A major deal could be in the works, but don't assume it will happen.

The size mismatch is hard to overlook. GameStop carries a market value of around $12 billion; eBay sits closer to $46 billion. Despite that gap, GameStop

GameStop Corp (NYSE:GME) shares jumped more than 4% in Friday’s after-hours session following reports that the retailer is preparing a formal offer for e-commerce giant eBay Inc (NASDAQ:EBAY). The news also sent eBay stock climbing over 12% as investors processed a deal that would unite the brick-and-mortar retailer with the world’s largest online secondary marketplace.

GameStop is reportedly preparing a bid for eBay, aiming to increase its market value significantly, according to the Wall Street Journal.

Word that GameStop is gearing up to take a swing at buying eBay hit San Jose like a thunderclap yesterday, suddenly putting the e-commerce giant’s hometown headquarters under a very bright spotlight.

GameStop is preparing a bid for eBay. CEO Ryan Cohen is quietly building a stake in the $46bn marketplace as he chases a $100bn company valuation.