A123 Systems (AONE +5.7%) pops after Wunderlich's Theodore O'Neill upgrades the maker of...

|About: A123 Systems, Inc. (AONEQ)|By:, SA News Editor

A123 Systems (AONE +5.7%) pops after Wunderlich's Theodore O'Neill upgrades the maker of electric car batteries to Hold. Though worried about A123's cash position and negative gross margin, O'Neill expects the company's sales to get a boost from the pending regulatory approval of top customer Fisker's Karma luxury car. (previously)