SECTION 906 CERTIFICATION

Pursuant to 18 U.S.C.ss. 1350, the undersigned officers of Federated Stock Trust
(the  "Registrant"),  hereby  certify,  to the best of our  knowledge,  that the
Registrant's  Report on Form N-CSR for the period  ended  October  31, 2004 (the
"Report")  fully complies with the  requirements  of Section 13(a) or 15(d),  as
applicable,  of the Securities and Exchange Act of 1934 and that the information
contained in the Report fairly presents, in all material respects, the financial
condition and results of operations of the Registrant.


Dated: December 22, 2004

/s/ J. Christopher Donahue

Title: President, Principal Executive Officer



Dated: December 22, 2004

/s/ Richard J. Thomas

Title: Treasurer, Principal Financial Officer

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.