最新报道:Mara Holdings, a Bitcoin mining firm, has seen a significant stock surge driven by the cryptocurrency's rally, but analysts question its sustainability. While Mara's shares climbed over 500% in six months amid Bitcoin's price rebound, concerns arise over high operational costs and energy expenses. The company's profitability hinges on Bitcoin's volatile prices and efficient mining operations. Experts warn that without sustained high Bitcoin valuations, Mara's growth may mirror a "cost-driven mirage" rather than a sustainable "gold rush." Investors are advised to weigh the risks of fluctuating crypto markets against potential rewards.