
York
Liberty
Development
Corporation,
New
York,
Liberty
Revenue
Bonds,
Bank
of
America
Tower
at
One
Bryant
Park
Project,
Second
Priority
Refunding
Series
2019
Class
3,
2.800%,
9/15/69
3/29
at
100.00
Baa1
2,322,893
3,500
New
York
State
Housing
Finance
Agency,
Affordable
Housing
Revenue
Bonds,
Climate
Bond
Certified/Sustainability
Series
2019P,
3.050%,
11/01/49
5/28
at
100.00
Aa2
2,596,790
6,500
New
York
State
Mortgage
Agency,
Homeowner
Mortgage
Revenue
Bonds,
Series
211,
3.750%,
10/01/43
4/27
at
100.00
Aa1
5,887,960
New
York
State
Mortgage
Agency,
Homeowner
Mortgage
Revenue
Bonds,
Series
252:
2,140
4.550%,
10/01/48
4/33
at
100.00
Aa1
2,145,222
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
New
York
(continued)
$
2,000
4.650%,
10/01/53
4/33
at
100.00
Aa1
$
2,001,360
5,000
Triborough
Bridge
and
Tunnel
Authority,
New
York,
General
Revenue
Bonds,
MTA
Bridges
&
Tunnels,
Series
2022A,
4.000%,
11/15/52
11/32
at
100.00
AA-
4,793,500
10,060
Triborough
Bridge
and
Tunnel
Authority,
New
York,
Sales
Tax
Revenue
Bonds,
MTA
Bridges
&
Tunnels,
TBTA
Capital
Lockbox-City
Sales
Tax,
Series
2022A,
4.000%,
5/15/57
11/32
at
100.00
AA+
9,697,337
7,110
TSASC
Inc.,
New
York,
Tobacco
Asset-Backed
Bonds,
Series
2006,
5.000%,
6/01/48
6/27
at
100.00
N/R
6,658,373
Total
New
York
266,740,384
North
Carolina
-
0.1%
(0.0%
of
Total
Investments)
2,150
North
Carolina
Medical
Care
Commission,
Retirement
Facilities
First
Mortgage
Revenue
Bonds,
Aldersgate
United
Retirement
Community
Inc.,
Refunding
Series
2017A,
5.000%,
7/01/47
7/27
at
100.00
N/R
1,647,975
Total
North
Carolina
1,647,975
North
Dakota
-
2.1%
(1.3%
of
Total
Investments)
9,950
Cass
County,
North
Dakota,
Health
Care
Facilities
Revenue
Bonds,
Essential
Health
Obligated
Group,
Series
2018B,
4.250%,
2/15/48
2/28
at
100.00
A-
9,304,942
4,525
Grand
Forks,
North
Dakota,
Health
Care
System
Revenue
Bonds,
Altru
Health
System
Obligated
Group,
Series
2017A,
5.000%,
12/01/42
12/27
at
100.00
Baa3
4,542,286
Grand
Forks,
North
Dakota,
Health
Care
System
Revenue
Bonds,
Altru
Health
System
Obligated
Group,
Series
2021:
1,000
3.000%,
12/01/46
-
AGM
Insured
12/31
at
100.00
BBB-
749,010
5,000
3.000%,
12/01/51
-
AGM
Insured
12/31
at
100.00
BBB-
3,606,550
1,000
Grand
Forks,
North
Dakota,
Senior
Housing
&
Nursing
Facilities
Revenue
Bonds,
Valley
Homes
and
Services
Obligated
Group,
Series
2017,
5.000%,
12/01/36
12/26
at
100.00
N/R
902,220
2,000
Horace,
Cass
County,
North
Dakota,
General
Obligation
Bonds,
Refunding
Improvement
Series
2023A,,
5.000%,
5/01/48
5/31
at
100.00
Baa2
1,975,300
3,820
North
Dakota
Housing
Finance
Agency,
Home
Mortgage
Finance
Program
Bonds,
Series
2020B,
2.500%,
7/01/44
1/30
at
100.00
Aa1
2,949,689
1,000
North
Dakota
Housing
Finance
Agency,
Home
Mortgage
Finance
Program
Bonds,
Social
Series
2022F,
4.250%,
1/01/47
1/32
at
100.00
Aa1
960,560
1,000
North
Dakota
Housing
Finance
Agency,
Home
Mortgage
Finance
Program
Bonds,
Social
Series
2023A,
4.700%,
7/01/47
7/32
at
100.00
Aa1
1,003,960
North
Dakota
Housing
Finance
Agency,
Home
Mortgage
Finance
Program
Bonds,
Social
Series
2023D:
1,500
4.500%,
7/01/43
,
(WI/DD)
7/32
at
100.00
Aa1
1,495,500
560
4.550%,
7/01/48
,
(WI/DD)
7/32
at
100.00
Aa1
560,470
Ward
County
Health
Care,
North
Dakota,
Revenue
Bonds,
Trinity
Obligated
Group,
Series
2017C:
8,300
5.000%,
6/01/38
6/28
at
100.00
BB+
7,397,707
1,700
5.000%,
6/01/43
6/28
at
100.00
BB+
1,434,154
28,050
5.000%,
6/01/53
6/28
at
100.00
BB+
22,045,056
2,535
Williston,
North
Dakota,
Multifamily
Housing
Revenue
Bonds,
Eagle
Crest
Apartments
LLC
Project,
Series
2013,
7.750%,
9/01/38
(4)
9/23
at
100.00
N/R
1,140,750
Total
North
Dakota
60,068,154
Ohio
-
8.9%
(5.3%
of
Total
Investments)
2,000
Akron,
Bath
and
Copley
Joint
Township
Hospital
District,
Ohio,
Hospital
Facilities
Revenue
Bonds,
Summa
Health
Obligated
Group,
Refunding
Series
2020,
3.000%,
11/15/40
11/30
at
100.00
BBB+
1,545,640
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Ohio
(continued)
$
70,220
Buckeye
Tobacco
Settlement
Financing
Authority,
Ohio,
Tobacco
Settlement
Asset-Backed
Revenue
Bonds,
Refunding
Senior
Lien
Capital
Appreciation
Series
2020B-3
Class
2,
0.000%,
6/01/57
6/30
at
22.36
N/R
$
8,986,756
Buckeye
Tobacco
Settlement
Financing
Authority,
Ohio,
Tobacco
Settlement
Asset-Backed
Revenue
Bonds,
Refunding
Senior
Lien
Series
2020A-2
Class
1:
52,465
3.000%,
6/01/48
6/30
at
100.00
BBB+
40,254,821
8,150
4.000%,
6/01/48
6/30
at
100.00
BBB+
7,511,855
36,785
Buckeye
Tobacco
Settlement
Financing
Authority,
Ohio,
Tobacco
Settlement
Asset-Backed
Revenue
Bonds,
Refunding
Senior
Lien
Series
2020B-2
Class
2,
5.000%,
6/01/55
6/30
at
100.00
N/R
34,240,949
Centerville,
Ohio
Health
Care
Improvement
Revenue
Bonds,
Graceworks
Lutheran
Services,
Refunding
&
Improvement
Series
2017:
2,750
5.250%,
11/01/37
11/27
at
100.00
N/R
2,584,120
3,200
5.250%,
11/01/47
11/27
at
100.00
N/R
2,788,416
5,000
County
of
Lucas,
Ohio,
Hospital
Revenue
Bonds,
ProMedica
Healthcare
Obligated
Group,
Series
2018A,
5.250%,
11/15/48
11/28
at
100.00
BB-
4,363,800
37,150
Cuyahoga
County,
Ohio,
Certificates
of
Participation,
Convention
Hotel
Project, Series
2014,
4.375%,
12/01/44,
(UB)
(6)
6/24
at
100.00
A1
37,190,122
Darke
County,
Ohio,
Hospital
Facilities
Revenue
Bonds,
Wayne
Healthcare
Project,
Series
2019A:
1,165
4.000%,
9/01/40
9/29
at
100.00
BB+
1,006,280
1,750
4.000%,
9/01/45
9/29
at
100.00
BB+
1,424,028
2,000
5.000%,
9/01/49
9/29
at
100.00
BB+
1,834,600
6,840
Franklin
County
Convention
Facilities
Authority,
Ohio,
Hotel
Project
Revenue
Bonds,
Greater
Columbus
Convention
Center
Hotel
Expansion
Project,
Series
2019,
5.000%,
12/01/51
12/29
at
100.00
BBB-
6,443,006
4,000
Franklin
County,
Ohio,
Revenue
Bonds,
Trinity
Health
Credit
Group,
Series
2017A,
3.250%,
12/01/42
12/27
at
100.00
AA-
3,418,240
Middletown
City
School
District,
Butler
County,
Ohio,
General
Obligation
Bonds,
Refunding
Series
2007:
4,380
5.250%,
12/01/27
-
AGM
Insured
No
Opt.
Call
A1
4,760,622
6,000
5.250%,
12/01/31
-
AGM
Insured
No
Opt.
Call
A1
6,890,700
12,000
Muskingum
County,
Ohio,
Hospital
Facilities
Revenue
Bonds,
Genesis
HealthCare
System
Obligated
Group
Project,
Series
2013,
5.000%,
2/15/48
8/23
at
100.00
Ba2
11,094,120
8,500
Ohio
Air
Quality
Development
Authority,
Ohio,
Air
Quality
Development
Revenue
Bonds,
FirstEnergy
Generation
Corporation
Project,
Series
2009A,
5.700%,
8/01/23
(4)
No
Opt.
Call
N/R
85
1,050
Ohio
Air
Quality
Development
Authority,
Ohio,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Generation
Corporation
Project,
Refunding
Series
2009B,
3.100%,
9/01/23
(4)
No
Opt.
Call
N/R
11
2,020
Ohio
Air
Quality
Development
Authority,
Ohio,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Nuclear
Generation
Corporation
Project,
Refunding
Series
2010B,
3.750%,
6/01/33
(4)
No
Opt.
Call
N/R
20
1,000
Ohio
Air
Quality
Development
Authority,
Ohio,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Nuclear
Generation
Project,
Refunding
Series
2005B,
3.125%,
1/01/34
(4)
No
Opt.
