Bitcoin miners MARA and CleanSpark post double-digital revenue drops as AI infrastructure pivot continues

MARA and CleanSpark post combined $851 million quarterly losses

Bitcoin miners MARA Holdings and CleanSpark reported heavy Q2 losses totaling $851 million, with MARA's net loss at $611.3 million and CleanSpark's at $239.8 million, driven by falling Bitcoin prices and non-cash valuation losses.