Movers roundup: Pandora, Zynga

The Associated Press

Among the stock activity stories for Tuesday, June 12, from AP Business News:

— Shares of online radio service Pandora Inc. fell after an analyst pointed out that upstart music app Songza had become one of Apple's most downloaded free apps.

— Shares of Zynga Inc. dropped to their lowest level since the online game company's December initial public stock offering amid growing concerns about its ability to attract new users and keep old ones.