1
Nuveen
Taxable
Municipal
Income
Fund
Portfolio
of
Investments
December
31,
2023
(Unaudited)
NBB
Principal
Amount
(000)
Description
(a)
Optional
Call
Provisions
(b)
Value
LONG-TERM
INVESTMENTS
-
145.3% 
(100.0%
of
Total
Investments)
X
–
MUNICIPAL
BONDS
-
145
.3
%
(
100
.0
%
of
Total
Investments)
X
726,236,539
Alaska
-
0.6%
(0.4%
of
Total
Investments)
$
3,025
Port
Lions,
Alaska,
Revenue
Bonds,
Kodiak
Area
Native
Association
Project,
Taxable
Series
2022,
7.500%,
10/01/52
10/32
at
100.00
$
3,182,495
Total
Alaska
3,182,495
Arizona
-
0.1%
(0.1%
of
Total
Investments)
500
Maricopa
County
Industrial
Development
Authority,
Arizona,
Education
Revenue
Bonds,
Villa
Montessori,
Inc
Project,
Taxable
Series
2023B,
8.000%,
7/01/53
1/24
at
102.00
510,194
Total
Arizona
510,194
California
-
30.8%
(21.2%
of
Total
Investments)
ABAG
Finance
Authority
for
Non-Profit
Corporations,
California,
Special
Tax
Bonds,
Community
Facilities
District
2004-1
Seismic
Safety
Improvements
690
&
942
Market
Street
Project,
Taxable
Refunding
Series
2018
:
1,950
5.100%,
9/01/28
No
Opt.
Call
1,899,413
6,125
5.500%,
9/01/38
9/28
at
100.00
5,613,826
2,520
Alameda
Corridor
Transportation
Authority,
California,
Revenue
Bonds,
Refunding
Taxable
Subordinate
Lien
Series
2004B,
0.010%,
10/01/31
-
AMBAC
Insured
No
Opt.
Call
1,700,621
California
Infrastructure
and
Economic
Development
Bank,
Revenue
Bonds,
J.
David
Gladstone
Institutes
Project,
Taxable
Series
2019
:
2,480
4.000%,
10/01/39
10/29
at
100.00
2,059,151
8,260
4.658%,
10/01/59
10/29
at
100.00
6,663,632
1,000
California
Infrastructure
and
Economic
Development
Bank,
Revenue
Bonds,
University
of
California
San
Francisco
Neurosciences
Building,
Build
America
Taxable
Bond
Series
2010B,
6.486%,
5/15/49
No
Opt.
Call
1,125,816
8,010
California
Municipal
Finance
Authority,
Mobile
Home
Park
Revenue
Bonds,
Windsor
Mobile
Country
Club,
Taxable
Refunding
Series
20202B,
6.375%,
11/15/48,
144A
11/30
at
100.00
7,459,176
540
California
Public
Finance
Authority,
University
Housing
Revenue
Bonds,
National
Campus
Community
Development
-
Claremont
Properties
LLC
Claremont
Colleges
Project,
Taxable
Refunding
Series
2023B,
6.500%,
7/01/32,
144A
No
Opt.
Call
527,740
4,530
(c)
California
State
Public
Works
Board,
Lease
Revenue
Bonds,
Various
Capital
Projects,
Build
America
Taxable
Bond
Series
2009G-2,
8.361%,
10/01/34
No
Opt.
Call
5,601,918
7,010
California
State
University,
Systemwide
Revenue
Bonds,
Build
America
Taxable
Bond
Series
2010B,
6.484%,
11/01/41
No
Opt.
Call
7,884,709
2,000
California
State,
General
Obligation
Bonds,
Build
America
Federally
Taxable
Series
2009,
7.550%,
4/01/39
No
Opt.
Call
2,530,149
4,110
(c)
California
State,
General
Obligation
Bonds,
Various
Purpose,
Build
America
Taxable
Bond
Series
2010,
7.600%,
11/01/40
No
Opt.
Call
5,243,839
2,720
California
Statewide
Communities
Development
Authority,
California,
Revenue
Bonds,
Loma
Linda
University
Medical
Center,
Series
2014B,
6.000%,
12/01/24
No
Opt.
Call
2,708,698
Nuveen
Taxable
Municipal
Income
Fund
(continued)
Portfolio
of
Investments
December
31,
2023
(Unaudited)
2
NBB
Principal
Amount
(000)
Description
(a)
Optional
Call
Provisions
(b)
Value
California
(continued)
$
2,000
California
Statewide
Communities
Development
Authority,
Limited
Obligation
Improvement
Bonds,
300
Lakeside
Drive
Oakland
Property
Assessed
Clean
Energy,
Taxable
Sustainability
Green
Series
2023,
8.000%,
9/02/53,
144A
8/23
at
105.00
$
2,048,547
1,300
California
Statewide
Community
Development
Authority,
Health
Revenue
Bonds,
Enloe
Medical
Center,
Refunding
Series
2022B,
7.140%,
8/15/47
-
AGM
Insured
8/32
at
100.00
1,418,532
2,025
Chino
Public
Financing
Authority,
California,
Local
Agency
Bonds,
Refunding
Series
2021A,
4.001%,
9/01/38
9/31
at
100.00
1,800,286
3,800
Golden
State
Tobacco
Securitization
Corporation,
California,
Enhanced
Tobacco
Settlement
Asset-Backed
Revenue
Bonds,
Taxable
Series
2021A,
3.115%,
6/01/38
6/31
at
100.00
3,092,868
5,000
Golden
State
Tobacco
Securitization
Corporation,
California,
Enhanced
Tobacco
Settlement
Asset-Backed
Revenue
Bonds,
Taxable
Series
2021B,
3.293%,
6/01/42
6/31
at
100.00
3,913,426
Golden
State
Tobacco
Securitization
Corporation,
California,
Tobacco
Settlement
Asset-Backed
Bonds,
Taxable
Senior
Series
2021A-1
:
3,500
2.587%,
6/01/29
No
Opt.
