Movers Roundup: Yahoo, Dyax

Among the stock activity stories for Thursday, Sept. 10, from AP Financial News:

PHILADELPHIA (AP) — Shares of Yahoo Inc. soared after an analyst upgraded the stock based on his expectations of an advertising recovery and positive longer-term outlook for the Internet search giant.

NEW YORK (AP) — Shares of Dyax Corp. jumped after a ThinkEquity analyst started coverage at "Buy," saying the biopharmaceutical company's key drug candidate will likely be approved by the end of the year and launched early in 2010.

HARTFORD, Conn. (AP) — Shares of Korn/Ferry International advanced again, a day after the staffing company's adjusted fiscal first-quarter results beat Wall Street estimates.

SAN FRANCISCO (AP) — The CEO of the world's biggest pork producer, Smithfield Foods, said that it will focus more on its packaged-meat business and less on fresh pork to improve profitability and reduce volatility.