Iren Surges 20% on $2.8B in New Contracts; AI Cloud Revenue Outlook Raised

Iren announced $2.8 billion（約4500億円） in new contracts on July 20, causing its stock to surge 20% that day. The contracts average four years in length and span hyperscalers, frontier labs, AI developers, and enterprises. A key structural feature is that prepayments cover approximately 45% of the cost of the graphics processing units (GPUs) to be deployed, reducing Iren's upfront capital burden. In tandem with the contract announcement, the company raised its year-end AI cloud computing annual revenue run rate outlook to more than $4 billion（約6400億円）, up from a prior target of $3.7 billion（約5900億円）.

Iren's expansion trajectory is aggressive. The company currently operates 3 megawatts of capacity and is expected to grow that to 480 megawatts in 2026 and 1.2 gigawatts in 2027. Notably, the company stated that demand continues to exceed its planned capacity additions, suggesting market traction and limited supply constraints from competition. The company has secured permitted sites and power in Texas and Australia to support this expansion.

Iren's evolution from Bitcoin mining reflects a pragmatic redeployment of its core infrastructure. Cryptocurrency miners had built their business around securing large campus land and negotiating favorable power contracts with utilities. After the AI boom, both assets became strategically valuable—access to cheap energy became a critical bottleneck for AI data center operators. By shifting focus, Iren moved from a business model pegged to volatile Bitcoin prices to more predictable and profitable AI infrastructure contracts.

To strengthen its competitive position, Iren has acquired software and infrastructure companies, including Mirantis, to create an integrated software layer and offer a full end-to-end cloud platform. It has also forged partnerships with major technology players: a five-year, $3.4 billion（約5400億円） cloud services contract with Nvidia to host its internal AI and research workloads, and a $9.7 billion（約1.6兆円）, five-year deal with Microsoft dedicating 200 megawatts of power. These contracts demonstrate confidence from industry leaders and secure long-term anchor customers. Though data center expansion is capital-intensive, Iren's ability to secure upfront prepayments on GPU costs helps de-risk the business model. The stock has more than doubled over the past year but has also declined nearly in half from its highs, reflecting the volatility typical of growth-stage infrastructure companies.

Iren's transition from Bitcoin mining to AI data center operations represents a strategic pivot grounded in real infrastructure advantages. The company built its original business by securing long-term land leases and negotiating favorable power contracts with utilities—assets that were highly specific to mining but have become critical bottlenecks in AI infrastructure. The shift sidesteps the volatility of cryptocurrency prices while tapping into structurally strong demand for compute capacity.

The $2.8 billion（約4500億円） contract announcement reflects the scale of this opportunity. By structuring deals to include upfront prepayments covering approximately 45% of GPU costs, Iren has reduced its capital risk while securing multi-year revenue streams. The average four-year contract length provides predictability, a stark contrast to the commodity-like dynamics of mining. Recent acquisitions such as Mirantis add software capabilities, allowing Iren to offer a full end-to-end cloud platform rather than just raw compute. The partnerships with Nvidia and Microsoft—totaling $13.1 billion（約2.1兆円） across both contracts—validate this approach and lock in high-margin, stable revenue.