Call
3,094,861
2,000
3.714%,
6/01/41
12/31
at
100.00
1,528,866
Los
Angeles
Community
College
District,
California,
General
Obligation
Bonds,
Build
America
Taxable
Bonds,
Series
2010
:
10,000
6.600%,
8/01/42,
(UB)
No
Opt.
Call
11,984,823
7,500
(c),(d)
6.600%,
8/01/42
No
Opt.
Call
8,988,617
Los
Angeles
Community
College
District,
Los
Angeles
County,
California,
General
Obligation
Bonds,
Tender
Option
Bond
Trust
2016-XTG002,
Formerly
Tender
Option
Bond
Trust
TN027
:
2,000
(d)
9.439%,
8/01/49,
144A,
(IF)
No
Opt.
Call
4,500,315
Los
Angeles
County
Public
Works
Financing
Authority,
California,
Lease
Revenue
Bonds,
Mulitple
Capital
Projects
I,
Build
America
Taxable
Bond
Series
2010B
:
2,050
(c)
7.488%,
8/01/33
No
Opt.
Call
2,298,597
11,380
(c)
7.618%,
8/01/40
No
Opt.
Call
14,087,205
3,110
Los
Angeles
Department
of
Airports,
California,
Revenue
Bonds,
Los
Angeles
International
Airport,
Build
America
Taxable
Bonds,
Series
2009C,
6.582%,
5/15/39
No
Opt.
Call
3,436,910
80
Los
Angeles
Department
of
Water
and
Power,
California,
Power
System
Revenue
Bonds,
Federally
Taxable
-
Direct
Payment
-
Build
America
Bonds,
Series
2010A,
5.716%,
7/01/39
No
Opt.
Call
86,003
1,785
(c)
Los
Angeles
Department
of
Water
and
Power,
California,
Power
System
Revenue
Bonds,
Federally
Taxable
-
Direct
Payment
-
Build
America
Bonds,
Series
2010D,
6.574%,
7/01/45
No
Opt.
Call
2,127,557
4,000
(d)
Los
Angeles
Department
of
Water
and
Power,
California,
Water
System
Revenue
Bonds,
Tender
Option
Bond
Trust
2016-XFT906,
8.165%,
7/01/50,
144A,
(IF)
No
Opt.
Call
8,481,746
4,250
(c)
Sacramento
Public
Financing
Authority,
California,
Lease
Revenue
Bonds,
Golden
1
Center,
Series
2015,
5.637%,
4/01/50
No
Opt.
Call
4,469,972
2,200
San
Diego
County
Regional
Transportation
Commission,
California,
Sales
Tax
Revenue
Bonds,
Build
America
Taxable
Bonds
Series
2010A,
5.911%,
4/01/48
No
Opt.
Call
2,453,926
1,500
San
Francisco
City
and
County
Public
Utilities
Commission,
California,
Water
Revenue
Bonds,
Taxable
Build
America
Bond
Series
2010G,
6.950%,
11/01/50
No
Opt.
Call
1,859,825
3
Principal
Amount
(000)
Description
(a)
Optional
Call
Provisions
(b)
Value
California
(continued)
$
1,000
San
Francisco
City
and
County
Redevelopment
Financing
Authority,
California,
Tax
Allocation
Revenue
Bonds,
San
Francisco
Redevelopment
Projects,
Taxable
Series
2009E,
8.406%,
8/01/39
No
Opt.
Call
$
1,265,831
San
Francisco
City
and
County,
California,
Certificates
of
Participation,
525
Golden
Gate
Avenue,
San
Francisco
Public
Utilities
Commission
Office
Project,
Tender
Option
Bond
2016-XFT901,
Formerly
Tender
Option
Bond
Trust
B001
:
4,000
(d)
8.040%,
11/01/41,
144A,
(IF)
No
Opt.
Call
5,700,300
2,000
(d)
8.040%,
11/01/41,
144A,
(IF)
No
Opt.
Call
2,850,150
1,270
San
Francisco
City
and
County,
California,
Development
Special
Tax
Bonds,
Mission
Rock
Facilities
and
Services
Special
Tax
District
2020-1,
Taxable
Series
2021B,
4.000%,
9/01/31,
144A
No
Opt.
Call
1,129,370
2,000
(c)
University
of
California
Regents,
Medical
Center
Pooled
Revenue
Bonds,
Taxable
Build
America
Bond
Series
2010H,
6.548%,
5/15/48
No
Opt.
Call
2,342,190
2,505
University
of
California,
General
Revenue
Bonds,
Limited
Project,
Build
America
Taxable
Bond
Series
2010F,
5.946%,
5/15/45
No
Opt.
Call
2,751,192
4,410
Vernon,
California,
Electric
System
Revenue
Bonds,
Series
2008A,
8.590%,
7/01/38
No
Opt.
Call
5,279,184
Total
California
154,009,787
Colorado
-
1.9%
(1.3%
of
Total
Investments)
4,335
(c)
Colorado
Bridge
Enterprise,
Revenue
Bonds,
Federally
Taxable
Build
America
Series
2010A,
6.078%,
12/01/40
No
Opt.
