Shares of Green Dot (GDOT +2.8%) push higher after Piper Jaffray comes out with a note...

|About: Green Dot Corporation (GDOT)|By:, SA News Editor

Shares of Green Dot (GDOT +2.8%) push higher after Piper Jaffray comes out with a note indicating the company is doing well in the face of new competition from American Express' new debit card. In a survey of Wal-Mart stores, only 15% reported a significant loss of debit card market share for Green Dot.