SIMPSON THACHER & BARTLETT
425 Lexington Avenue
New York, NY 10017
May 15, 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 statement of additional information for
Investor A, Investor B, Investor C, Service and Institutional Shares of the
Company's Global Science & Technology Portfolio, each dated May 10, 2000,
that would have been filed on behalf of the Company in accordance with Rule
497(c) do not differ from those contained in Post-Effective Amendment No. 54
to the Company's Registration Statement on Form N-1A, the text of which was
filed electronically with the Securities and Exchange Commission on May 10,
2000.
Any questions or communications should be directed to David Wohl of this
firm at 212-455-7937.
Very truly yours,
/s/ Simpson Thacher & Bartlett
SIMPSON THACHER & BARTLETT
cc: Brian P. Kindelan, Esq.
Randolph Koch
