Movers roundup: Aladdin Knowledge, Circuit City

Among the stock activity stories for Thursday, Aug. 28, from AP Financial News:

NEW YORK (AP) _ Shares of Aladdin Knowledge Systems Ltd. declined Thursday after the Israel-based computer security company rejected offers from Vector Capital to buy either the whole company or its digital rights management business _ calling the bids too low.

RICHMOND, Va. (AP) _ Shares of Circuit City Stores Inc. rose Thursday after hitting a roughly 20-year low the day before.

NEW YORK (AP) _ Sovereign Bancorp Inc.'s stock rebounded Thursday as shares of government-backed mortgage finance companies Fannie Mae and Freddie Mac rose for the fourth straight session.

NEW YORK (AP) _ Shares of FirstFed Financial Corp. jumped Thursday after a Keefe, Bruyette & Woods analyst questioned whether a certain type of short-selling might be affecting the stock.

NEW YORK (AP) _ Giant Interactive Group Inc. shares fell Thursday after the company reported second-quarter earnings that met analysts' views but declined to give third-quarter guidance, which prompted an analyst to downgrade the stock.