GameStop (GME) shares are in the red this morning after the gaming merchandise retailer reported a quarterly sales decline, indicating continued struggle in keeping relevant amid the rise of digital downloads. The NYSE-listed firm did see a meaningful boost to its net income in Q3 to about $77 million. But investors are fixating on top-line weakness as it represents challenges facing its core retail business. More News from Barchart Following the post-earnings decline, GameStop stock is down roughly 39 ...