Analysts at JP Morgan wrote in their latest cryptocurrency report that the combined market capitalization of 14 of the top publicly traded U.S. miners fell by 22 percent -- $6 billion -- in February alone. Companies tracked by the top investment bank include Core Scientific, Greenidge, and MARA Holdings, among others. The JPMorgan report also pointed to a decline in revenue for these companies, with analysts at the bank predicting that bitcoin miners earned an average of $54,300 per EH/s in daily block rewards in February, down 5% from the previous month.