IREN Surpasses Riot in AI Growth Potential

Two companies, IREN Limited and Riot Platforms, have built large Bitcoin mining operations and are now transitioning to AI computing demand. Both companies have a common asset base that allows them to move into AI without starting from scratch.

IREN is rapidly becoming an AI cloud operator, combining data centers, GPUs, and software while planning to wind down its Bitcoin mining business by the end of 2026. In contrast, Riot is taking a more gradual route, keeping a significant mining business while developing and leasing powered data center capacity to customers like AMD.

IREN's growth case relies on how quickly its AI business moves from promise to contracted demand. The company has already sold out most of its 2026 capacity, with over $4 billion in contracted annualized run-rate revenues, and is targeting roughly 0.3 GW of IT load in 2027.

Riot's AI strategy, on the other hand, focuses on long-duration data center leases rather than a full-stack cloud offering. The company has contracted 241 MW of critical IT capacity across AMD and a leading frontier AI lab, representing around $9.8 billion in contracted data center revenues.