Bitcoin‘s (CRYPTO: BTC) recent surge since late January has sparked concerns among crypto investors about a potential correction. In this context, economist Peter Schiff highlighted a potential red flag on Monday: the underperformance of bitcoin mining stocks compared to the strong performance of Bitcoin itself. What Happened: Schiff pointed out the ongoing weakness of bitcoin mining stocks. “They are getting killed even as Bitcoin is up big and other Bitcoin-related stocks are hitting record highs,” he said. “If I was long Bitcoin I would be worried about this divergence. It could be a sign o…