GoPro stock is soaring after YouTube star Markiplier buys an 8.5% stake

For most of August, shares of GoPro traded for about 60 cents as the once-lauded action-camera maker faded toward what seemed like a near-certain delisting and possible collapse. But as September kicks off, the stock is soaring, at least compared with its previous levels. Shares were up nearly 80% at one point Tuesday as investors found renewed hope for the company. And it’s all thanks to a YouTube creator. Mark Fischbach, better known to many as Markiplier, has bought an 8.5% stake in the company. For some investors, the move is evoking the early days of GameStop and Roaring Kitty. “I saw the stock and where it was, I was like that seems undervalued,” Fischbach told Bloomberg. “It’s just something I’ve been cooking in the background; I want the company to succeed.” That sounds a lot like the case investor Keith Gill made for GameStop before the U.S. House Financial Services Committee in 2021. Gill acknowledged that the stock price “may have gotten a bit ahead of itself,” but argued that the struggling retailer still had a real chance to reinvent itself. “In short, I like the stock,” he said. “I believed—and I continue to believe—that GameStop has the potential to reinvent itself.…