SIMPSON THACHER & BARTLETT
425 Lexington Avenue
New York, NY 10017
February 2, 2000
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
(i) Investor, Service and Institutional Shares for each of the Equity, Bond
and Money Market Portfolios of the Company, (ii) BlackRock Shares of the Low
Duration Bond, Core Bond, Intermediate Bond and High Yield Bond Portfolios of
the Company and (iii) the Multi-Sector Mortgage Securities Portfolio IV of
the Company, each dated January 28, 2000, 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 January 28, 2000.
Any questions or communications should be directed to Cynthia G. 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