Call
N/R
10
25,880
Ohio
Air
Quality
Development
Authority,
Ohio,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Nuclear
Generation
Project,
Refunding
Series
2009A,
4.750%,
6/01/33,
(Mandatory
Put
6/01/22)
No
Opt.
Call
BBB-
24,955,049
490
Ohio
Higher
Educational
Facility
Commission,
Senior
Hospital
Parking
Revenue
Bonds,
University
Circle
Incorporated
2020
Project,
Series
2020,
5.000%,
1/15/50
1/30
at
100.00
A3
487,138
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Ohio
(continued)
$
1,240
Ohio
State,
Turnpike
Revenue
Bonds,
Ohio
Turnpike
and
Infrastructutre
Commission
Infrastructure
Projects,
Junior
Lien,
Capital
Appreciation
Series
2013A-3,
5.800%,
2/15/36
2/31
at
100.00
A+
$
1,467,540
1,610
Ohio
Water
Development
Authority,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Nuclear
Generating
Corporation
Project,
Refunding
Series
2010C,
4.000%,
6/01/33
(4)
No
Opt.
Call
N/R
16
1,130
Ohio
Water
Development
Authority,
Pollution
Control
Revenue
Refunding
Bonds,
FirstEnergy
Nuclear
Generating
Corporation
Project,
Series
2006B,
4.000%,
12/01/33
(4)
No
Opt.
Call
N/R
11
20,505
Ohio
Water
Development
Authority,
Pollution
Control
Revenue
Refunding
Bonds,
FirstEnergy
Nuclear
Generating
Corporation
Project,
Series
2009A,
4.750%,
6/01/33,
(Mandatory
Put
6/01/22)
No
Opt.
Call
BBB-
19,772,151
20,480
Ohio
Water
Development
Authority,
Pollution
Control
Revenue
Refunding
Bonds,
FirstEnergy
Nuclear
Generating
Corporation
Project,
Series
2010B,
4.750%,
6/01/33,
(Mandatory
Put
6/01/22)
No
Opt.
Call
BBB-
19,748,045
3,000
Port
of
Greater
Cincinnati
Development
Authority,
Ohio,
Special
Obligation
Tax
Increment
Financing
Revenue
Bonds,
Cooperative
Township
Public
Parking
Project,
Gallery
at
Kenwood,
Senior
Lien
Series
2019A,
5.000%,
11/01/51
11/30
at
100.00
N/R
2,464,230
1,330
Tuscarawas
County
Economic
Development
and
Finance
Alliance,
Ohio,
Higher
Education
Facilities
Revenue
Bonds,
Ashland
University,
Refunding
&
Improvement
Series
2015,
6.000%,
3/01/45
3/25
at
100.00
N/R
1,321,953
9,495
Washington
County,
Ohio,
Hospital
Facilities
Revenue
Bonds,
Memorial
Health
System
Obligated
Group,
Series
2022,
6.750%,
12/01/52
12/32
at
100.00
N/R
9,719,652
Total
Ohio
256,273,986
Oklahoma
-
1.0%
(0.6%
of
Total
Investments)
Oklahoma
Development
Finance
Authority,
Health
System
Revenue
Bonds,
OU
Medicine
Project,
Series
2018B:
3,965
5.500%,
8/15/52
8/28
at
100.00
BB-
3,949,219
20,510
5.500%,
8/15/57
8/28
at
100.00
BB-
20,197,838
Oklahoma
Development
Finance
Authority,
Health
System
Revenue
Bonds,
OU
Medicine
Project,
Taxable
Series
2022:
1,150
5.500%,
8/15/41
8/32
at
100.00
N/R
1,106,473
1,390
5.500%,
8/15/44
8/32
at
100.00
N/R
1,326,699
2,340
Tulsa
County
Industrial
Authority,
Oklahoma,
Senior
Living
Community
Revenue
Bonds,
Montereau,
Inc
Project,
Refunding
Series
2017,
5.250%,
11/15/45
11/25
at
102.00
BBB-
2,285,712
Total
Oklahoma
28,865,941
Oregon
-
0.1%
(0.1%
of
Total
Investments)
Clackamas
County
Hospital
Facility
Authority,
Oregon,
Revenue
Bonds,
Rose
Villa
Inc.,
Series
2020A:
500
5.125%,
11/15/40
11/25
at
102.00
N/R
474,930
220
5.250%,
11/15/50
11/25
at
102.00
N/R
202,655
315
5.375%,
11/15/55
11/25
at
102.00
N/R
291,227
Multnomah
County
Hospital
Facilities
Authority,
Oregon,
Revenue
Bonds,
Mirabella
South
Waterfront,
Refunding
Series
2014A:
1,000
5.400%,
10/01/44,
(Pre-refunded
10/01/24)
10/24
at
100.00
N/R (5)
1,024,540
800
5.500%,
10/01/49,
(Pre-refunded
10/01/24)
10/24
at
100.00
N/R (5)
820,536
Total
Oregon
2,813,888
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Pennsylvania
-
5.0%
(3.0%
of
Total
Investments)
$
14,790
Allegheny
County
Hospital
Development
Authority,
Pennsylvania,
Revenue
Bonds,
Allegheny
Health
Network
Obligated
Group
Issue,
Series
2018A,
4.000%,
4/01/44
4/28
at
100.00
A
$
13,339,545
2,540
Allentown
Neighborhood
Improvement
Zone
Development
Authority,
Pennsylvania,
Tax
Revenue
Bonds,
City
Center
Refunding
Project,
Series
2017,
5.000%,
5/01/42,
144A
5/27
at
100.00
Ba3
2,542,997
Beaver
County
Industrial
Development
Authority,
Pennsylvania,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Generation
Project,
Refunding
Series
2006A:
13,235
4.375%,
1/01/35,
(Mandatory
Put
7/01/33)
No
Opt.
Call
BBB-
13,235,000
3,145
3.500%,
4/01/41
(4)
No
Opt.
Call
N/R
31
1,245
Beaver
County
Industrial
Development
Authority,
Pennsylvania,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Nuclear
Generation
Project,
Refunding
Series
2005A,
4.000%,
1/01/35
(4)
No
Opt.
Call
N/R
12
1,240
Beaver
County
Industrial
Development
Authority,
Pennsylvania,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Nuclear
Generation
Project,
Series
2006B,
3.500%,
12/01/35
(4)
No
Opt.
Call
N/R
12
9,365
Beaver
County
Industrial
Development
Authority,
Pennsylvania,
Pollution
Control
Revenue
Refunding
Bonds,
FirstEnergy
Generation
Project,
Series
2008B,
3.750%,
10/01/47
4/31
at
100.00
BBB-
6,892,827
20,970
Berks
County
Industrial
Development
Authority,
Pennsylvania,
Health
System
Revenue
Bonds,
Tower
Health
Project,
Series
2017,
5.000%,
11/01/50
11/27
at
100.00
B
13,604,497
Bucks
County
Industrial
Development
Authority,
Pennsylvania,
Revenue
Bonds,
School
Lane
Charter
School
Project,
Series
2016:
2,410
5.125%,
3/15/36
3/27
at
100.00
BBB-
2,456,706
6,420
5.125%,
3/15/46
3/27
at
100.00
BBB-
6,426,998
1,000
Butler
County
Hospital
Authority,
Pennsylvania,
Hospital
Revenue
Bonds,
Butler
Health
System
Project,
Series
2015A,
5.000%,
7/01/39
7/25
at
100.00
Baa3
943,680
10,850
Commonwealth
Financing
Authority,
Pennsylvania,
State
Appropriation
Lease
Bonds,
Master
Settlement,
Series
2018,
4.000%,
6/01/39
-
AGM
Insured,
(UB)
(6)
6/28
at
100.00
A1
10,703,525
Cumberland
County
Municipal
Authority,
Pennsylvania,
Revenue
Bonds,
Diakon
Lutheran
Social
Ministries
Project,
Series
2015:
395
5.000%,
1/01/29,
(Pre-refunded
1/01/25)
1/25
at
100.00
N/R (5)
404,365
170
5.000%,
1/01/29,
(Pre-refunded
1/01/25)
1/25
at
100.00
N/R (5)
174,031
435
5.000%,
1/01/29
1/25
at
100.00
BBB+
437,928
2,500
Dubois
Hospital
Authority,
Pennsylvania,
Hospital
Revenue
Bonds,
Penn
Highlands
Healthcare,
Series
2018,
5.000%,
7/15/48
1/28
at
100.00
A-
2,552,125
1,250
Lancaster
County
Hospital
Authority,
Pennsylvania,
Revenue
Bonds,
Landis
Homes
Retirement
Community
Project,
Refunding
Series
2015A,
5.000%,
7/01/45
7/25
at
100.00
BBB-
1,133,963
820
Lehigh
County
Authority,
Pennsylvania,
Water
and
Sewer
Revenue
Bonds,
Allentown
Concession,
Series
2013A,
5.125%,
12/01/47,
(Pre-
refunded
12/01/23)
12/23
at
100.00
N/R (5)
824,969
1,750
McCandless
Industrial
Development
Authority,
Pennsylvania,
La
Roche
University
Revenue
Bonds,
Series
A
and
B
of
2022,
6.750%,
12/01/46
12/32
at
100.00
N/R
1,653,855
Montgomery
County
Industrial
Development
Authority,
Pennsylvania,
Health
System
Revenue
Bonds,
Albert
Einstein
Healthcare
Network
Issue,
Series
2015A:
11,030
5.250%,
1/15/45,
(Pre-refunded
1/15/25)
1/25
at
100.00
N/R (5)
11,345,458
1,200
5.250%,
1/15/46,
(Pre-refunded
1/15/25)
1/25
at
100.00
N/R (5)
1,234,320
3,500
Pennsylvania
Housing
Finance
Agency,
Single
Family
Mortgage
Revenue
Bonds,
Series
2019-131A,
3.100%,
10/01/44
4/29
at
100.00
AA+
2,790,445
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Pennsylvania
(continued)
$
3,415
Pennsylvania
Housing
Finance
Agency,
Single
Family
Mortgage
Revenue
Bonds,
Social
Series
2021-135A,
2.500%,
10/01/50
10/30
at
100.00
AA+
$
2,228,049
13,550
Pennsylvania
Turnpike
Commission,
Oil
Franchise
Tax
Revenue
Bonds,
Senior
Series
2018A,
5.250%,
12/01/44
12/28
at
100.00
Aa3
14,482,647
3,705
Pennsylvania
Turnpike
Commission,
Turnpike
Revenue
Bonds,
Series
2015A-1,
5.000%,
12/01/45
6/25
at
100.00
A1
3,779,285
11,000
Pennsylvania
Turnpike
Commission,
Turnpike
Revenue
Bonds,
Subordinate
Series
2009C,
6.250%,
6/01/33
-
AGM
Insured
6/26
at
100.00
A1
11,995,940
15,000
Pennsylvania
Turnpike
Commission,
Turnpike
Revenue
Bonds,
Subordinate
Series
2015B-1,
5.000%,
12/01/45
12/25
at
100.00
A3
15,275,550
5,000
Pennsylvania
Turnpike
Commission,
Turnpike
Revenue
Bonds,
Subordinate
Series
2019A,
4.000%,
12/01/49
12/29
at
100.00
A3
4,823,800
Total
Pennsylvania
145,282,560
Puerto
Rico
-
7.2%
(4.4%
of
Total
Investments)
4,934
Cofina
Class
2
Trust
Tax-Exempt
Class
2047,
Puerto
Rico.
