EX-99.906 CERT

                                  CERTIFICATION


Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and
(b) of section 1350, chapter 63 of title 18, United States Code), each of the
undersigned officers of The Alger Institutional Fund does hereby certify, to
such officer's knowledge, that:

The semi-annual report on Form N-CSR of The Alger Institutional Fund for the
period ended April 30, 2003 (the "Form N-CSR") fully complies with the
requirements of 13(a) or 15(d) of the Securities Exchange Act of 1934 and
information contained in the Form N-CSR fairly presents, in all material
respects, the financial condition and results of operations of The Alger
Institutional Fund.



Dated: July 8, 2003

/s/ Fred M. Alger
- -----------------
Fred M. Alger
Chairman and President
THE ALGER INSTITUTIONAL FUND


Dated: July 8, 2003

/s/ Gregory S. Duch
- -------------------
Gregory S. Duch
Treasurer
THE ALGER INSTITUTIONAL FUND


A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature that
appears in typed form within the electronic version of this written statement
required by Section 906, has been provided to The Alger Institutional Fund and
will be retained by The Alger Institutional Fund and furnished to the Securities
and Exchange Commission or its staff upon request.

This certification is being furnished solely pursuant to 18 U.S.C. ss. 1350 and
is not being filed as part of the Report or as a separate disclosure document.