Cordiant Communications Group stock climbed after last week's agreement by Publicis to acquire Saatchi & Saatchi
in a $2 billion all-stock deal. Cordiant, which owns the Bates Worldwide agency network, saw its stock fall to less than $20 in May after peaking at $32.25 in March, double its price last fall. Announcement of the Saatchi deal renewed speculation that Cordiant, with $9.3 billion in 1999 billings, was the next likely buyout target. In New York trading Friday, Cordiant closed at $25.88, up 18.29% for the week.