The late-afternoon pop in SandRidge Energy (SD +3.8%) shares is attributed to ongoing M&A...

|About: SandRidge Energy, Inc. (SD)|By:, SA News Editor

The late-afternoon pop in SandRidge Energy (SD +3.8%) shares is attributed to ongoing M&A speculation following recent activist investor activity led by TPG-Axon, which is pushing to oust SD's board, unlock value by putting the company up for sale, and challenging the company's updated bylaws.