Call
4,704,949
3,100
(c)
Denver
School
District
1,
Colorado,
General
Obligation
Bonds,
Build
America
Taxable
Bonds,
Series
2009C,
5.664%,
12/01/33
No
Opt.
Call
3,264,457
1,230
(c)
Regional
Transportation
District,
Colorado,
Sales
Tax
Revenue
Bonds,
Fastracks
Project,
Build
America
Series
2010B,
5.844%,
11/01/50
No
Opt.
Call
1,348,831
Total
Colorado
9,318,237
District
of
Columbia
-
3.9%
(2.7%
of
Total
Investments)
Metropolitan
Washington
Airports
Authority,
Virginia,
Dulles
Toll
Road
Revenue
Bonds,
Dulles
Metrorail
&
Capital
improvement
Projects,
Second
Senior
Lien,
Build
America
Bond
Series
2009D
:
14,365
(c)
7.462%,
10/01/46
No
Opt.
Call
18,283,583
1,000
7.462%,
10/01/46
-
AGM
Insured
No
Opt.
Call
1,296,245
Total
District
of
Columbia
19,579,828
Florida
-
3.8%
(2.6%
of
Total
Investments)
12,265
Charlotte
County
Industrial
Development
Authority,
Florida,
Utility
System
Revenue
Bonds,
Town
&
Country
Utilities
Project,
Taxable
Series
2021B,
5.000%,
10/01/36,
144A
10/31
at
100.00
10,837,368
1,400
Miami,
Florida,
Special
Obligation
Revenue
Bonds,
Street
&
Sidewalk
Improvement
Program,
Taxable
Refunding
Series
2018B,
4.808%,
1/01/39
-
AGM
Insured,
144A
1/28
at
100.00
1,343,256
6,570
Miami-Dade
County,
Florida,
Seaport
Revenue
Bonds,
Taxable
Series
2023,
6.224%,
11/01/55
11/33
at
100.00
6,976,151
Total
Florida
19,156,775
Georgia
-
7.1%
(4.9%
of
Total
Investments)
2,293
Georgia
Municipal
Electric
Authority,
Plant
Vogtle
Units
3
&
4
Project
M
Bonds,
Taxable
Build
America
Bonds
Series
2010A,
6.655%,
4/01/57
No
Opt.
Call
2,612,389
Georgia
Municipal
Electric
Authority,
Plant
Vogtle
Units
3
&
4
Project
P
Bonds,
Refunding
Taxable
Build
America
Bonds
Series
2010A
:
18,444
(c)
7.055%,
4/01/57
No
Opt.
Call
20,649,290
Nuveen
Taxable
Municipal
Income
Fund
(continued)
Portfolio
of
Investments
December
31,
2023
(Unaudited)
4
NBB
Principal
Amount
(000)
Description
(a)
Optional
Call
Provisions
(b)
Value
Georgia
(continued)
$
5,737
7.055%,
4/01/57
-
AGM
Insured
No
Opt.
Call
$
6,651,771
5,077
Municipal
Electric
Authority
of
Georgia,
Plant
Vogtle
Units
3
&
4
Project
J
Bonds,
Taxable
Build
America
Bonds
Series
2010A,
6.637%,
4/01/57
No
Opt.
Call
5,807,203
Total
Georgia
35,720,653
Illinois
-
11.8%
(8.2%
of
Total
Investments)
4,030
(c)
Chicago
Board
of
Education,
Illinois,
General
Obligation
Bonds,
Dedicated
Revenues,
Series
2010C,
6.319%,
11/01/29
-
BAM
Insured
No
Opt.
Call
4,212,953
10,995
(c)
Chicago
Transit
Authority,
Illinois,
Sales
Tax
Receipts
Revenue
Bonds,
Federally
Taxable
Build
America
Bonds,
Series
2010B,
6.200%,
12/01/40
No
Opt.
Call
11,963,777
1,000
Chicago
Transit
Authority,
Illinois,
Sales
Tax
Receipts
Revenue
Bonds,
Taxable
Refunding
Series
2020B,
3.912%,
12/01/40
No
Opt.
Call
867,416
355
Chicago,
Illinois,
General
Airport
Revenue
Bonds,
O'Hare
International
Airport,
Third
Lien,
Taxable
Build
America
Bond
Series
2010B,
6.395%,
1/01/40
No
Opt.
Call
404,330
1,015
Chicago,
Illinois,
Wastewater
Transmission
Revenue
Bonds,
Build
America
Taxable
Bond
Series
2010B,
6.900%,
1/01/40
No
Opt.
Call
1,169,421
3,495
Chicago,
Illinois,
Water
Revenue
Bonds,
Taxable
Second
Lien
Series
2010B,
6.742%,
11/01/40
No
Opt.
Call
4,011,577
1,950
Cook
County,
Illinois,
General
Obligation
Bonds,
Build
America
Taxable
Bonds,
Series
2010D,
6.229%,
11/15/34
No
Opt.
Call
2,086,269
3,180
Illinois
International
Port
District,
Revenue
Bonds,
Taxable
Refunding
Series
2020,
5.000%,
1/01/35,
144A
1/26
at
101.00
2,862,231
1,714
Illinois
State,
General
Obligation
Bonds,
Build
America
Taxable
Bonds,
Series
2010-5,
7.350%,
7/01/35
No
Opt.
Call
1,863,814
12,956
(c)
Illinois
State,
General
Obligation
Bonds,
Taxable
Build
America
Bonds,
Series
2010-3,
6.725%,
4/01/35
No
Opt.
