Ambac Financial Down 3.1%, Penny Stock Under Siege (ABK) – Comtex Smartrend

Ambac Financial Down 3.1%, Penny Stock Under Siege (ABK)Comtex SmartrendAmbac Financial (NYSE:ABK) is one of today's worst performing penny stocks, down 3.1% to $0.53 on 0x average daily volume. …and more »