JPMorgan has reported that the total market capitalization of 14 publicly listed U.S. bitcoin mining companies fell by 22% in February, equating to a loss of $6 billion. This decline was attributed to a drop in Bitcoin prices and deteriorating mining economics. Specifically, Core Scientific (ticker: $CORZ) experienced a 22% drop in its stock price following its February production results, which showed a decrease of 41 BTC mined compared to the previous quarter, totaling 256 BTC for the month. Meanwhile, Marathon Digital Holdings ($MARA) reported a reduction in block wins and Bitcoin production, with a month-to-month decline of 6% in February. The mining sector continues to face challenges due to increased difficulty and the declining price of Bitcoin, impacting overall production and profitability.