The Block reports that Bitcoin miners Marathon Digital Holdings (MARA) and CleanSpark posted double-digit revenue drops as they pivot toward AI infrastructure. MARA's net loss widened to $611.3 million, or $1.60 per diluted share, while CleanSpark's net loss reached $239.8 million, or $0.89 per basic share.
The headline signal here is that pure-play Bitcoin mining economics keep tightening enough that even the large operators are repositioning toward AI/HPC hosting, which changes the competitive landscape for anyone relying on cheap compute or expecting mining-driven hashrate patterns to stay stable. If this pivot broadens, watch whether energy and datacenter capacity gets bid away from crypto workloads toward AI, which could pressure mining margins further. For builders on Avalanche or Base this is mostly indirect, but it's worth tracking as a read on where Bitcoin network security spending may drift.
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