CleanSpark jumps 10.67% on $6.6B AI data center lease deal

CleanSpark Inc. announced a strategic 20-year infrastructure leasing deal with an unnamed high-investment-grade tenant, marking a major milestone in the company's expansion into the AI data center market. The agreement provides initial contract revenue of $6.6 billion（約1.1兆円）, with the added possibility of two five-year extension periods that could bring total revenues to $11.6 billion（約1.9兆円）. Under the terms, the tenant will deploy production-grade infrastructure at CleanSpark's Sandersville campus in Georgia to support various computing workloads. The news sent the stock up 10.67 percent to close at $14.42 on Monday, driven by broader investor enthusiasm for AI infrastructure plays.

The timing of CleanSpark's announcement coincided with major deals from competitors. Hut 8 Corp. secured a $9.8 billion（約1.6兆円） leasing deal with an existing high-investment-grade company for 15 years, expanding its total lease to 704 MW through capacity from the second phase of its Beacon Point data center in Nueces County, Texas. The same day, IREN Ltd. signed $2.8 billion（約4500億円） in new AI cloud deals with leading developers including Microsoft, NVIDIA, Perplexity, Figure AI, Together AI, Fluidstack, Fireworks AI, Fal AI, and Hume AI across bare metal and managed cloud services. IREN's annualized run-rate revenue climbed to $4 billion（約6400億円） as a result.

These announcements underscore that hyperscalers and AI developers continue to deploy billions into long-term computing capacity commitments despite broader scrutiny of whether aggressive AI spending can be sustained. For CleanSpark, the deal signals a strategic reorientation beyond its core Bitcoin mining operations toward the rapidly expanding AI data center segment, where power and computing supply constraints remain acute. Institutional backing has strengthened in parallel: data showed 37 hedge funds held positions in CleanSpark as of Q1, up from 32 in the prior quarter, reflecting growing confidence in the company's growth trajectory.

CleanSpark's 20-year lease represents a broader pattern of commitment from AI developers and hyperscalers to long-term infrastructure investment despite concerns about the sustainability of aggressive AI spending. The company's shift from Bitcoin mining toward AI data centers reflects the market reality that demand for power and computing capacity continues to outpace supply in the AI sector. On the same Monday, competitor deals by Hut 8 ($9.8 billion（約1.6兆円）) and IREN ($2.8 billion（約4500億円）) reinforce that this is not an isolated transaction but part of a sustained wave of multi-billion-dollar infrastructure leasing across the sector. The influx of hedge fund capital—37 funds now holding CleanSpark positions versus 32 in the previous quarter—suggests institutional conviction in the company's growth prospects, driven by visibility into these long-term revenue commitments from marquee AI developers.

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