Shares of electronics retailer Best Buy rose 4.5% in late trading on Thursday, with no specific news driving the movement. An analyst from Gordon Haskett informed clients that market speculation suggests GameStop may be considering an acquisition of Best Buy. GameStop CEO Ryan Cohen has previously hinted at an interest in making acquisitions. The company disclosed in its 10-K filing that it has set aside $700 million in collateral for an undisclosed derivatives position. Gordon Haskett stated that GameStop may have already established a position in a potential acquisition target through swaps.