Unit
Exchanged
From
Cusip
74529JAN5,
0.000%,
8/01/47
No
Opt.
Call
N/R
1,413,425
9,761
Cofina
Class
2
Trust
Tax-Exempt
Class
2054,
Puerto
Rico.
Unit
Exchanged
From
Cusip
74529JAP0,
0.000%,
8/01/54
No
Opt.
Call
N/R
2,084,837
3,780
Puerto
Rico
Aqueduct
and
Sewerage
Authority,
Revenue
Bonds,
Refunding
Senior
Lien
Forward
Delivery
Series
2022A,
5.000%,
7/01/37,
144A
7/32
at
100.00
N/R
3,812,281
Puerto
Rico
Aqueduct
and
Sewerage
Authority,
Revenue
Bonds,
Refunding
Senior
Lien
Series
2020A:
2,000
5.000%,
7/01/30,
144A
No
Opt.
Call
N/R
2,070,780
6,000
5.000%,
7/01/35,
144A
7/30
at
100.00
N/R
6,083,700
19,925
5.000%,
7/01/47,
144A
7/30
at
100.00
N/R
19,731,728
Puerto
Rico
Aqueduct
and
Sewerage
Authority,
Revenue
Bonds,
Refunding
Senior
Lien
Series
2021B:
7,500
5.000%,
7/01/33,
144A
7/31
at
100.00
N/R
7,671,825
7,510
4.000%,
7/01/42,
144A
7/31
at
100.00
N/R
6,623,144
8,070
4.000%,
7/01/47,
144A
7/31
at
100.00
N/R
6,880,886
145
Puerto
Rico
Public
Finance
Corporation,
Commonwealth
Appropriation
Bonds,
Series
1998A,
5.125%,
6/01/24
-
AMBAC
Insured
No
Opt.
Call
AA+
147,055
Puerto
Rico
Sales
Tax
Financing
Corporation,
Sales
Tax
Revenue
Bonds,
Restructured
2018A-1:
2,000
0.000%,
7/01/29
7/28
at
98.64
N/R
1,564,120
668
4.500%,
7/01/34
7/25
at
100.00
N/R
663,992
51,406
0.000%,
7/01/46
7/28
at
41.38
N/R
14,727,305
26,156
0.000%,
7/01/51
7/28
at
30.01
N/R
5,586,921
13,340
4.750%,
7/01/53
7/28
at
100.00
N/R
12,666,063
28,314
5.000%,
7/01/58
7/28
at
100.00
N/R
27,627,669
723
Puerto
Rico
Sales
Tax
Financing
Corporation,
Sales
Tax
Revenue
Bonds,
Restructured
Cofina
Project
Series
2019B-2,
4.536%,
7/01/53
7/28
at
100.00
N/R
662,810
Puerto
Rico
Sales
Tax
Financing
Corporation,
Sales
Tax
Revenue
Bonds,
Taxable
Restructured
Cofina
Project
Series
2019A-2:
8,056
4.329%,
7/01/40
7/28
at
100.00
N/R
7,603,494
19,384
4.329%,
7/01/40
7/28
at
100.00
N/R
18,295,201
9,495
4.784%,
7/01/58
7/28
at
100.00
N/R
8,963,375
Puerto
Rico,
General
Obligation
Bonds,
Restructured
Series
2022A-1:
3,801
5.625%,
7/01/29
No
Opt.
Call
N/R
4,067,488
5,692
5.750%,
7/01/31
No
Opt.
Call
N/R
6,214,867
21,437
0.000%,
7/01/33
7/31
at
89.94
N/R
13,092,862
10,314
4.000%,
7/01/33
7/31
at
103.00
N/R
9,809,862
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Puerto
Rico
(continued)
$
8,608
4.000%,
7/01/35
7/31
at
103.00
N/R
$
7,973,504
10,689
4.000%,
7/01/37
7/31
at
103.00
N/R
9,606,204
3,646
4.000%,
7/01/41
7/31
at
103.00
N/R
3,139,899
986
4.000%,
7/01/46
7/31
at
103.00
N/R
823,951
Total
Puerto
Rico
209,609,248
Rhode
Island
-
2.2%
(1.3%
of
Total
Investments)
1,000
Rhode
Island
Health
and
Educational
Building
Corporation,
Revenue
Bonds,
Care
New
England
Health
System,
Series
2013A,
6.000%,
9/01/33,
(Pre-refunded
9/01/23)
9/23
at
100.00
N/R (5)
1,001,980
3,430
Rhode
Island
Housing
&
Mortgage
Finance
Corporation,
Homeownership
Opportunity
Bond
Program,
2019
Series
71,
3.100%,
10/01/44
4/29
at
100.00
AA+
2,914,985
11,005
Rhode
Island
Housing
&
Mortgage
Finance
Corporation,
Homeownership
Opportunity
Bond
Program,
2022
Series
76A,
2.550%,
10/01/42
4/31
at
100.00
AA+
8,328,474
295,135
Rhode
Island
Tobacco
Settlement
Financing
Corporation,
Tobacco
Settlement
Asset-Backed
Bonds,
Series
2007A,
0.000%,
6/01/52
8/23
at
18.23
CCC-
49,083,902
2,600
Rhode
Island
Tobacco
Settlement
Financing
Corporation,
Tobacco
Settlement
Asset-Backed
Bonds,
Series
2015B,
4.500%,
6/01/45
6/25
at
100.00
N/R
2,565,160
Total
Rhode
Island
63,894,501
South
Carolina
-
2.5%
(1.5%
of
Total
Investments)
7,600
Piedmont
Municipal
Power
Agency,
South
Carolina,
Electric
Revenue
Bonds,
Series
2004A-2,
0.000%,
1/01/31
-
AMBAC
Insured
No
Opt.
Call
A-
5,722,572
1,990
South
Carolina
Housing
Finance
and
Development
Authority,
Mortgage
Revenue
Bonds,
Series
2022B,
4.350%,
7/01/47
7/31
at
100.00
Aaa
1,928,151
1,000
South
Carolina
Housing
Finance
and
Development
Authority,
Mortgage
Revenue
Bonds,
Series
2023A,
4.900%,
7/01/48
7/32
at
100.00
Aaa
1,020,390
South
Carolina
Jobs-Economic
Development
Authority,
Economic
Development
Revenue
Bonds,
Bishop
Gadsden
Episcopal
Retirement
Community,
Series
2019A:
890
5.000%,
4/01/49
4/26
at
103.00
BBB-
776,222
1,165
4.000%,
4/01/54
4/26
at
103.00
BBB-
792,503
1,630
5.000%,
4/01/54
4/26
at
103.00
BBB-
1,386,478
South
Carolina
Jobs-Economic
Development
Authority,
Economic
Development
Revenue
Bonds,
Hilton
Head
Christian
Academy,
Series
2020:
405
5.000%,
1/01/40,
144A
1/30
at
100.00
N/R
370,571
1,000
5.000%,
1/01/55,
144A
1/30
at
100.00
N/R
840,840
South
Carolina
Jobs-Economic
Development
Authority,
Health
Facilities
Revenue
Bonds,
Lutheran
Homes
of
South
Carolina
Inc.,
Refunding
Series
2017B:
1,000
5.000%,
5/01/37
8/23
at
104.00
N/R
871,500
750
5.000%,
5/01/42
8/23
at
104.00
N/R
614,940
41,325
South
Carolina
Public
Service
Authority,
Santee
Cooper
Revenue
Obligations,
Refunding
&
Improvement
Series
2015A,
5.000%,
12/01/50
6/25
at
100.00
A-
41,534,105
7,565
South
Carolina
Public
Service
Authority,
Santee
Cooper
Revenue
Obligations,
Refunding
&
Improvement
Series
2020A,
3.000%,
12/01/41
-
BAM
Insured
12/30
at
100.00
A3
6,145,730
7,085
South
Carolina
Public
Service
Authority,
Santee
Cooper
Revenue
Obligations,
Refunding
Series
2014C,
5.000%,
12/01/46
12/24
at
100.00
A-
7,108,026
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
South
Carolina
(continued)
$
5,000
South
Carolina
Public
Service
Authority,
Santee
Cooper
Revenue
Obligations,
Refunding
Series
2022A,
4.000%,
12/01/52
6/32
at
100.00
A-
$
4,546,150
Total
South
Carolina
73,658,178
South
Dakota
-
1.1%
(0.7%
of
Total
Investments)
12,435
South
Dakota
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Avera
Health,
Refunding
Series
2017,
5.000%,
7/01/46
7/27
at
100.00
A1
12,646,519
3,765
South
Dakota
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Regional
Health,
Refunding
Series
2017,
5.000%,
9/01/40
9/27
at
100.00
A1
3,854,871
6,000
South
Dakota
Housing
Development
Authority,
Homeownership
Mortgage
Revenue
Bonds,
Series
2022B,
2.500%,
11/01/42
11/30
at
100.00
AAA
4,530,540
South
Dakota
Housing
Development
Authority,
Homeownership
Mortgage
Revenue
Bonds,
Social
Series
2023A:
6,250
4.350%,
11/01/43,
(UB)
(6)
11/31
at
100.00
AAA
6,265,687
4,000
4.550%,
5/01/48,
(UB)
(6)
11/31
at
100.00
AAA
4,008,520
Total
South
Dakota
31,306,137
Tennessee
-
0.5%
(0.3%
of
Total
Investments)
1,350
Chattanooga-Hamilton
County
Hospital
Authority,
Tennessee,
Hospital
Revenue
Bonds,
Erlanger
Health
System,
Refunding
Series
2014A,
5.000%,
10/01/39
10/24
at
100.00
Baa2
1,355,710
1,490
Knox
County
Health,
Educational
and
Housing
Facility
Board,
Tennessee,
Hospital
Revenue
Bonds,
East
Tennessee
Children's
Hospital,
Series
2019,
4.000%,
11/15/48
2/29
at
100.00
A
1,357,569
2,645
Memphis/Shelby
County
Economic
Development
Growth
Engine
Industrial
Development
Board,
Tennessee,
Tax
Increment
Revenue
Bonds,
Graceland
Project,
Senior
Series
2017A,
5.500%,
