Definitive Materials Filed by Investment Companies. (497)
22 Februar 2013 - 5:49PM
Edgar (US Regulatory)
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SIDLEY AUSTIN
LLP
787 SEVENTH AVENUE
NEW YORK, NY 10019
(212) 839 5300
(212) 839 5599
FAX
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BEIJING
BRUSSELS
CHICAGO
DALLAS
FRANKFURT
GENEVA
HONG KONG
HOUSTON
LONDON
FOUNDED 1866
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LOS ANGELES
NEW YORK
PALO ALTO
SAN FRANCISCO
SHANGHAI
SINGAPORE
SYDNEY
TOKYO
WASHINGTON, D.C.
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February 22, 2013
VIA EDGAR
Securities and Exchange Commission
100 F Street, NE
Washington, DC 20549
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Re:
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BlackRock Small Cap Growth Equity Portfolio, a series of BlackRock Funds
SM
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(File Nos. 33-26305, 811-05742)
Ladies and Gentlemen:
On behalf of BlackRock Funds
SM
, attached for filing are exhibits containing interactive data format risk/return summary information that mirrors the
risk/return summary information in the Service Shares Prospectus of BlackRock Small Cap Growth Equity Portfolio (the Fund), dated January 28, 2013, as filed pursuant to Rule 497(e) under the Securities Act of 1933, on February 4,
2013 (the 497 Filing). The purpose of this filing is to submit the 497 Filing in XBRL for the Fund.
Any questions
or comments on the 497 Filing should be directed to the undersigned at (212) 839-5583.
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Very truly yours,
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/s/ Ellen W. Harris
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Ellen W. Harris
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Enclosures
cc:
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Benjamin Archibald, Esq.
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BlackRock Advisors, LLC
Sidley Austin (
NY
)
LLP
is a Delaware limited liability partnership doing business as Sidley Austin
LLP
and practicing in affiliation with other Sidley Austin
partnerships.