Bitcoin mining companies IREN and CleanSpark have reported disappointing financial results for Q1 2025, leading to significant declines in their stock prices. IREN's revenue for the quarter ending December 31, 2025, was $184.7 million, a decrease from $240.3 million in the previous quarter, with a net loss of $155.4 million compared to a net profit of $384.6 million previously. CleanSpark also reported underwhelming results, with Q1 revenue of $181.2 million, which was higher than the same period last year but resulted in a net loss of $378.7 million, contrasting with a net profit in the same period last year. CleanSpark's stock dropped by 19%, closing at $7.55, while IREN's stock fell by 11%, closing at $32.42 in after-hours trading.