7/01/37
(4)
7/27
at
100.00
N/R
1,842,031
4,100
Tennergy
Corporation,
Tennessee,
Gas
Revenue
Bonds,
Series
2022A,
5.500%,
10/01/53,
(Mandatory
Put
12/01/30)
9/30
at
100.10
Baa1
4,351,207
855
Tennessee
Housing
Development
Agency,
Residential
Finance
Program
Bonds,
Series
2020-3A,
2.550%,
1/01/45
7/29
at
100.00
AA+
666,225
1,500
Tennessee
Housing
Development
Agency,
Residential
Finance
Program
Bonds,
Social
Series
2023-2A,
4.550%,
7/01/48,
(UB)
(6)
7/32
at
100.00
AA+
1,487,190
10,000
The
Health
and
Educational
Facilities
Board
of
the
City
of
Franklin,
Tennessee,
Revenue
Bonds,
Provision
Cares
Proton
Therapy
Center,
Nashville
Project,
Series
2017A,
7.500%,
6/01/47,
144A
(4)
6/27
at
100.00
N/R
2,200,000
Total
Tennessee
13,259,932
Texas
-
12.2%
(7.4%
of
Total
Investments)
3,465
Aubrey,
Denton
County,
Texas,
Special
Assessment
Revenue
Bonds,
Jackson
Ridge
Public
Improvement
District
Phase
1
Project,
Series
2015,
7.250%,
9/01/45
9/23
at
103.00
N/R
3,572,172
2,910
Aubrey,
Denton
County,
Texas,
Special
Assessment
Revenue
Bonds,
Jackson
Ridge
Public
Improvement
District
Phases
2-3
Major
Improvements
Project,
Series
2015,
8.250%,
9/01/40
9/23
at
103.00
N/R
2,999,628
5,480
Austin,
Texas,
Electric
Utility
System
Revenue
Bonds,
Refunding
Series
2015A,
5.000%,
11/15/45
11/25
at
100.00
AA-
5,594,368
2,500
Board
of
Managers,
Joint
Guadalupe
County-Seguin
City
Hospital,
Texas,
Hospital
Mortgage
Revenue
Bonds,
Refunding
&
Improvement
Series
2015,
5.000%,
12/01/45
12/25
at
100.00
BB
2,291,500
2,225
Celina,
Texas,
Special
Assessment
Revenue
Bonds,
Sutton
Fields
II
Public
Improvement
District
Neighborhood
Improvement
Area
1
Project,
Series
2015,
7.250%,
9/01/45
9/23
at
103.00
N/R
2,289,169
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Texas
(continued)
$
3,960
Celina,
Texas,
Special
Assessment
Revenue
Bonds,
Sutton
Fields
II
Public
Improvement
District
Neighborhood
Improvement
Areas
2-5
Major
Improvement
Project,
Series
2015,
8.250%,
9/01/40
9/23
at
103.00
N/R
$
4,081,968
360
Celina,
Texas,
Special
Assessment
Revenue
Bonds,
Wells
South
Public
Improvement
District
Neighborhood
Improvement
Area
1
Project,
Series
2015,
6.250%,
9/01/45
9/24
at
100.00
N/R
363,776
3,940
Central
Texas
Regional
Mobility
Authority,
Revenue
Bonds,
Senior
Lien
Series
2020A,
5.000%,
1/01/49
1/30
at
100.00
A-
4,093,699
3,335
Central
Texas
Regional
Mobility
Authority,
Revenue
Bonds,
Senior
Lien
Series
2020E,
5.000%,
1/01/45
1/30
at
100.00
A-
3,483,141
13,685
Central
Texas
Regional
Mobility
Authority,
Revenue
Bonds,
Senior
Lien,
Series
2015A,
5.000%,
1/01/45,
(Pre-refunded
7/01/25)
7/25
at
100.00
A3 (5)
14,163,427
6,375
Central
Texas
Regional
Mobility
Authority,
Revenue
Bonds,
Senior
Lien,
Series
2016,
3.375%,
1/01/41
1/26
at
100.00
A-
5,369,790
Clifton
Higher
Education
Finance
Corporation,
Texas,
Education
Revenue
Bonds,
Uplift
Education
Charter
School,
Series
2013A:
765
4.350%,
12/01/42
8/23
at
100.00
BBB-
700,312
685
4.400%,
12/01/47
8/23
at
100.00
BBB-
611,129
4,000
Clifton
Higher
Education
Finance
Corporation,
Texas,
Education
Revenue
Bonds,
Uplift
Education
Charter
School,
Series
2015A,
5.000%,
12/01/45
6/25
at
100.00
BBB-
4,000,960
Club
Municipal
Management
District
1,
Texas,
Special
Assessment
Revenue
Bonds,
Improvement
Area
1
Project,
Series
2016:
445
5.750%,
9/01/28
9/23
at
103.00
N/R
458,679
710
6.500%,
9/01/46
9/23
at
103.00
N/R
731,783
2,520
Decatur
Hospital
Authority,
Texas,
Revenue
Bonds,
Wise
Regional
Health
System,
Series
2013A,
6.375%,
9/01/42,
(Pre-refunded
9/01/23)
9/23
at
100.00
N/R (5)
2,525,645
400
Decatur
Hospital
Authority,
Texas,
Revenue
Bonds,
Wise
Regional
Health
System,
Series
2014A,
5.250%,
9/01/44
9/24
at
100.00
BB+
387,600
1,255
Fort
Bend
County
Industrial
Development
Corporation,
Texas,
Revenue
Bonds,
NRG
Energy
Inc.
Project,
Series
2012A.
RMKT,
4.750%,
5/01/38
8/23
at
100.00
Baa2
1,233,326
10,010
Fort
Bend
County
Industrial
Development
Corporation,
Texas,
Revenue
Bonds,
NRG
Energy
Inc.
Project,
Series
2012B,
4.750%,
11/01/42
8/23
at
100.00
Baa2
9,751,642
Grand
Parkway
Transportation
Corporation,
Texas,
System
Toll
Revenue
Bonds,
Subordinate
Lien
Series
2013B:
20,000
5.250%,
10/01/51,
(Pre-refunded
10/01/23)
10/23
at
100.00
N/R (5)
20,061,200
10,000
5.000%,
4/01/53,
(Pre-refunded
10/01/23),
(UB)
10/23
at
100.00
N/R (5)
10,026,500
Grand
Parkway
Transportation
Corporation,
Texas,
System
Toll
Revenue
Bonds,
Tender
Option
Bond
Trust
2015-XF0228:
5,470
6.318%,
11/01/44,
(Pre-refunded
10/01/23),
144A,
(IF)
(6)
10/23
at
100.00
N/R (5)
5,528,201
2,550
Greater
Texoma
Utility
Authority,
Texas,
Contract
Revenue
Bonds,
City
of
Sherman
Project
Series
2023A,
4.375%,
10/01/53
-
BAM
Insured
10/32
at
100.00
AA
2,530,671
4,255
Harris
County
Cultural
Education
Facilities
Finance
Corporation,
Texas,
Revenue
Bonds,
Houston
Methodist
Hospital
System,
Series
2015,
5.000%,
12/01/45
6/25
at
100.00
AA
4,320,697
5,175
Harris
County
Flood
Control
District,
Texas,
General
Obligation
Bonds,
Refunding
Improvement,
Green
Series
2023A,
4.000%,
9/15/48
9/33
at
100.00
Aaa
5,079,987
4,080
Harris
County,
Texas,
General
Obligtion
Toll
Road
Revenue
Bonds,
Tender
Option
Bond
Trust
2015-XF0074,
6.306%,
8/15/32
-
AGM
Insured,
144A,
(IF)
No
Opt.
Call
AAA
6,516,413
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Texas
(continued)
$
6,000
Harris
County-Houston
Sports
Authority,
Texas,
Revenue
Bonds,
Capital
Appreciation
Refunding
Senior
Lien
Series
2014A,
0.000%,
11/15/48
11/31
at
44.13
A1
$
1,726,380
6,000
Harris
County-Houston
Sports
Authority,
Texas,
Revenue
Bonds,
Refunding
Senior
Lien
Series
2014A,
5.000%,
11/15/53
11/24
at
100.00
BBB
6,029,160
Harris
County-Houston
Sports
Authority,
Texas,
Revenue
Bonds,
Third
Lien
Series
2004A-3:
14,055
0.000%,
11/15/34
-
NPFG
Insured
11/24
at
55.69
BB
7,368,474
1,940
0.000%,
11/15/34,
(Pre-refunded
11/15/24)
-
NPFG
Insured
11/24
at
55.69
Baa2 (5)
1,031,033
Hidalgo
County
Regional
Mobility
Authority,
Texas,
Toll
and
Vehicle
Registration
Fee
Revenue
Bonds,
Senior
Lien
Series
2022A:
2,295
0.000%,
12/01/42
12/31
at
68.27
BBB-
808,092
3,000
0.000%,
12/01/43
12/31
at
65.48
BBB-
995,520
3,000
0.000%,
12/01/44
12/31
at
62.57
BBB-
940,980
4,000
0.000%,
12/01/45
12/31
at
59.85
BBB-
1,185,720
7,165
0.000%,
12/01/46
12/31
at
57.36
BBB-
2,006,773
7,580
0.000%,
12/01/47
12/31
at
55.10
BBB-
2,005,516
7,095
0.000%,
12/01/48
12/31
at
52.91
BBB-
1,773,041
7,550
0.000%,
12/01/49
12/31
at
50.78
BBB-
1,781,649
5,140
0.000%,
12/01/50
12/31
at
48.73
BBB-
1,143,907
4,000
0.000%,
12/01/51
12/31
at
46.73
BBB-
836,800
5,000
Houston
Higher
Education
Finance
Corporation,
Texas,
Education
Revenue
Bonds,
KIPP,
Inc.,
Refunding
Series
2015,
4.000%,
8/15/44
8/25
at
100.00
AAA
4,659,150
Houston,
Texas,
Hotel
Occupancy
Tax
and
Special
Revenue
Bonds,
Convention
and
Entertainment
Project,
Series
2001B:
4,090
0.000%,
9/01/26
-
AMBAC
Insured
No
Opt.