Call
13,659,683
10,312
(c)
Illinois
Toll
Highway
Authority,
Toll
Highway
Revenue
Bonds,
Taxable
Build
America
Bond
Senior
Lien
Series
2009A,
6.184%,
1/01/34
No
Opt.
Call
11,345,136
2,420
(c)
Illinois
Toll
Highway
Authority,
Toll
Highway
Revenue
Bonds,
Taxable
Build
America
Bond
Senior
Lien
Series
2009B,
5.851%,
12/01/34
No
Opt.
Call
2,612,084
400
Northern
Illinois
Municipal
Power
Agency,  Power
Project
Revenue
Bonds,
Prairie
State
Project,
Build
America
Bond
Series
2009C,
6.859%,
1/01/39
No
Opt.
Call
439,532
1,375
Northern
Illinois
Municipal
Power
Agency,  Power
Project
Revenue
Bonds,
Prairie
State
Project,
Build
America
Taxable
Bond
Series
2010A,
7.820%,
1/01/40
No
Opt.
Call
1,664,952
Total
Illinois
59,163,175
Indiana
-
1.2%
(0.8%
of
Total
Investments)
1,000
Indianapolis
Local
Public
Improvement
Bond
Bank,
Indiana,
Build
America
Taxable
Bonds,
Series
2010B-2,
6.116%,
1/15/40
No
Opt.
Call
1,090,160
5,000
Knox
County,
Indiana,
Economic
Development
Revenue
Bonds,
Good
Samaritan
Hospital
Project,
Taxable
Series
2012B,
5.900%,
4/01/34
No
Opt.
Call
4,896,150
Total
Indiana
5,986,310
Kentucky
-
1.7%
(1.1%
of
Total
Investments)
5
Kentucky
Municipal
Power
Agency,
Power
System
Revenue
Bonds,
Prairie
State
Project,
Build
America
Bond
Series
2010B,
6.490%,
9/01/37
-
AGM
Insured
1/24
at
100.00
5,004
5,450
(c)
Louisville
and
Jefferson
County
Metropolitan
Sewer
District,
Kentucky,
Sewer
and
Drainage
System
Revenue
Bonds,
Build
America
Taxable
Bonds
Series
2010A,
6.250%,
5/15/43
No
Opt.
Call
6,224,577
5
Principal
Amount
(000)
Description
(a)
Optional
Call
Provisions
(b)
Value
Kentucky
(continued)
$
2,260
Newport,
Kentucky,
Industrial
Building
Revenue
Bonds,
South
Beach
1,
LLC
Project,
Taxable
Refunding
Series
2022,
4.125%,
3/01/33
No
Opt.
Call
$
2,047,472
Total
Kentucky
8,277,053
Maryland
-
2.8%
(1.9%
of
Total
Investments)
2,000
Maryland
Economic
Development
Corporation,
Economic
Development
Revenue
Bonds,
Terminal
Project,
Refunding
Series
2017B,
4.550%,
6/01/35
No
Opt.
Call
1,750,663
Maryland
Economic
Development
Corporation,
Parking
Facilities
Revenue
Bonds
Baltimore
City
Project,
Senior
Parking
Facilities
Revenue,
Series
2018B
:
1,500
4.580%,
6/01/33
6/28
at
100.00
1,373,258
2,945
4.790%,
6/01/38
6/28
at
100.00
2,548,228
4,285
5.050%,
6/01/43
6/28
at
100.00
3,594,982
5,350
5.320%,
6/01/51
6/28
at
100.00
4,483,003
Total
Maryland
13,750,134
Massachusetts
-
1.1%
(0.7%
of
Total
Investments)
4,000
(d)
Massachusetts,
Transporation
Fund
Revenue
Bonds,
Accelerated
Bridge
Program,
Tender
Option
Bond
Trust
2016-XFT907,
4.136%,
6/01/40,
144A,
(IF)
No
Opt.
Call
5,318,902
Total
Massachusetts
5,318,902
Minnesota
-
0.4%
(0.3%
of
Total
Investments)
1,855
Western
Minnesota
Municipal
Power
Agency,
Minnesota,
Power
Supply
Revenue
Bonds,
Build
America
Taxable
Bond
Series
2010C,
6.770%,
1/01/46
No
Opt.
Call
2,227,721
Total
Minnesota
2,227,721
Mississippi
-
0.4%
(0.3%
of
Total
Investments)
2,085
Mississippi
State,
General
Obligation
Bonds,
Taxable
Build
America
Bond
Series
2010F,
5.245%,
11/01/34
No
Opt.
Call
2,152,324
Total
Mississippi
2,152,324
Missouri
-
0.2%
(0.2%
of
Total
Investments)
1,000
Missouri
Joint
Municipal
Electric
Utility
Commission,
Power
Project
Revenue
Bonds,
Pairie
State
Power
Project,
Federally
Taxable
Build
America
Bonds
-
Direct
Pay,
Series
2009A,
6.890%,
1/01/42
No
Opt.
Call
1,134,822
Total
Missouri
1,134,822
New
Jersey
-
4.1%
(2.8%
of
Total
Investments)
3,320
New
Jersey
Educational
Facilities
Authority,
Revenue
Bonds,
Seton
Hall
University,
Taxable
Series
2020D,
3.958%,
7/01/48
-
AGM
Insured
7/30
at
100.00
2,531,021
3,000
New
Jersey
Turnpike
Authority,
Revenue
Bonds,
Build
America
Taxable
Bonds,
Series
2009F,
7.414%,
1/01/40
No
Opt.
Call
3,745,048
8,805
New
Jersey
Turnpike
Authority,
Revenue
Bonds,
Build
America
Taxable
Bonds,
Series
2010A,
7.102%,
1/01/41
No
Opt.
