Marathon Digital Holdings (Nasdaq: MARA) is the largest publicly traded Bitcoin mining company by market capitalization. Headquartered in Fort Lauderdale, Florida, Marathon operates a massive fleet of Bitcoin mining hardware across multiple facilities in the United States and internationally, with a focus on scale, efficiency, and sustainable energy sourcing.
Originally incorporated as Marathon Patent Group, the company pivoted to Bitcoin mining in 2017 under the leadership of CEO Fred Thiel, who joined in 2021. Marathon has aggressively expanded its hash rate through both hardware purchases and strategic acquisitions. As of early 2026, the company operates one of the largest mining operations in the world, measured by deployed hash rate.
Marathon has adopted a strategy of holding a significant portion of the Bitcoin it mines on its balance sheet rather than selling immediately. This "HODL" approach has made Marathon one of the largest corporate holders of Bitcoin. The company also holds Bitcoin purchased on the open market, further increasing its treasury reserves.
Following Bitcoin's April 2024 halving event, which cut block rewards from 6.25 BTC to 3.125 BTC, Marathon has focused on reducing its cost per Bitcoin mined through operational efficiency improvements, favorable energy contracts, and immersion cooling technology. The company has also diversified into providing compute services and supporting other blockchain networks.
Key Facts
- Ticker: Nasdaq: MARA
- Headquarters: Fort Lauderdale, Florida
- CEO: Fred Thiel
- Business: Bitcoin mining, digital asset holding, compute services
- Energy focus: Expanding use of renewable and stranded energy sources