497 1 d624946d497.htm BLACKROCK FUNDS BLACKROCK FUNDS

 

 

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AMERICA • ASIA PACIFIC • EUROPE

  

October 24, 2018

VIA EDGAR

U.S. Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Re: BlackRock Advantage Small Cap Core Fund (the “Fund”), a series of BlackRock FundsSM

(Securities Act File No. 33-26305, Investment Company Act File No. 811-05742)

Ladies and Gentlemen:

On behalf of BlackRock FundsSM, attached for filing are exhibits containing interactive data format risk/return summary information that mirrors the risk/return summary information in the Prospectuses of the Fund, dated September 28, 2018, as filed pursuant to Rule 497(c) under the Securities Act of 1933, on October 3, 2018 (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) 839-5448.

 

Very truly yours,

/s/ Toi K. Carrion

Toi K. Carrion

Enclosures

 

cc:

Benjamin Archibald, Esq.

BlackRock Advisors, LLC

John A. MacKinnon

Jesse C. Kean

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.