Call
10,664,696
2,000
Rutgers
State
University,
New
Jersey,
Revenue
Bonds,
Taxable
Build
America
Bond
Series
2010H,
5.665%,
5/01/40
No
Opt.
Call
2,131,726
870
South
Jersey
Port
Corporation,
New
Jersey,
Marine
Terminal
Revenue
Bonds,
Taxable
Build
America
Bond
Series
2009P-3,
7.365%,
1/01/40
No
Opt.
Call
988,733
530
South
Jersey
Transportation
Authority,
New
Jersey,
Transportation
System
Revenue
Bonds,
Build
America
Bond
Series
2009A-5,
7.000%,
11/01/38
No
Opt.
Call
577,971
Total
New
Jersey
20,639,195
Nuveen
Taxable
Municipal
Income
Fund
(continued)
Portfolio
of
Investments
December
31,
2023
(Unaudited)
6
NBB
Principal
Amount
(000)
Description
(a)
Optional
Call
Provisions
(b)
Value
New
York
-
27.9%
(19.2%
of
Total
Investments)
$
420
Babylon
Local
Development
Corporation
II,
New
York,
Education
Revenue
Bonds,
The
Academy
Charter
School
Project,
Taxable
Series
2023B,
7.250%,
2/01/27
No
Opt.
Call
$
423,809
Dormitory
Authority
of
the
State
of
New
York,
Revenue
Bonds,
Montefiore
Obligated
Group,
Taxable
Series
2018B
:
10,000
5.096%,
8/01/34
No
Opt.
Call
9,003,308
1,415
4.946%,
8/01/48
-
AGM
Insured
8/28
at
100.00
1,297,669
25,000
(d)
Dormitory
Authority
of
the
State
of
New
York,
State
Personal
Income
Tax
Revenue
Bonds,
Build
America
Taxable
Bonds,
Series
2010D,
5.600%,
3/15/40,
(UB)
No
Opt.
Call
26,204,648
Dormitory
Authority
of
the
State
of
New
York,
State
Personal
Income
Tax
Revenue
Bonds,
Tender
Option
Bond
Trust
30020
:
2,000
(d)
3.746%,
3/15/40,
144A,
(IF)
No
Opt.
Call
2,481,859
5,100
(c)
Long
Island
Power
Authority,
New
York,
Electric
System
Revenue
Bonds,
Build
America
Taxable
Bond
Series
2010B,
5.850%,
5/01/41
No
Opt.
Call
5,572,798
680
Metropolitan
Transportation
Authority,
New
York,
Dedicated
Tax
Fund
Bonds,
Build
America
Taxable
Bonds,
Series
2010C,
7.336%,
11/15/39
No
Opt.
Call
846,220
7,000
Metropolitan
Transportation
Authority,
New
York,
Transportation
Revenue
Bonds,
Build
America
Taxable
Bonds,
Series
2009A-1,
5.871%,
11/15/39
No
Opt.
Call
7,198,119
2,090
Metropolitan
Transportation
Authority,
New
York,
Transportation
Revenue
Bonds,
Build
America
Taxable
Bonds,
Series
2010B-1,
6.548%,
11/15/31
No
Opt.
Call
2,211,010
10,925
(c)
Metropolitan
Transportation
Authority,
New
York,
Transportation
Revenue
Bonds,
Federally
Taxable
Build
America
Bonds,
Series
2010E,
6.814%,
11/15/40
No
Opt.
Call
12,136,200
11,390
(c)
Metropolitan
Transportation
Authority,
New
York,
Transportation
Revenue
Bonds,
Federally
Taxable
Issuer
Subsidy
Build
America
Bonds,
Series
2010A,
6.668%,
11/15/39
No
Opt.
Call
12,584,191
5,610
Metropolitan
Transportation
Authority,
New
York,
Transportation
Revenue
Bonds,
Taxable
Green
Climate
Certified
Series
2020C-2,
5.175%,
11/15/49
No
Opt.
Call
5,492,176
3,675
Monroe
County
Industrial
Development
Corporation,
New
York,
Revenue
Bonds,
Rochester
Regional
Health
Project,
Taxable
Series
2020B,
4.600%,
12/01/46
No
Opt.
Call
3,018,963
New
York
City
Industrial
Development
Agency,
New
York,
Installment
Purchase
and
Lease
Revenue
Bonds,
Queens
Baseball
Stadium
Project,
Series
2006
:
2,000
6.027%,
1/01/46
-
AGM
Insured
No
Opt.
Call
2,069,997
890
6.027%,
1/01/46
-
AMBAC
Insured,
144A
No
Opt.
Call
921,148
545
New
York
City
Industrial
Development
Authority,
New
York,
Rental
Revenue
Bonds,
Yankee
Stadium
Project,
Taxable
Series
2009,
11.000%,
3/01/29
-
AGM
Insured,
144A
No
Opt.
Call
631,636
1,500
(c)
New
York
City
Municipal
Water
Finance
Authority,
New
York,
Water
and
Sewer
System
Revenue
Bonds,
Second
Generation
Resolution,
Build
America
Taxable
Bonds,
Fiscal
2011
Series
AA,
5.440%,
6/15/43
No
Opt.
Call
1,590,580
2,595
New
York
City
Municipal
Water
Finance
Authority,
New
York,
Water
and
Sewer
System
Revenue
Bonds,
Second
Generation
Resolution,
Build
America
Taxable
Bonds,
Series
2010DD,
5.952%,
6/15/42
No
Opt.
