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LAW OFFICES OF
DECHERT PRICE & RHOADS
1775 Eye Street, N.W.
Washington, D.C. 20006-2104
May 5, 1999
VIA EDGAR
Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549
Re: The MainStay Institutional Funds, Inc.
File No. 333-36962
Dear Sir or Madam:
On behalf of MainStay Institutional Funds, Inc. (the "Fund"), we hereby
certify, pursuant to Rule 497(j) under the Securities Act of 1933, that (i) the
form of Prospectuses and Statements of Additional Information that the Fund
would have filed pursuant to Rule 497(c) would not have differed from those
filed on April 30,1999 as part of the Fund's most recent registration statement,
and (ii) the text of the Fund's most recent registration statement was filed
electronically on April 30,1999.
No fees are required in connection with this filing. If you have any
questions concerning the attached filing, please do not hesitate to contact the
undersigned at (202)261-3358 or Michael J. McDonough at (202)261-3378.
Very truly yours,
/s/ Jeffrey L. Steele
Attachment
cc: Judy Randall
New York Life Insurance Company