Call
A1
3,643,577
4,865
0.000%,
9/01/27
-
AGM
Insured
No
Opt.
Call
A1
4,187,062
4,715
Houston,
Texas,
Hotel
Occupancy
Tax
and
Special
Revenue
Bonds,
Refunding
Series
2015,
5.000%,
9/01/40
9/24
at
100.00
A
4,724,571
17,000
Houston,
Texas,
Water
and
Sewerage
System
Revenue
Bonds,
Refunding
Junior
Lien
Series
2002A,
5.750%,
12/01/32
-
AGM
Insured,
(ETM)
No
Opt.
Call
A1 (5)
21,395,180
940
Kerrville
Health
Facilities
Development
Corporation,
Texas,
Revenue
Bonds,
Sid
Peterson
Memorial
Hospital
Project,
Series
2015,
5.000%,
8/15/30
8/25
at
100.00
A-
964,177
6,665
Lamar
Consolidated
Independent
School
District,
Fort
Bend
County,
Texas,
General
Obligation
Bonds,
Schoolhouse
Series
2023A,
5.000%,
2/15/58,
(UB)
,
(WI/DD)
2/33
at
100.00
AAA
7,165,142
1,000
Lower
Colorado
River
Authority,
Texas,
Transmission
Contract
Revenue
Bonds,
LCRA
Transmission
Services
Corporation
Project,
Refunding
Series
2015,
5.000%,
5/15/45
5/25
at
100.00
A
1,014,040
McCamey
County
Hospital
District,
Texas,
General
Obligation
Bonds,
Series
2013:
3,095
5.750%,
12/01/33
12/25
at
100.00
B1
3,150,710
3,125
6.125%,
12/01/38
12/25
at
100.00
B1
3,168,562
1,000
Montgomery
County
Toll
Road
Authority,
Texas,
Toll
Road
Revenue
Bonds,
Senior
Lien
Series
2018,
5.000%,
9/15/48
9/25
at
100.00
BBB-
999,980
New
Hope
Cultural
Education
Facilities
Finance
Corporation,
Texas,
Retirement
Facility
Revenue
Bonds,
Legacy
at
Willow
Bend
Project,
Series
2016:
2,335
5.000%,
11/01/46
11/23
at
103.00
BB
1,831,364
6,015
5.000%,
11/01/51
11/23
at
103.00
BB
4,583,670
745
New
Hope
Cultural
Education
Facilities
Finance
Corporation,
Texas,
Retirement
Facility
Revenue
Bonds,
Wesleyan
Homes,
Inc.
Project,
Series
2014,
5.500%,
1/01/43
1/25
at
100.00
N/R
610,237
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Texas
(continued)
$
210
New
Hope
Cultural
Education
Facilities
Finance
Corporation,
Texas,
Student
Housing
Revenue
Bonds,
CHF-Collegiate
Housing
Corpus
Christi
II,
L.L.C.-Texas
A&M
University-Corpus
Christi
Project,
Series
2016A,
5.000%,
4/01/48,
(Pre-refunded
4/01/26)
4/26
at
100.00
N/R (5)
$
219,664
4,530
New
Hope
Cultural
Education
Facilities
Finance
Corporation,
Texas,
Student
Housing
Revenue
Bonds,
CHF-Collegiate
Housing
Foundation
-
College
Station
I
LLC
-
Texas
A&M
University
Project,
Series
2014A,
4.100%,
4/01/34
-
AGM
Insured
4/24
at
100.00
A1
4,542,639
820
New
Hope
Cultural
Education
Facilities
Finance
Corporation,
Texas,
Student
Housing
Revenue
Bonds,
CHF-Collegiate
Housing
Foundation
-
San
Antonio
1,
L.L.C.
-
Texas
A&M
University
-
San
Antonio
Project,
Series
2016A,
5.000%,
4/01/48,
(Pre-refunded
4/01/26)
4/26
at
100.00
N/R (5)
855,604
New
Hope
Cultural
Education
Facilities
Finance
Corporation,
Texas,
Student
Housing
Revenue
Bonds,
CHF-Collegiate
Housing
Foundation
-
Stephenville
II,
L.L.C.
-
Tarleton
State
University
Project,
Series
2014A:
1,000
5.000%,
4/01/34,
(Pre-refunded
4/01/24)
4/24
at
100.00
N/R (5)
1,010,390
2,200
5.000%,
4/01/39,
(Pre-refunded
4/01/24)
4/24
at
100.00
N/R (5)
2,222,858
1,600
5.000%,
4/01/46,
(Pre-refunded
4/01/24)
4/24
at
100.00
N/R (5)
1,616,624
5,540
New
Hope
Cultural
Education
Facilities
Finance
Corporation,
Texas,
Student
Housing
Revenue
Bonds,
CHF-Collegiate
Housing
Galveston-
Texas
A&M
University
at
Galveston
Project,
Series
2014A,
5.000%,
4/01/39,
(Pre-refunded
4/01/24)
4/24
at
100.00
N/R (5)
5,597,561
North
Texas
Tollway
Authority,
Special
Projects
System
Revenue
Bonds,
Convertible
Capital
Appreciation
Series
2011C:
2,590
0.000%,
9/01/43,
(Pre-refunded
9/01/31)
(8)
9/31
at
100.00
N/R (5)
3,262,649
3,910
6.750%,
9/01/45,
(Pre-refunded
9/01/31)
9/31
at
100.00
N/R (5)
5,003,119
2,000
North
Texas
Tollway
Authority,
System
Revenue
Bonds,
Refunding
Second
Tier,
Series
2015A,
5.000%,
1/01/38
1/25
at
100.00
A2
2,021,780
610
Reagan
Hospital
District
of
Reagan
County,
Texas,
Limited
Tax
Revenue
Bonds,
Series
2014A,
5.125%,
2/01/39
2/24
at
100.00
Ba1
613,678
1,080
Red
River
Education
Finance
Corporation,
Texas,
Higher
Education
Revenue
Bonds,
Saint
Edward?s
University
Project,
Series
2016,
4.000%,
6/01/41
6/26
at
100.00
BBB
935,939
1,000
San
Antonio,
Texas,
Electric
and
Gas
Systems
Revenue
Bonds,
Refunding
New
Series
2023B,
4.000%,
2/01/43
8/33
at
100.00
AA-
989,850
1,870
Tarrant
County
Cultural
Education
Facilities
Finance
Corporation,
Texas,
Hospital
Revenue
Bonds,
Hendrick
Medical
Center,
Refunding
Series
2013,
5.500%,
9/01/43,
(Pre-refunded
9/01/23)
9/23
at
100.00
A3 (5)
1,872,917
19,955
Tarrant
County
Cultural
Education
Facilities
Finance
Corporation,
Texas,
Revenue
Bonds,
Christus
Health,
Series
2022A,
4.000%,
7/01/53
7/32
at
100.00
A1
18,727,169
3,955
Texas
City
Industrial
Development
Corporation,
Texas,
Industrial
Development
Revenue
Bonds,
NRG
Energy,
inc.
Project,
Fixed
Rate
Series
2012,
4.125%,
12/01/45
2/25
at
100.00
Baa2
3,462,405
2,565
Texas
Department
of
Housing
and
Community
Affairs,
Single
Family
Mortgage
Revenue
Bonds,
Series
2018A,
4.250%,
9/01/43
9/27
at
100.00
AA+
2,541,428
Texas
Department
of
Housing
and
Community
Affairs,
Single
Family
Mortgage
Revenue
Bonds,
Series
2021A:
7,155
2.250%,
9/01/46
3/30
at
100.00
AA+
4,898,742
6,905
2.350%,
9/01/51
3/30
at
100.00
AA+
4,516,699
2,415
Texas
Department
of
Housing
and
Community
Affairs,
Single
Family
Mortgage
Revenue
Bonds,
Series
2023A,
4.600%,
9/01/43
9/32
at
100.00
Aaa
2,437,653
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Texas
(continued)
Texas
Private
Activity
Bond
Surface
Transportation
Corporation,
Senior
Lien
Revenue
Bonds,
LBJ
Infrastructure
Group
LLC
IH-635
Managed
Lanes
Project,
Refunding Series
2020A:
$
5,810
4.000%,
12/31/36
12/30
at
100.00
Baa2
$
5,596,366
2,735
4.000%,
6/30/37
12/30
at
100.00
Baa2
2,613,594
Texas
Transportation
Commission,
Central
Texas
Turnpike
System
Revenue
Bonds,
Refunding
First
Tier
Series
2015B:
11,280
0.000%,
8/15/36
8/24
at
59.60
A3
6,175,462
10,000
0.000%,
8/15/37
8/24
at
56.94
A3
5,170,900
Texas
Transportation
Commission,
Central
Texas
Turnpike
System
Revenue
Bonds,
Refunding
Second
Tier
Series
2015C:
5,230
5.000%,
8/15/37
8/24
at
100.00
Baa1
5,278,534
31,775
5.000%,
8/15/42
8/24
at
100.00
Baa1
31,991,388
7,500
Texas
Transportation
Commission,
State
Highway
249
System
Revenue
Bonds,
First
Tier
Toll
Series
2019A,
5.000%,
8/01/57
2/29
at
100.00
Baa2
7,564,350
4,400
Texas
Turnpike
Authority,
Central
Texas
Turnpike
System
Revenue
Bonds,
First
Tier
Series
2002A,
0.000%,
8/15/25
-
AMBAC
Insured
No
Opt.