Call
2,907,820
2,025
New
York
City
Municipal
Water
Finance
Authority,
New
York,
Water
and
Sewer
System
Revenue
Bonds,
Second
Generation
Resolution,
Build
America
Taxable
Bonds,
Series
2010DD,
5.952%,
6/15/42,
(UB)
No
Opt.
Call
2,269,108
7
Principal
Amount
(000)
Description
(a)
Optional
Call
Provisions
(b)
Value
New
York
(continued)
New
York
City
Municipal
Water
Finance
Authority,
New
York,
Water
and
Sewer
System
Revenue
Bonds,
Second
Generation
Resolution,
Taxable
Tender
Option
Bonds
Trust
T30001-2
:
$
3,595
5.822%,
6/15/44,
144A,
(IF)
No
Opt.
Call
$
5,676,802
10,550
(c)
New
York
City
Transitional
Finance
Authority,
New
York,
Building
Aid
Revenue
Bonds,
Fiscal
2011
Taxable
Build
America
Bond
Series
2010S-1B,
6.828%,
7/15/40
No
Opt.
Call
12,065,856
10,000
(c)
New
York
City
Transitional
Finance
Authority,
New
York,
Future
Tax
Secured
Bonds,
Build
America
Taxable
Bonds,
Series
2010G-1,
5.467%,
5/01/40
No
Opt.
Call
10,104,446
Westchester
County
Health
Care
Corporation,
New
York,
Senior
Lien
Revenue
Bonds,  Refunding
Series
2010A
:
5,495
8.572%,
11/01/40
No
Opt.
Call
5,612,512
3,450
8.572%,
11/01/40
No
Opt.
Call
3,523,812
2,970
Westchester
County
Health
Care
Corporation,
New
York,
Senior
Lien
Revenue
Bonds,
Series
2010-C1,
8.572%,
11/01/40
-
AGM
Insured
No
Opt.
Call
3,626,564
Total
New
York
139,471,251
Ohio
-
6.4%
(4.4%
of
Total
Investments)
American
Municipal
Power
Inc.,
Ohio,
Combined
Hydroelectric
Projects
Revenue
Bonds,
Build
America
Bond
Series
2010B
:
6,350
(c)
7.834%,
2/15/41
No
Opt.
Call
7,943,511
1,000
8.084%,
2/15/50
No
Opt.
Call
1,354,807
1,500
American
Municipal
Power
Inc.,
Ohio,
Meldahl
Hydroelectric
Projects
Revenue
Bonds,
Build
America
Bond
Series
2010B,
7.499%,
2/15/50
No
Opt.
Call
1,858,079
7,040
(c)
American
Municipal
Power
Ohio
Inc.,
Prairie
State
Energy
Campus
Project
Revenue
Bonds,
Build
America
Bond
Series
2009C,
6.053%,
2/15/43
No
Opt.
Call
7,607,989
1,700
Cincinnati
City
School
District,
Ohio,
Certificates
of
Participation,
School
Energy
Conservation
Improvement
Project,
Taxable
Series
2012,
5.150%,
6/15/32
No
Opt.
Call
1,731,665
2,300
Columbus
Regional
Airport
Authority,
Ohio,
Customer
Facility
Charge
Revenue
Bonds,
Taxable
Series
2019,
4.199%,
12/15/48
12/29
at
100.00
1,952,965
10,575
Port
of
Greater
Cincinnati
Development
Authority,
Ohio,
Special
Obligation
Tax
Increment
Financing
Revenue
Bonds,
Cooperative
Township
Public
Parking
Project,
Kenwood
Collection
Redevelopment,
Refunding
Senior
Lien
Series
2016A,
6.600%,
1/01/39
1/26
at
100.00
9,537,605
Total
Ohio
31,986,621
Oklahoma
-
3.5%
(2.4%
of
Total
Investments)
19,200
Oklahoma
Development
Finance
Authority,
Health
System
Revenue
Bonds,
OU
Medicine
Project,
Taxable
Series
2018D,
5.450%,
8/15/28
No
Opt.
Call
17,253,827
Total
Oklahoma
17,253,827
Oregon
-
0.4%
(0.3%
of
Total
Investments)
2,450
Port
of
Portland,
Oregon,
Portland
International
Airport
Customer
Facility
Charge
Revenue
Bonds,
Taxable
Series
2019,
4.237%,
7/01/49
7/29
at
100.00
2,046,313
Total
Oregon
2,046,313
Pennsylvania
-
1.4%
(0.9%
of
Total
Investments)
1,915
Commonwealth
Financing
Authority,
Pennsylvania,
State
Appropriation
Lease
Bonds,
Build
America
Taxable
Bonds,
Series
2009D,
6.218%,
6/01/39
No
Opt.
Call
2,054,847
1,640
Pennsylvania
Turnpike
Commission,
Turnpike
Revenue
Bonds,
Build
America
Taxable
Bonds,
Series
2009A,
6.105%,
12/01/39
No
Opt.
Call
1,826,269
Nuveen
Taxable
Municipal
Income
Fund
(continued)
Portfolio
of
Investments
December
31,
2023
(Unaudited)
8
NBB
Principal
Amount
(000)
Description
(a)
Optional
Call
Provisions
(b)
Value
Pennsylvania
(continued)
$
2,715
(c)
Pennsylvania
Turnpike
Commission,
Turnpike
Revenue
Bonds,
Build
America
Taxable
Bonds,
Series
2010B,
5.511%,
12/01/45
No
Opt.
