MARA Holdings Partners With Starwood to Transform Bitcoin Mining Sites Into AI Data Centers

MARA Holdings Strikes Major Partnership to Build AI Infrastructure

MARA Holdings, one of the largest publicly traded Bitcoin miners in the U.S., announced Thursday a joint venture with Starwood Capital Group to transform select cryptocurrency mining sites into infrastructure capable of supporting AI workloads and enterprise computing 1

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. The partnership with Starwood Digital Ventures marks a strategic pivot from Bitcoin mining as the company seeks to diversify beyond Bitcoin mining and establish itself as what CEO Fred Thiel calls an "energy-dominant digital infrastructure platform" 4

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Under the agreement, Starwood Digital Ventures will lead design, tenant sourcing, construction, and facility operations, while MARA Holdings contributes its existing sites with access to low-cost power and strong grid connectivity 2

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. The companies expect to deliver approximately 1 gigawatt of immediate computing capacity with a pathway to exceed 2.5 gigawatts over time 1

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. MARA will have the option to retain between 10% and 50% ownership in each project within the joint venture with Starwood, with both companies sharing development costs and profits 2

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Converting Bitcoin Mining Sites Into Hyperscale Data Centers

The partnership aims to convert Bitcoin mining sites into hyperscale data centers that can support AI workloads and high-performance computing operations. Barry Sternlicht, founder of Starwood Capital Group, emphasized the speed advantage this approach offers: "It's how fast we can get these projects up and running and where they are located," noting that the firm's reputation in debt and equity markets will help execute MARA's ambitions 1

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. Bitcoin miners have emerged as significant players among AI data center providers because they already possess cheap and readily available energy resources and sites that can be upgraded to higher-tier facilities, substantially reducing lead times compared to building from scratch 1

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Fred Thiel explained that the strategy transforms "power certainty into capacity certainty," allowing customers to run diverse workloads close to their data and users 5

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. The dual-purpose infrastructure will enable MARA to shift computing resources between Bitcoin mining and AI operations depending on pricing and demand conditions 2

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. This flexibility becomes particularly valuable as the company navigates cryptocurrency market volatility and seeks new revenue streams to leverage energy infrastructure more efficiently.

Financial Pressures Drive Industry-Wide Transformation

The announcement came alongside MARA's fourth-quarter 2025 earnings report, which revealed a net loss of $1.71 billion, or $4.52 per diluted share, compared to net income of $528.3 million in the same period a year earlier 3

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. The company's quarterly performance was hit by a $1.50 billion fair value markdown on its Bitcoin holdings as the cryptocurrency's price declined from around $114,300 on September 30 to roughly $88,800 on December 31 3

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. Revenue in Q4 fell 6% to $202.3 million from $214.4 million, as a lower average Bitcoin price outweighed the impact of higher hashrate 3

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Thiel acknowledged that recent Bitcoin volatility has affected the sector's sentiment and the company's trading performance, stating that MARA will adopt an opportunistic approach to leverage Bitcoin holdings for financial flexibility 4

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. Despite the quarterly losses, MARA shares surged approximately 15.5% in pre-market trading Friday following the Starwood announcement, after closing 1.4% lower at $8.45 during Thursday's regular session 4

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. The stock had reached as high as $9.90 in extended trading Thursday, up roughly 16% 2

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Competitive Landscape and Execution Challenges

While stock-market investors have rewarded Bitcoin miners that have wholeheartedly embraced the AI pivot—with companies like IREN Ltd., TeraWulf Inc., and Cipher Mining Inc. seeing surges in share prices—MARA has faced pressure to accelerate its transformation despite producing more computing power for Bitcoin mining than most U.S.-listed peers 1

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. Other large-scale miners including Riot Platforms, which operates one of the world's largest sites in Texas, are facing similar pressure from shareholders, with activist investor Starboard pushing for faster AI project development 1

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Analysts caution that execution remains critical for MARA's transformation. Ram Kumar, core contributor at OpenLedger, noted the move is "strategically meaningful" as it shifts MARA from "hashrate and Bitcoin price beta" toward "power-to-compute monetization," but emphasized that until signed hyperscale or enterprise leases with disclosed economics materialize, MARA will still trade primarily as a Bitcoin price proxy 2

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. Siwon Huh, researcher at Four Pillars, pointed out that unlike Core Scientific, which secured AI contracts last year, or TeraWulf with its long-term hosting deals, MARA remains at the partnership stage without confirmed AI tenants 2

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. Clear guidance on GPU procurement, power allocation ratios between Bitcoin mining and AI compute, and binding lease agreements with hyperscale-tier tenants will be essential catalysts for investors to accurately model demand across both segments 2

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. The company also highlighted its February acquisition of a 64% stake in Exaion to target sovereign-grade and enterprise AI deployments as part of its broader infrastructure strategy 3

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