Call
A3
4,089,580
1,530
Waxahachie
Independent
School
District,
Ellis
County,
Texas,
General
Obligation
Bonds,
School
Building
Series
2023,
4.250%,
2/15/53
,
(WI/DD)
8/33
at
100.00
Aaa
1,512,099
970
Ysleta
Independent
School
District
Public
Facility
Corporation,
Texas,
Lease
Revenue
Refunding
Bonds,
Series
2001,
5.375%,
11/15/24
-
AMBAC
Insured
11/23
at
100.00
N/R
974,491
Total
Texas
352,813,982
Utah
-
0.3%
(0.2%
of
Total
Investments)
Black
Desert
Public
Infrastructure
District,
Utah,
Limited
Tax
General
Obligation
Bonds,
Series
2021A:
510
3.750%,
3/01/41,
144A
9/26
at
103.00
N/R
410,917
1,095
4.000%,
3/01/51,
144A
9/26
at
103.00
N/R
833,952
5,085
Downtown
East
Streetcar
Sewer
Public
Infrastructure
District,
South
Salt
Lake,
Salt
Lake
County,
Utah,
Limited
Tax
General
Obligation
Bonds,
Series
2022A,
6.000%,
3/01/53,
144A
9/27
at
103.00
N/R
5,075,593
3,360
MIDA
Military
Installation
Development
Authority
Golf
and
Equestrian
Center
Public
Infrastructure
District,
Utah,
Limited
Tax
and
Tax
Allocation
Revenue
Bonds,
Series
2021,
4.500%,
6/01/51,
144A
12/26
at
103.00
N/R
2,392,555
500
Red
Bridge
Public
Infrastructure
District
1,
Utah,
Limited
Tax
General
Obligation
Bonds,
Series
2021A,
4.375%,
2/01/51,
144A
2/26
at
103.00
N/R
378,145
Total
Utah
9,091,162
Vermont
-
0.1%
(0.0%
of
Total
Investments)
1,835
Vermont
Economic
Development
Authority,
Mortgage
Revenue
Bonds,
Wake
Robin
Corporation
Project,
Series
2021A,
4.000%,
5/01/45
5/28
at
103.00
N/R
1,450,733
Total
Vermont
1,450,733
Virgin
Islands
-
0.2%
(0.1%
of
Total
Investments)
1,790
Virgin
Islands
Public
Finance
Authority,
Gross
Receipts
Taxes
Loan
Note,
Refunding
Series
2012A,
5.000%,
10/01/32
-
AGM
Insured
8/23
at
100.00
A1
1,791,181
4,715
West
Indian
Company
Limited,
Virgin
Islands,
Port
Facilities
Revenue
Bonds,
WICO
Financing,
Series
2022A,
6.375%,
4/01/52,
144A
10/29
at
104.00
N/R
4,512,208
Total
Virgin
Islands
6,303,389
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Virginia
-
1.1%
(0.7%
of
Total
Investments)
Embrey
Mill
Community
Development
Authority,
Virginia,
Special
Assessment
Revenue
Bonds,
Series
2015:
$
1,180
5.300%,
3/01/35,
(Pre-refunded
3/01/25)
3/25
at
100.00
N/R (5)
$
1,215,447
1,085
5.600%,
3/01/45,
(Pre-refunded
3/01/25)
3/25
at
100.00
N/R (5)
1,123,160
5,500
Hampton
Roads
Transportation
Accountability
Commision,
Virginia,
Revenue
Bonds,
Hampton
Roads
Transportation
Fund,
Senior
Lien
Series
2020A,
5.000%,
7/01/60
7/30
at
100.00
AA
5,897,650
James
City
County
Economic
Development
Authority,
Virginia,
Residential
Care
Facility
Revenue
Bonds,
Williamsburg
Landing
Inc.,
Refunding
Series
2021A:
1,115
4.000%,
12/01/40
12/27
at
103.00
N/R
947,382
2,690
4.000%,
12/01/50
12/27
at
103.00
N/R
2,075,577
2,000
Peninsula
Town
Center
Community
Development
Authority,
Virginia,
Special
Obligation
Bonds,
Refunding
Series
2018,
5.000%,
9/01/45,
144A
9/27
at
100.00
N/R
1,875,380
1,000
Virginia
College
Building
Authority,
Educational
Facilities
Revenue
Bonds,
Marymount
University
Project,
Green
Series
2015B,
5.250%,
7/01/35,
144A
7/25
at
100.00
Ba3
1,004,460
3,000
Virginia
Housing
Development
Authority,
Rental
Housing
Bonds,
Series
2023D,
4.700%,
8/01/48
,
(WI/DD)
8/32
at
100.00
AA+
3,028,980
10,480
Virginia
Small
Business
Finance
Authority,
Healthcare
Facilities
Revenue
Bonds,
Bon
Secours
Mercy
Health,
Inc.,
Series
2020A,
4.000%,
12/01/49
6/30
at
100.00
A+
9,959,983
1,995
Virginia
Small
Business
Finance
Authority,
Tourism
Development
Financing
Program
Revenue
Bonds,
Downtown
Norfolk
and
Virginia
Beach
Oceanfront
Hotel
Projects,
Series
2018A,
8.375%,
4/01/41,
144A
4/28
at
112.76
N/R
2,017,224
2,605
Williamsburg
Economic
Development
Authority,
Virginia,
Student
Housing
Revenue
Bonds,
Provident
Group
-
Williamsburg
Properties
LLC
-
William
and
Mary
Project
Series
2023A,
4.125%,
7/01/58
-
AGM
Insured
7/33
at
100.00
AA
2,504,499
Total
Virginia
31,649,742
Washington
-
1.2%
(0.7%
of
Total
Investments)
5,000
Energy
Northwest,
Washington,
Electric
Revenue
Bonds,
Columbia
Generating
Station,
Refunding
Series
2015A,
5.000%,
7/01/38
7/25
at
100.00
AA-
5,128,850
Washington
Health
Care
Facilities
Authority,
Revenue
Bonds,
Providence
Health
&
Services,
Series
2014C:
4,120
5.000%,
10/01/44
10/24
at
100.00
A
4,077,358
880
5.000%,
10/01/44,
(Pre-refunded
10/01/24)
10/24
at
100.00
N/R (5)
894,071
Washington
State
Housing
Finance
Commission,
Non-profit
Housing
Revenue
Bonds,
Presbyterian
Retirement
Communities
Northwest
Proejct,
Refunding
Series
2016A:
5,450
5.000%,
1/01/46,
144A
1/25
at
102.00
BB
4,318,744
3,650
5.000%,
1/01/51,
144A
1/25
at
102.00
BB
2,793,929
21,510
Washington
State,
Motor
Vehicle
Fuel
Tax
General
Obligation
Bonds,
Series
2002-03C,
0.000%,
6/01/28
-
NPFG
Insured,
(UB)
(6)
No
Opt.
Call
AA+
18,246,933
Total
Washington
35,459,885
West
Virginia
-
0.4%
(0.2%
of
Total
Investments)
1,900
Monongalia
County
Commission,
West
Virginia,
Special
District
Excise
Tax
Revenue
Bonds,
University
Town
Centre
Economic
Opportunity
Development
District,
Refunding
&
Improvement
Series
2017A,
5.500%,
6/01/37,
144A
6/27
at
100.00
N/R
1,951,661
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
West
Virginia
(continued)
$
440
Monongalia
County
Commission,
West
Virginia,
Special
District
Excise
Tax
Revenue
Bonds,
University
Town
Centre
Economic
Opportunity
Development
District,
Refunding
&
Improvement
Series
2021A,
4.125%,
6/01/43,
144A
6/31
at
100.00
N/R
$
396,510
1,000
West
Virginia
Hospital
Finance
Authority,
Hospital
Revenue
Bonds,
Cabell
Huntington
Hospital,
Inc.
Project,
Refunding
&
Improvement
Series
2018A,
5.000%,
1/01/43
1/29
at
100.00
Baa2
961,200
West
Virginia
Hospital
Finance
Authority,
Revenue
Bonds,
West
Virginia
University
Health
System,
Improvement
Series
2023A:
2,750
4.250%,
6/01/47,
(UB)
(6)
6/33
at
100.00
A
2,691,480
5,000
4.375%,
6/01/53,
(UB)
(6)
6/33
at
100.00
A
4,873,250
Total
West
Virginia
10,874,101
Wisconsin
-
4.3%
(2.6%
of
Total
Investments)
Public
Finance
Authority
of
Wisconsin,
Charter
School
Revenue
Bonds,
Cornerstone
Charter
Academy,
North
Carolina,
Series
2016A:
1,750
5.000%,
2/01/36,
144A
2/26
at
100.00
N/R
1,664,058
305
5.125%,
2/01/46,
144A
2/26
at
100.00
N/R
280,746
1,715
Public
Finance
Authority
of
Wisconsin,
Charter
School
Revenue
Bonds,
Corvian
Community
School
Bonds,
North
Carolina,
Series
2019A,
5.000%,
6/15/49,
144A
6/26
at
100.00
N/R
1,428,286
500
Public
Finance
Authority
of
Wisconsin,
Charter
School
Revenue
Bonds,
Corvian
Community
School,
North
Carolina,
Series
2017A,
5.125%,
6/15/47,
144A
6/24
at
100.00
N/R
431,225
1,480
Public
Finance
Authority
of
Wisconsin,
Charter
School
Revenue
Bonds,
Envision
Science
Academy
Project,
Series
2016A,
5.125%,
5/01/36,
144A
5/26
at
100.00
N/R
1,416,419
6,000
Public
Finance
Authority
of
Wisconsin,
Charter
School
Revenue
Bonds,
Phoenix
Academy
Charter
School,
North
Carolina,
Series
2017A,
5.625%,
6/15/37,
144A
6/24
at
100.00
N/R
5,488,500
Public
Finance
Authority
of
Wisconsin,
Charter
School
Revenue
Bonds,
Uwharrie
Charter
Academy,
North
Carolina,
Series
2017A:
1,000
5.500%,
6/15/37,
144A
6/27
at
100.00
N/R
1,000,960
1,790
5.625%,
6/15/47,
144A
6/27
at
100.00
N/R
1,756,438
1,500
Public
Finance
Authority
of
Wisconsin,
Education
Revenue
Bonds,
Corvian
Community
School,
North
Carolina
Series
2023A,
6.250%,
6/15/53,
144A
6/33
at
100.00
N/R
1,473,975
15,205
Public
Finance
Authority
of
Wisconsin,
Health
Care
System
Revenue
Bonds,
Cone
Health,
Series
2022A,
4.000%,
10/01/52,
(UB)
(6)
10/32
at
100.00
AA-
14,234,921
35,100
Public
Finance
Authority
of
Wisconsin,
Limited
Obligation
PILOT
Revenue
Bonds,
American
Dream
@
Meadowlands
Project,
Series
2017,
7.000%,
12/01/50,
144A
12/27
at
100.00
N/R
32,014,710
1,700
Public
Finance
Authority
of
Wisconsin,
Revenue
Bonds,
Alabama
Proton
Therapy
Center,
Senior
Series
2017A,
7.000%,
10/01/47,
144A
(4)
10/27
at
100.00
N/R
1,020,000
Public
Finance
Authority
of
Wisconsin,
Revenue
Bonds,
Prime
Healthcare
Foundation,
Inc.,
Series
2017A:
1,055
5.000%,
12/01/27
No
Opt.
