Stocks that have made big moves on no news and so may have been affected by a possible technical...

|By:, SA News Editor

Stocks that have made big moves on no news and so may have been affected by a possible technical problem at Knight Capital include RadioShack (RSH +5.8%), Quicksilver Resource (KWK +3.3%), Magnum Hunter Resources (MHR +4.2%) and Dole Food (DOLE +1.4%). Knight says it's investigating.