Call
$
2,868,027
Total
Pennsylvania
6,749,143
South
Carolina
-
3.5%
(2.4%
of
Total
Investments)
South
Carolina
Public
Service
Authority,
Electric
System
Revenue
Bonds,
Santee
Cooper,
Federally
Taxable
Build
America
Series
2010C
:
8,985
6.454%,
1/01/50,
(UB)
No
Opt.
Call
10,148,087
2,000
6.454%,
1/01/50
-
AGM
Insured
No
Opt.
Call
2,287,850
1,550
6.454%,
1/01/50
No
Opt.
Call
1,750,644
205
South
Carolina
Public
Service
Authority,
Electric
System
Revenue
Bonds,
Santee
Cooper,
Federally
Taxable
Build
America
Tender
Option
Bond
Trust
T30002,
7.520%,
1/01/50,
144A,
(IF)
No
Opt.
Call
337,683
2,585
South
Carolina
Public
Service
Authority,
Santee
Cooper
Revenue
Obligations,
Refunding
Series
2013C,
5.784%,
12/01/41
-
AGM
Insured
No
Opt.
Call
2,728,819
Total
South
Carolina
17,253,083
Tennessee
-
4.4%
(3.1%
of
Total
Investments)
1,500
Jackson,
Tennessee,
Hospital
Revenue
Bonds,
Jackson-Madison
County
General
Hospital
Project,
Series
2018B,
5.308%,
4/01/48
No
Opt.
Call
1,446,745
Memphis/Shelby
County
Economic
Development
Growth
Engine
Industrial
Development
Board,
Tennessee,
Tax
Increment
Revenue
Bonds,
Graceland
Project,
Senior
Taxable
Series
2017B
:
6,280
5.200%,
7/01/37
7/27
at
100.00
5,099,690
1,515
5.450%,
7/01/45
7/27
at
100.00
1,124,111
5,010
(c)
Metropolitan
Government
Nashville
&
Davidson
County
Convention
Center
Authority,
Tennessee,
Tourism
Tax
Revenue
Bonds,
Build
America
Taxable
Bonds,
Series
2010A-2,
7.431%,
7/01/43
No
Opt.
Call
6,037,735
7,350
(c)
Metropolitan
Government
Nashville
&
Davidson
County
Convention
Center
Authority,
Tennessee,
Tourism
Tax
Revenue
Bonds,
Build
America
Taxable
Bonds,
Subordinate
Lien
Series
2010B,
6.731%,
7/01/43
No
Opt.
Call
8,392,540
Total
Tennessee
22,100,821
Texas
-
10.1%
(6.9%
of
Total
Investments)
2,520
Dallas
Area
Rapid
Transit,
Texas,
Sales
Tax
Revenue
Bonds,
Taxable
Build
America
Bonds,
Series
2009B,
5.999%,
12/01/44
No
Opt.
Call
2,822,343
16,460
(c)
Dallas
Convention
Center
Hotel
Development
Corporation,
Texas,
Hotel
Revenue
Bonds,
Build
America
Taxable
Bonds,
Series
09B,
7.088%,
1/01/42
No
Opt.
Call
18,806,493
1,000
Fort
Worth,
Tarrant,
Denton,
Parker,
Johnson,
and
Wise
Counties,
Texas,
Special
Tax
Revenue
Bonds,
Taxable
Series
2017B,
4.238%,
3/01/47
9/24
at
100.00
857,348
1,925
Houston,
Texas,
Airport
System
Special
Facilities
Revenue
Bonds,
Consolidated
Rental
Car
Facility
Project,
Taxable
Series
2001,
6.880%,
1/01/28
-
NPFG
Insured
No
Opt.
Call
1,996,986
10,285
(c)
North
Texas
Tollway
Authority,
System
Revenue
Bonds,
Taxble
Build
America
Bond
Series
2009B,
6.718%,
1/01/49
No
Opt.
Call
12,721,117
San
Antonio,
Texas,
Customer
Facility
Charge
Revenue
Bonds,
Rental
Car
Special
Facilities
Project,
Series
2015
:
7,545
5.671%,
7/01/35
7/25
at
100.00
7,475,761
2,000
5.871%,
7/01/45
7/25
at
100.00
1,916,865
1,000
San
Antonio,
Texas,
Electric
and
Gas
System
Revenue
Bonds,
Junior
Lien,
Build
America
Taxable
Bond
Series
2010A,
5.808%,
2/01/41
No
Opt.
Call
1,075,703
10
San
Antonio,
Texas,
Electric
and
Gas
System
Revenue
Bonds,
Series
2012,
4.427%,
2/01/42
No
Opt.
Call
9,441
9
Principal
Amount
(000)
Description
(a)
Optional
Call
Provisions
(b)
Value
Texas
(continued)
Tarrant
County
Cultural
Education
Facilities
Finance
Corporation,
Texas,
Hospital
Revenue
Bonds,
Hendrick
Medical
Center,
Taxable
Series
2021
:
$
1,000
3.292%,
9/01/40
-
AGM
Insured
9/30
at
100.00
$
790,462
1,400
3.422%,
9/01/50
-
AGM
Insured
9/30
at
100.00
1,004,007
1,000
Texas
Private
Activity
Bond
Surface
Transporation
Corporation,
Revenue
Bonds,
NTE
Mobility
Partners
LLC
North
Tarrant
Express
Managed
Lanes
Project,
Taxable
Refunding
Senior
Lien
Series
2019B,
3.922%,
12/31/49
No
Opt.
