GRAPEVINE, Texas — Shares of GameStop rose 2.61%, or 61 cents, to $24.01 as of 10:12 a.m. Eastern time on Monday, even as the broader U.S. market slipped, following a rally driven by heavy insider buying and by CEO Ryan Cohen's continued pursuit of online marketplace eBay.

None of the coverage reviewed identified a company-specific announcement behind Monday's gain. The stock closed Friday at about $23.40 after pulling back on profit-taking following a week-long rally driven by insider buying, Benzinga reported. GameStop's market capitalization is about $11.8 billion, with a trailing price-to-earnings ratio of about 15.4, according to Yahoo Finance, and its shares have traded between $17.79 and $28.10 over the past year, according to Robinhood data. The company's next earnings report is estimated for December 8, according to Yahoo Finance. The Dow Jones Industrial Average was down roughly 0.6% in early trading as oil prices and Treasury yields jumped.

The recent story around GameStop has centered on insiders. A regulatory filing dated September 10 showed Cohen bought one million shares at $20.3759 each, or about $20.4 million, and a director bought the same day, according to a report syndicated by Yahoo Finance. Yahoo's stock page later highlighted a $26.4 million purchase by Cohen, and TipRanks reported he bought 1.15 million shares in a filing around September 19, while a director bought $402,000 in common stock on September 22. One analysis argued that a chief executive writing personal........

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