Bitcoin miner MARA Holdings reported a sharp jump in third-quarter profit even as its core mining business contracted, according to its quarterly filing. The company posted net income attributable to common stockholders of $634.4 million for Q3 2026, up from $123.1 million a year earlier, while total revenue fell 35% to $164.2 million. The results were accompanied by a major post-quarter Bitcoin sale aimed at paying down debt.

MARA Sells 13,597 BTC to Clear $750 Million in Loans

In a move disclosed after the quarter closed, MARA sold 13,597 BTC at a price of $81,039 per coin, generating proceeds of roughly $1.1 billion. The company directed $750 million of those proceeds toward repaying all of its Bitcoin-collateralized loans. Settling the facilities allowed MARA to recover the 17,477 BTC it had pledged as collateral.

The repayment lowers MARA's liabilities and eliminates the collateral requirements attached to the retired loans, though it also leaves the company with a smaller Bitcoin treasury than it would otherwise hold. With all of its Bitcoin-collateralized loans now retired, none of MARA's remaining debt is secured by pledged coins. According to the Form 10-Q filing, the transactions form part of the company's broader management of debt, liquidity and cryptocurrency holdings.

As of September 30, MARA held 34,012 BTC, a 36% decline year-over-year, and mined 2,247 BTC during the quarter, a 5% increase from the same period last year. The sale took place after that date, so the September 30 balance does not include the 13,597 BTC announced as sold later. Based on those disclosed figures, the sale leaves roughly 20,415 BTC in the treasury, before counting any coins mined since the quarter closed — a level that will become visible in the company's future balance-sheet disclosures.

Fair-Value Gains Offset Weaker Mining Revenue

The profit surge was driven primarily by noncash items. MARA recorded fair-value gains exceeding $885 million related to its digital assets and Bitcoin receivables — gains that do not represent cash flow generated by mining.

Operating results moved in the opposite direction. Mining revenue declined 34% to $159 million, and block reward income fell 37%, bringing total revenue to $164.2 million versus $252.6 million in the year-ago quarter. Increased Bitcoin production was not enough to offset the drop in revenue from the company's core mining activities.

The results underline why mining companies' reported earnings can diverge sharply from their operating performance: Bitcoin price movements can raise or reduce the reported value of holdings, while mining revenue depends on production, network conditions and coin prices. Investors therefore need to assess operating income and noncash valuation changes separately.

MARA Expands Into AI Infrastructure Beyond Bitcoin Mining

MARA is directing its energy assets and data centers toward artificial intelligence and high-performance computing workloads. The company is building AI infrastructure with its subsidiary Exaion and Starwood Digital Ventures while keeping Bitcoin mining as a key part of its business amid growing global demand.

"This is about much more than monetizing power capacity," chief executive Fred Thiel said in his quarterly letter to shareholders. "We will shift our focus to infrastructure and computing, and ultimately deliver an end-to-end cloud solution."

MARA said its next priorities are securing customer leases and generating free cash flow from its infrastructure platform, using its mining capabilities, energy resources and partnerships to generate better returns from its power assets. Progress on both fronts — signed leases and positive free cash flow — will be trackable in the company's quarterly reporting. The company has also cut total debt by 37% to $1.4 billion since the start of the year.

Rising Costs Pressure Bitcoin Miners

MARA's quarterly results reflect wider strain across the Bitcoin mining industry. HIVE Digital Technologies, for example, increased production even as revenue slipped alongside falling Bitcoin prices: HIVE produced 1,070 BTC, a 49% increase compared with the previous quarter, while mining revenue fell 7.4% to $76 million for the period.

Higher energy and equipment costs added pressure on both companies. MARA's purchased energy costs rose 12% to $48.1 million, and it incurred a $12 million impairment expense related to mining equipment. HIVE Digital saw electricity costs climb 20% to $45.6 million, alongside a $31.2 million mining equipment impairment. Unlike electricity bills, impairments are noncash accounting charges that write down the book value of mining equipment rather than represent current-period spending.

These economics help explain why miners are pursuing income from data centers and computing services. Core Scientific plans to exit Bitcoin mining before year-end and focus on AI infrastructure, while HIVE Digital Technologies and MARA continue mining as they grow their computing capacities. Core Scientific's planned exit before year-end will provide a near-term marker for how quickly that transition proceeds.

Primary Sources and References

• MARA Holdings Form 10-Q, SEC EDGAR
• MARA Holdings Q3 2026 filing via Investor Relations
• MARA Q3 2026 Shareholder Letter (PDF)
• MARA Q3 2026 Earnings Presentation (PDF)
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• Source: Tron Weekly