MARA Holdings and CleanSpark Report Revenue Declines as Bitcoin Mining Profits Fall

MARA Holdings Q2 2026 revenue fell 27% to $174.9 million year-over-year, while CleanSpark revenue dropped 30.5% to $138 million in its third fiscal quarter. Both Bitcoin mining firms are expanding into AI and high-performance computing infrastructure. Investor enthusiasm for AI deal announcements has cooled, with average stock pops dropping from 24% to around 10%.