Marathon Digital Holdings just completed one of the largest Bitcoin-backed loans ever signed by a publicly traded miner, pledging $1.2 billion worth of Bitcoin to raise $750 million in fresh capital. The deal, split between Coinbase Credit and Two Prime Lending, marks a watershed moment for institutional crypto lending: major financial institutions are now treating Bitcoin holdings on a corporate balance sheet as bankable collateral, not speculative curiosities.

How Did Marathon Structure This Massive Crypto-Collateralized Loan?

The $750 million facility breaks down into two separate term loans with different terms and interest structures. Coinbase Credit provided $450 million, which itself consisted of $300 million in new funding plus a refinancing of a previous $150 million credit line Marathon already held. Two Prime Lending contributed the remaining $300 million. Both loans mature in August 2028, though the Coinbase portion includes an automatic one-year extension option unless either party cancels it.

To secure the borrowing, Marathon pledged 18,750 Bitcoin as collateral, valued at approximately $1.2 billion at the time the deal closed. The loan-to-value ratio sits at roughly 50%, meaning Marathon borrowed $600 million against $1.2 billion worth of pledged Bitcoin. That cushion is designed to absorb price swings without triggering immediate collateral calls, though both agreements include margin coverage requirements that obligate Marathon to post additional collateral if the pledged Bitcoin's value falls below contractual thresholds.

• Coinbase Facility: $450 million with a floating interest rate tied to the federal funds target range plus 3.875%, removing rate certainty but allowing flexibility as monetary policy shifts.
• Two Prime Facility: $300 million with a fixed 7.65% interest rate, locking in borrowing costs for the life of the loan and eliminating rate volatility risk.
• Collateral Cushion: The 50% loan-to-value ratio provides a buffer against Bitcoin price declines, but Marathon must monitor margin requirements to avoid forced collateral posting.

What Is Marathon Planning to Do With the Capital?

Marathon has earmarked the proceeds for general corporate purposes, but the headline use is funding its planned acquisition of Long Ridge Energy and Power, a deal carrying an enterprise value of roughly $1.5 billion, including up to about $900 million in assumed debt. Long Ridge operates a gas-fired power plant in Hannibal, Ohio, currently rated at 485 megawatts and expected to expand to 505 megawatts by the first quarter of 2027. The site includes more than 1,600 contiguous acres with water, fiber and rail access, sitting next to Marathon's existing Hannibal data center operations.

That combination of power capacity and land gives Marathon optionality to run Bitcoin mining alongside high-performance computing workloads at a time when artificial intelligence data center demand is competing directly with crypto miners for electricity. To help finance the acquisition, Marathon has also secured a commitment from Barclays for a 364-day senior secured bridge facility of up to $785 million, which can act as backstop financing for part of the Long Ridge debt. The company is pursuing a parallel infrastructure push in Texas, where it is acquiring more than 1,200 acres in Matagorda County with Starwood Digital Ventures, targeting an initial 1 gigawatt of grid capacity by October 2027 and up to 2 gigawatts by April 2028 for flexible compute and mining operations.

Why Does This Loan Matter Beyond Marathon?

Deals of this scale test whether Bitcoin-backed credit can function like conventional corporate lending, with fixed and floating rate tranches, multi-year maturities, extension options and standardized margin mechanics, rather than as a niche, high-interest product reserved for distressed borrowers. Coinbase stepping in as a lender of this size, alongside Two Prime's willingness to fix a rate on $300 million of Bitcoin-backed debt, signals that professional credit markets have grown far more comfortable pricing Bitcoin as loan collateral than they were just a few years ago.

That is a meaningful marker for institutional crypto lending broadly. It suggests lenders now view large, well-documented Bitcoin holdings on a public company's balance sheet as a bankable asset rather than a speculative curiosity. If Marathon services this debt smoothly through 2028, it becomes a reference point for other miners and crypto-treasury companies looking to raise capital without dumping their coins on the open market.

What Is the Trade-Off for Marathon?

The flip side is concentration risk. With 18,750 Bitcoin pledged out of a 35,577 Bitcoin treasury, more than half of Marathon's total holdings are now tied up as collateral. The roughly 50% loan-to-value ratio provides a buffer, but a prolonged downturn could force Marathon to post additional collateral or, in a worst-case scenario, see lenders move to liquidate part of its pledged Bitcoin. Marathon has also loaned out 4,742 Bitcoin to third parties and pledged another 4,528 Bitcoin as collateral outside this deal, leaving roughly 26,307 Bitcoin unrestricted, worth about $1.5 billion. That detail shows just how much of the company's crypto stack is now tied up in financing activity rather than sitting untouched in cold storage.

This loan lands against the backdrop of a much bigger shift in how Marathon manages its balance sheet. According to the company's August 6 Form 10-Q filing with the Securities and Exchange Commission (SEC), Marathon sold about 23,093 Bitcoin for roughly $1.63 billion during the first half of 2026, at an average price of $70,631, to fund operations, growth investments and liquidity needs. That selling pared the company's Bitcoin treasury down to 35,577 Bitcoin by June 30, worth about $2.1 billion at a quarter-end price near $58,524, down from 53,822 Bitcoin at the end of 2025.

That context helps explain why Marathon is leaning on a crypto-collateralized loan rather than simply liquidating more Bitcoin: pledging coins as collateral lets the company raise cash while still keeping upside exposure to any future price recovery. The proceeds from Bitcoin sales already helped Marathon cut total debt from $3.6 billion at the end of 2025 to about $2.4 billion by June 30, including roughly $1 billion in privately negotiated repurchases of its 0% convertible senior notes.

The first half was not kind to Marathon's reported earnings. The company posted $349.5 million in revenue, down from $452.4 million a year earlier, and swung to a net loss of $1.87 billion, in contrast with the prior period's net income of $274.8 million in the same period of 2025. That swing was driven largely by a roughly $1.4 billion decline in the fair value of its Bitcoin holdings as the market price fell. Even so, Marathon kept expanding its mining footprint, with energized hashrate climbing to 70.3 exahashes per second from 57.4 exahashes per second a year earlier.

For the broader crypto mining industry, this deal signals that the era of Bitcoin-backed corporate lending as a niche product is ending. As more institutional lenders gain comfort with Bitcoin collateral and standardized credit terms, miners and other crypto-treasury companies will have more options to fund growth without forced asset sales. That flexibility could reshape how the industry finances expansion in the years ahead.