Call
812,955
Total
Texas
50,289,481
Utah
-
1.5%
(1.0%
of
Total
Investments)
8,500
Salt
Lake
County,
Utah,
Convention
Hotel
Revenue
Bonds,
Taxable
Series
2019,
5.750%,
10/01/47,
144A
10/29
at
100.00
7,441,307
Total
Utah
7,441,307
Virginia
-
3.2%
(2.2%
of
Total
Investments)
1,840
Fredericksburg
Economic
Development
Authority,
Virginia,
Revenue
Bonds,
Fredericksburg
Stadium
Project,
Taxable
Series
2019A,
5.500%,
9/01/49,
144A
9/29
at
100.00
1,769,189
10,575
Tobacco
Settlement
Financing
Corporation
of
Virginia,
Tobacco
Settlement
Asset
Backed
Bonds,
Refunding
Senior
Lien
Series
2007A,
6.706%,
6/01/46
6/25
at
100.00
9,094,591
5,325
Virginia
Small
Business
Finance
Authority,
Tourism
Development
Financing
Program
Revenue
Bonds,
Downtown
Norfolk
and
Virginia
Beach
Oceanfront
Hotel
Projects,
Series
2018B,
12.000%,
4/01/48,
144A
4/28
at
117.16
5,377,330
Total
Virginia
16,241,110
Washington
-
7.1%
(4.9%
of
Total
Investments)
4,000
(d)
Seattle,
Washington,
Municipal
Light
and
Power
Revenue
Bonds,
Federally
Taxable
Build
America
Bonds,
Tender
Option
Bond
Trust
2016-XFT905,
Formerly
Tender
Option
Bond
Trust
T0001,
3.055%,
2/01/40,
144A,
(IF)
No
Opt.
Call
4,976,018
27,830
Washington
State
Convention
Center
Public
Facilities
District,
Lodging
Tax
Revenue
Bonds,
Build
America
Taxable
Bond
Series
2010B,
6.790%,
7/01/40
No
Opt.
Call
30,360,699
Total
Washington
35,336,717
West
Virginia
-
3.1%
(2.1%
of
Total
Investments)
Tobacco
Settlement
Finance
Authority,
West
Virginia,
Tobacco
Settlement
Asset-Backed
Bonds,
Taxable
Refunding
Class
1
Senior
Series
2020A
:
8,500
4.006%,
6/01/40
12/30
at
100.00
6,711,708
10,800
4.306%,
6/01/49
12/30
at
100.00
8,533,707
Total
West
Virginia
15,245,415
Wisconsin
-
0.9%
(0.7%
of
Total
Investments)
480
Fond
du
Lac
County,
Wisconsin,
Revenue
Bonds,
Bug
Tussel
1
LLC
Project,
Taxable
Social
Series
2022A,
5.569%,
11/01/51
-
BAM
Insured,
144A
11/31
at
100.00
469,690
2,360
Fond
du
Lac
County,
Wisconsin,
Revenue
Bonds,
Bug
Tussel
1
LLC
Project,
Taxable
Social
Series
2023,
6.434%,
11/01/52
-
BAM
Insured,
144A
11/33
at
100.00
2,474,048
Nuveen
Taxable
Municipal
Income
Fund
(continued)
Portfolio
of
Investments
December
31,
2023
(Unaudited)
10
NBB
Investments
in
Derivatives
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
(a)
Optional
Call
Provisions
(b)
Value
Wisconsin
(continued)
$
2,000
Wisconsin
Center
District,
Dedicated
Tax
Revenue
Bonds,
Supported
by
State
Moral
Obligation
Taxable
Senior
Series
2020A,
4.473%,
12/15/47
-
AGM
Insured
12/30
at
100.00
$
1,750,107
Total
Wisconsin
4,693,845
Total
Municipal
Bonds
(cost
$745,143,561)
726,236,539
Total
Long-Term
Investments
(cost
$745,143,561)
726,236,539
Floating
Rate
Obligations
-
(7.4)%
(
36,810,000
)
Reverse
Repurchase
Agreements,
including
accrued
interest
-
(46.4)%(e)
(
232,133,922
)
Other
Assets
&
Liabilities,
Net
-  8.5%
42,604,877
Net
Assets
Applicable
to
Common
Shares
-
100%
$
499,897,494
Futures
Contracts
-
Short
Description
Number
of
Contracts
Expiration
Date
Notional
Amount
Value
Unrealized
Appreciation
(Depreciation)
U.S.
Treasury
Ultra
Bond
(916)
3/24
$
(
111,479,812
)
$
(
122,371,875
)
$
(
10,892,063
)
Level
1
Level
2
Level
3
Total
Long-Term
Investments:
Municipal
Bonds
$
–
$
726,236,539
$
–
$
726,236,539
Investments
in
Derivatives:
Futures
Contracts*
(
10,892,063
)
–
–
(
10,892,063
)
Total
$
(
10,892,063
)
$
726,236,539
$
–
$
715,344,476
*
Represents
net
unrealized
appreciation
(depreciation).
11
(a)
All
percentages
shown
in
the
Portfolio
of
Investments
are
based
on
net
assets
applicable
to
common
shares
unless
otherwise
noted.
(b)
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.
(c)
Investment,
or
portion
of
investment,
has
been
pledged
to
collateralize
the
net
payment
obligations
for
investments
in
reverse
repurchase
agreements.
As
of
the
end
of
the
reporting
period,
investments
with
a
value
of
$244,849,920
have
been
pledged
as
collateral
for
reverse
repurchase
agreements.
(d)
Investment,
or
portion
of
investment,
has
been
pledged
to
collateralize
the
net
payment
obligations
for
investments
in
inverse
floating
rate
transactions.
(e)
Reverse
Repurchase
Agreements,
including
accrued
interest
as
a
percentage
of
Total
investments
is
32.0%.
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.
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.
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