Call
BBB
1,071,121
1,815
5.200%,
12/01/37
12/27
at
100.00
BBB
1,849,630
Public
Finance
Authority
of
Wisconsin,
Revenue
Bonds,
Roseman
University
of
Health
Sciences,
Series
2020:
1,225
5.000%,
4/01/40,
144A
4/30
at
100.00
BB
1,199,152
75
5.000%,
4/01/40,
(Pre-refunded
4/01/30),
144A
4/30
at
100.00
N/R (5)
84,942
4,520
5.000%,
4/01/50,
144A
4/30
at
100.00
BB
4,211,420
245
5.000%,
4/01/50,
(Pre-refunded
4/01/30),
144A
4/30
at
100.00
N/R (5)
277,477
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Wisconsin
(continued)
Public
Finance
Authority,
Wisconsin,
Educational
Revenue
Bonds,
Lake
Norman
Charter
School,
Series
2018A:
$
4,050
5.000%,
6/15/38,
144A
6/26
at
100.00
BBB-
$
4,050,243
1,575
5.000%,
6/15/48,
144A
6/26
at
100.00
BBB-
1,529,561
2,500
Public
Finance
Authority,
Wisconsin,
Exempt
Facilities
Revenue
Bonds,
Celanese
Project,
Refunding
Series
2016C,
4.050%,
11/01/30
5/26
at
100.00
BBB-
2,446,050
Wisconsin
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Mercy
Alliance,
Inc.,
Series
2012:
11,000
5.000%,
6/01/32
8/23
at
100.00
A3
11,001,980
1,000
5.000%,
6/01/39
8/23
at
100.00
A3
992,740
Wisconsin
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
PHW
Muskego,
Inc.
Project,
Series
2021:
2,405
4.000%,
10/01/51
10/28
at
102.00
N/R
1,716,737
3,845
4.000%,
10/01/61
10/28
at
102.00
N/R
2,572,574
1,450
Wisconsin
Health
and
Educational
Facilities
Authority,
Revenue
Bonds,
Rocket
Education
Obligated
Group,
Series
2017C,
5.250%,
6/01/40,
144A
6/26
at
100.00
N/R
1,382,865
1,000
Wisconsin
Health
and
Educational
Facilities
Authority,
Wisconsin,
Revenue
Bonds,
American
Baptist
Homes
of
the
Midwest
Obligated
Group,
Refunding
Series
2017,
5.000%,
8/01/37
8/24
at
103.00
N/R
807,210
Wisconsin
Health
and
Educational
Facilities
Authority,
Wisconsin,
Revenue
Bonds,
Dickson
Hollow
Project.
Series
2014:
1,000
5.375%,
10/01/44
8/23
at
102.00
N/R
870,490
1,500
5.500%,
10/01/49
8/23
at
102.00
N/R
1,305,600
3,000
Wisconsin
Health
and
Educational
Facilities
Authority,
Wisconsin,
Revenue
Bonds,
Marshfield
Clinic,
Series
2016A,
5.000%,
2/15/42
2/26
at
100.00
BBB+
2,964,570
2,275
Wisconsin
Health
and
Educational
Facilities
Authority,
Wisconsin,
Revenue
Bonds,
Oakwood
Lutheran
Senior
Ministries,
Series
2021,
4.000%,
1/01/57
1/27
at
103.00
N/R
1,537,218
1,000
Wisconsin
Health
and
Educational
Facilities
Authority,
Wisconsin,
Revenue
Bonds,
Rogers
Memorial
Hospital,
Inc.,
Series
2014A,
5.000%,
7/01/34
7/24
at
100.00
A
1,014,480
1,850
Wisconsin
Health
and
Educational
Facilities
Authority,
Wisconsin,
Revenue
Bonds,
Saint
Camillus
Health
System
Inc,
Series
2019A,
5.000%,
11/01/54
11/26
at
103.00
N/R
1,430,420
10,520
Wisconsin
Health
and
Educational
Facilities
Authority,
Wisconsin,
Revenue
Bonds,
ThedaCare
Inc,
Series
2019,
4.000%,
12/15/49
12/29
at
100.00
A1
9,809,269
Wisconsin
Health
and
Educational
Facilities
Authority,
Wisconsin,
Revenue
Bonds,
Woodland
Hills
Senior
Housing
Project,
Series
2014:
2,565
5.000%,
12/01/44
8/23
at
102.00
N/R
2,157,909
1,775
5.250%,
12/01/49
8/23
at
102.00
N/R
1,516,595
Wisconsin
Housing
and
Economic
Development
Authority,
Housing
Revenue
Bonds,
Series
2019A:
2,800
3.150%,
11/01/44
11/28
at
100.00
Aa3
2,249,856
3,000
3.200%,
11/01/49
11/28
at
100.00
Aa3
2,292,660
Total
Wisconsin
124,553,007
Wyoming
-
0.1%
(0.1%
of
Total
Investments)
2,500
Wyoming
Community
Development
Authority,
Housing
Revenue
Bonds,
2023
Series
1,
4.400%,
12/01/43
6/32
at
100.00
AA+
2,475,775
Total
Wyoming
2,475,775
Total
Municipal
Bonds
(cost
$4,820,541,971)
4,686,630,929
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
Shares
Description
(1)
Value
X
–
COMMON
STOCKS
-
2
.2
%
(
1
.4
%
of
Total
Investments)
X
65,049,961
Electric
Utilities
-
0.4%
(0.3%
of
Total
Investments)
67,198
Talen
Energy
Corp
(9)
$
3,499,336
181,298
Talen
Energy
Supply
LLC
(9)
9,441,093
Total
Electric
Utilities
12,940,429
Independent
Power
and
Renewable
Electricity
Producers
-
1.8%
(1.1%
of
Total
Investments)
676,308
Energy
Harbor
Corp
(9),(10)
52,109,532
Total
Independent
Power
and
Renewable
Electricity
Producers
52,109,532
Total
Common
Stocks
(cost
$21,375,497)
65,049,961
Total
Long-Term
Investments
(cost
$4,841,917,468)
4,751,680,890
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
SHORT-TERM
INVESTMENTS
-
1.6% (0.9%
of
Total
Investments)
–
MUNICIPAL
BONDS
-
1
.6
%
(
0
.9
%
of
Total
Investments)
X
44,670,000
Florida
-
0.5%
(0.3%
of
Total
Investments)
$
15,000
JEA,
Florida,
Electric
System
Revenue
Bonds,
Variable
Rate
Demand
Obligations
Series
Three
2008C-2,
3.920%,
10/01/34,
(Mandatory
Put
8/7/2023)
(11)
7/23
at
100.00
A+
$
15,000,000
Total
Florida
15,000,000
Georgia
-
0.2%
(0.1%
of
Total
Investments)
5,420
Gwinnett
County
Development
Authority, Georgia,
Revenue
Bonds,
Georgia
Gwinnett
College
Student
Housing
Project,
Tender
Option
Bond
Series
2020-XM0871,
4.230%,
1/01/26,
(Mandatory
Put
8/7/2023),
144A
(11)
No
Opt.
Call
A+
5,420,000
Total
Georgia
5,420,000
Michigan
-
0.2%
(0.1%
of
Total
Investments)
6,500
Michigan
State
Building
Authority,
Revenue
Bonds,
Facilities
Program,
Refunding
Series
2020-III,
4.100%,
10/15/42,
(Mandatory
Put
8/7/2023)
(11)
7/23
at
100.00
Aa2
6,500,000
Total
Michigan
6,500,000
New
York
-
0.2%
(0.1%
of
Total
Investments)
5,000
Triborough
Bridge
and
Tunnel
Authority,
New
York,
Sales
Tax
Revenue
Bonds,
MTA
Bridges
&
Tunnels,
TBTA
Capital
Lockbox-City
Sales
Tax
Green
Series
2022-XF1321,
4.300%,
5/15/28,
(Mandatory
Put
8/7/2023),
144A
(11)
No
Opt.
Call
A-
5,000,000
Total
New
York
5,000,000
Part
F
of
Form
N-PORT
was
prepared
in
accordance
with
U.S.
generally
accepted
accounting
principles
(“U.S.
GAAP”)
and
in
conformity
with
the
applicable
rules
and
regulations
of
the
U.S.
Securities
and
Exchange
Commission
(“SEC”)
related
to
interim
filings.
Part
F
of
Form
N-PORT
does
not
include
all
information
and
footnotes
required
by
U.S.
GAAP
for
complete
financial
statements.
Certain
footnote
disclosures
normally
included
in
financial
statements
prepared
in
accordance
with
U.S.
GAAP
have
been
condensed
or
omitted
from
this
report
pursuant
to
the
rules
of
the
SEC.
For
a
full
set
of
the
Fund’s
notes
to
financial
statements,
please
refer
to
the
Fund’s
most
recently
filed
annual
or
semi-annual
report.
Fair
Value
Measurements
The
Fund’s
investments
in
securities
are
recorded
at
their
estimated
fair
value
utilizing
valuation
methods
approved
by
the
Board
of
Directors/
Trustees.
