Bitcoin mining companies have experienced a notable stock surge since September 2025, outpacing Bitcoin's own performance. This growth is driven by their strategic shift into AI-related computational services, which provide more stable revenue streams and reduce exposure to mining volatility. According to Ecoinometrics, while Bitcoin's annual returns ranged from 25% to 40%, mining stocks have soared over 150% by late October 2025. The move into AI allows miners to utilize excess capacity and explore new funding avenues, though the competitive AI market suggests a gradual transition balancing mining and AI services.