Computer Sciences

(CSC)

said its $16-a-share cash tender offer for

Mynd

(YND)

will be extended until Dec. 29.

Computer Sciences' $566 million offer for Mynd, a provider of software and services for insurance and financial services companies, needs approval from the

Federal Trade Commission

. About 72% of Mynd's shares outstanding have been tendered.

In

New York Stock Exchange

action, Computer Sciences closed up 94 cents, or 1.3%, to $73.94, and Mynd closed up 31 cents, or 2.7%, $11.75.