Fair
value
is
defined
as
the
price
that
would
be
received
upon
selling
an
investment
or
transferring
a
liability
in
an
orderly
transaction
to
an
independent
buyer
in
the
principal
or
most
advantageous
market
for
the
investment.
U.S.
GAAP
establishes
the
three-tier
hierarchy
which
is
used
to
maximize
the
use
of
observable
market
data
and
minimize
the
use
of
unobservable
inputs
and
to
establish
classification
of
fair
value
measurements
for
disclosure
purposes.
Observable
inputs
reflect
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Observable
inputs
are
based
on
market
data
obtained
from
sources
independent
of
the
reporting
entity.
Unobservable
inputs
reflect
management’s
assumptions
about
the
assumptions
market
participants
would
use
in
pricing
the
asset
or
liability.
Unobservable
inputs
are
based
on
the
best
information
available
in
the
circumstances.
The
following
is
a
summary
of
the
three-tiered
hierarchy
of
valuation
input
levels.
Level
1
–
Inputs
are
unadjusted
and
prices
are
determined
using
quoted
prices
in
active
markets
for
identical
securities.
Level
2
–
Prices
are
determined
using
other
significant
observable
inputs
(including
quoted
prices
for
similar
securities,
interest
rates,
credit
spreads,
etc.).
Level
3
–
Prices
are
determined
using
significant
unobservable
inputs
(including
management’s
assumptions
in
determining
the
fair
value
of
investments).
The
following
table
summarizes
the
market
value
of
the
Fund's
investments
as
of
the
end
of
the
reporting
period,
based
on
the
inputs
used
to
value
them:
Principal
Amount
(000)
Description
(1)
Optional
Call
Provisions
(2)
Ratings
(3)
Value
Ohio
-
0.5%
(0.3%
of
Total
Investments)
$
12,750
Hamilton
County,
Ohio,
Sewer
System
Revenue
Bonds,
Metropolitan
Sewer
District
of
Greater
Cincinnati,
Tender
Option
Bond
Floater
2016-XM0380,
4.060%,
12/01/23,
(Mandatory
Put
8/7/2023),
144A
(11)
No
Opt.
Call
AA+
$
12,750,000
Total
Ohio
12,750,000
Total
Municipal
Bonds
(cost
$44,670,000)
44,670,000
Total
Short-Term
Investments
(cost
$44,670,000)
44,670,000
Total
Investments
(cost
$
4,886,587,468
)
-
165
.8
%
4,796,350,890
Floating
Rate
Obligations
-
(7.4)%
(
213,470,000
)
MFP
Shares,
Net
-
(17.8)%(12)
(
515,891,063
)
VRDP
Shares,
Net-
(42.6)%(13)
(
1,233,878,364
)
Other
Assets
&
Liabilities,
Net
- 2.0%
60,599,718
Net
Assets
Applicable
to
Common
Shares
-
100%
$
2,893,711,181
Level
1
Level
2
Level
3
Total
Long-Term
Investments:
Municipal
Bonds
$
–
$
4,686,541,033
$
89,896
$
4,686,630,929
Common
Stocks
–
65,049,961
–
65,049,961
Short-Term
Investments:
Municipal
Bonds
–
44,670,000
–
44,670,000
Total
$
–
$
4,796,260,994
$
89,896
$
4,796,350,890
(1)
All
percentages
shown
in
the
Portfolio
of
Investments
are
based
on
net
assets
applicable
to
common
shares
unless
otherwise
noted.
(2)
Optional
Call
Provisions:
Dates
(month
and
year)
and
prices
of
the
earliest
optional
call
or
redemption.
There
may
be
other
call
provisions
at
varying
prices
at
later
dates.
Certain
mortgage-backed
securities
may
be
subject
to
periodic
principal
paydowns.
(3)
The
ratings
disclosed
are
the
lowest
of
Standard
&
Poor’s
Group
(“Standard
&
Poor’s”),
Moody’s
Investors
Service,
Inc.
(“Moody’s”)
or
Fitch,
Inc.
(“Fitch”)
rating.
Ratings
below
BBB
by
Standard
&
Poor’s,
Baa
by
Moody’s
or
BBB
by
Fitch
are
considered
to
be
below
investment
grade.
Holdings
designated
N/R
are
not
rated
by
any
of
these
national
rating
agencies.
(4)
Defaulted
security.
A
security
whose
issuer
has
failed
to
fully
pay
principal
and/or
interest
when
due,
or
is
under
the
protection
of
bankruptcy.
(5)
Backed
by
an
escrow
or
trust
containing
sufficient
U.S.
Government
or
U.S.
Government
agency
securities,
which
ensure
the
timely
payment
of
principal
and
interest.
Nuveen
AMT-Free
Municipal
Credit
Income
Fund
(continued)
Portfolio
of
Investments
July
31,
2023
(Unaudited)
(6)
Investment,
or
portion
of
investment,
has
been
pledged
to
collateralize
the
net
payment
obligations
for
investments
in
inverse
floating
rate
transactions.
(7)
For
fair
value
measurement
disclosure
purposes,
investment
classified
as
Level
3.
(8)
Step-up
coupon
bond,
a
bond
with
a
coupon
that
increases
("steps
up"),
usually
at
regular
intervals,
while
the
bond
is
outstanding.
The
rate
shown
is
the
coupon
as
of
the
end
of
the
reporting
period.
(9)
Non-income
producing;
issuer
has
not
declared
an
ex-dividend
date
within
the
past
twelve
months.
(10)
Energy
Harbor
Corp
(ENGH)
common
stock
received
as
part
of
the
bankruptcy
settlements
during
February
2020
for
Beaver
County
Industrial
Development
Authority,
Pennsylvania,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Nuclear
Generation
Project,
Refunding
Series
2005A,
4.000%,
1/01/35,
Beaver
County
Industrial
Development
Authority,
Pennsylvania,
Pollution
Control
Revenue
Refunding
Bonds,
FirstEnergy
Nuclear
Generation
Project,
Series
2006A,
3.500%,
4/01/41,
Beaver
County
Industrial
Development
Authority,
Pennsylvania,
Pollution
Control
Revenue
Refunding
Bonds,
FirstEnergy
Nuclear
Generation
Project,
Series
2006B,
3.500%,
12/01/35,
Ohio
Air
Quality
Development
Authority,
Ohio,
Air
Quality
Development
Revenue
Bonds,
FirstEnergy
Generation
Corporation
Project,
Series
2009A,
5.700%,
8/01/20,
Ohio
Air
Quality
Development
Authority,
Ohio,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Generation
Corporation
Project,
Refunding
Series
2009B,
3.100%,
3/01/23,
Ohio
Air
Quality
Development
Authority,
Ohio,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Nuclear
Generation
Corporation
Project,
Refunding
Series
2010B,
3.750%,
6/01/33,
Ohio
Air
Quality
Development
Authority,
Ohio,
Pollution
Control
Revenue
Bonds,
FirstEnergy
Nuclear
Generation
Project,
Refunding
Series
2006B,
3.125%,
1/01/34,
Ohio
Water
Development
Authority,
Pollution
Control
Revenue
Refunding
Bonds,
FirstEnergy
Nuclear
Generating
Corporation
Project,
Series
2006B,
4.000%,
12/01/33,
Ohio
Water
Development
Authority,
Pollution
Control
Revenue
Refunding
Bonds,
FirstEnergy
Nuclear
Generating
Corporation
Project,
Series
2010C,
4.000%,
6/01/33.
Various
funds
and
accounts
managed
by
Nuveen,
including
the
Fund,
collectively
are
a
substantial
minority
holder
of
ENGH’s
outstanding
shares
of
common
stock,
and
possess
certain
other
rights
with
respect
to
the
corporate
governance
of
ENGH.
Due
to
these
facts,
under
the
federal
securities
laws,
the
securities
of
ENGH
held
by
Nuveen
funds
and
accounts,
including
the
Fund,
cannot
be
sold
except
under
limited
conditions
(which
are
not currently
satisfied).
The
Fund
is
therefore
unable
to
sell
such
shares
in
ordinary
secondary
market
transactions
at
this
time.
On
March
6,
2023
Vistra
Corp.
(“Vistra”)
announced
that
it
has
executed
a
definitive
agreement
with
Energy
Harbor
Corp.,
pursuant
to
which
Energy
Harbor
will
merge
with
and
into
a
newly-formed
subsidiary
of
Vistra. The
companies
anticipate
closing
the
transaction
in
the
second
half
of
2023. In
connection
with
the
transaction,
Nuveen
funds
and
accounts
expect
to
receive
a
combination
of
cash
and
shares
in
a
newly
formed
entity.
Nuveen
expects
these
shares
to
be
issued
in
a
private
transaction
and
may
have
reduced
secondary
market
liquidity. The
transaction
is
subject
to
certain
regulatory
approvals
and
there
can
be
no
assurance
that
the
transaction
will
close.
(11)
Investment
has
a
maturity
of
greater
than
one
year,
but
has
variable
rate
and/or
demand
features
which
qualify
it
as
a
short-term
investment.
The
rate
disclosed,
as
well
as
the
reference
rate
and
spread,
where
applicable,
is
that
in
effect
as
of
the
end
of
the
reporting
period.
This
rate
changes
periodically
based
on
market
conditions
or
a
specified
market
index.
(12)
MFP
Shares,
Net
as
a
percentage
of
Total
Investments
is
10.8%.
(13)
VRDP
Shares,
Net
as
a
percentage
of
Total
Investments
is
25.7%.
144A
Investment
is
exempt
from
registration
under
Rule
144A
of
the
Securities
Act
of
1933,
as
amended.
These
investments
may
only
be
resold
in
transactions
exempt
from
registration,
which
are
normally
those
transactions
with
qualified
institutional
buyers.
ETM
Escrowed
to
maturity
IF
Inverse
floating
rate
security
issued
by
a
tender
option
bond
(“TOB”)
trust,
the
interest
rate
on
which
varies
inversely
with
the
Securities
Industry
Financial
Markets
Association
(SIFMA)
short-term
rate,
which
resets
weekly,
or
a
similar
short-term
rate,
and
is
reduced
by
the
expenses
related
to
the
TOB
trust.
UB
Underlying
bond
of
an
inverse
floating
rate
trust
reflected
as
a
financing
transaction.
WI/DD
Purchased
on
a
when-issued
or
delayed
delivery
basis.
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