SIMPSON THACHER & BARTLETT
425 Lexington Avenue
New York, NY 10017
December 8, 1999
Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, DC 20549
Attention: Filing Desk
Re: BlackRock FundsSM (Registration
Statement File No. 33-26305)
Ladies and Gentlemen:
On behalf of BlackRock FundsSM (the "Company"), and pursuant to Rule
497(j) of the Securities Act of 1933, as amended, we hereby certify that the
definitive forms of prospectuses and statements of additional information for
the Company's BlackRock Strategic Portfolio I, BlackRock Strategic Portfolio
II and Multi-Sector Mortgage Securities Portfolio III, each dated December 6,
1999, that would have been filed on behalf of the Company in accordance with
Rule 497(c) do not differ from those contained in the most recent amendment
to the Company's Registration Statement on Form N-1A, the text of which was
filed electronically with the Securities and Exchange Commission on December
6, 1999.
Any questions or communications should be directed to Cynthia Cobden of
this firm at 212-455-7744.
Very truly yours,
/s/ Simpson Thacher & Bartlett
SIMPSON THACHER & BARTLETT
cc: Brian P. Kindelan, Esq.
Ed Mallon
Lily R. Chiu
