The companies saw profits and Bitcoin reserves rise in the third quarter of 2025 as they moved further into high-performance computing and energy development. Bitcoin miners MARA Holdings and Hut 8 posted strong third-quarter results on Tuesday, with both reporting sharply higher profits and expanding Bitcoin reserves. MARA’s revenue climbed 92% year-over-year to $252 million in the third quarter of 2025, swinging from a $125 million loss to $123 million in net income over the period, while Hut 8’s revenue nearly doubled to $83.5 million with profits of $50.6 million. Both miners also strengthened their balance sheets. MARA Holdings ended the quarter with 52,850 Bitcoin (BTC), nearly doubling its reserves from 26,747 BTC a year earlier. Hut 8 reported 13,696 BTC in its strategic reserve, up from 9,106 BTC in the same period last year. Read more
MARA Holding’s expansion into AI and high-performance computing is expected to close in Q4, and comes amid a steep rise in Bitcoin mining difficulty. Bitcoin miner MARA Holdings is making its biggest AI play to date, signing a $168 million deal to buy a 64% stake in Exaion, a subsidiary of French state-owned Électricité de France, one of the world’s largest low-carbon energy producers. The agreement, announced on Tuesday, includes an option for MARA to raise its stake to 75% by 2027 with an additional $127 million investment, contingent on performance milestones. Exaion develops high-performance computing (HPC) data centers and provides AI and cloud infrastructure in partnership with the likes of AI heavyweight Nvidia and Big Four accounting firm Deloitte. Read more
Shares in IREN Ltd closed trading on Wednesday up 11.4% after it reported mining more Bitcoin than MARA Holdings in July. Shares in IREN Ltd popped 11.4% after the Bitcoin miner posted $86 million in revenue for July, outperforming industry heavyweight MARA Holdings in Bitcoin production. On Wednesday, IREN reported mining 728 Bitcoin (BTC) in July, beating MARA’s 703 BTC mined over the same period despite having a smaller deployed hashrate — 50 exahashes per second (EH/s) compared to MARA’s 58.9 EH/s. IREN reported an average hashrate over July of 45.4 EH/s, signalling that a majority of its machines stayed online and productive throughout the month. Read more