Bitcoin Rallies Over $81,000 — And Brings BTC-Related Stocks With It

Bitcoin climbed above $81,000, and shares of companies with direct Bitcoin exposure—miners, exchanges/custodians and firms holding BTC on their balance sheets—also rallied. The move reinforces a strong short-term correlation between BTC prices and BTC-related equities, driven by renewed institutional flows and ETF-driven demand. The key implication is that equity channels are now amplifying Bitcoin price moves, increasing upside momentum but also raising the risk of cross-market contagion if sentiment reverses.