IREN Ltd. shares surged nearly 9% after The Information reported that the company had signed a multi-year AI cloud services agreement with Anthropic. [2, 4] The deal identifies Anthropic as the previously unnamed “leading frontier AI lab” that IREN referenced on its August 2026 earnings call. [5, 14] It marks a significant step in IREN’s transition from Bitcoin mining to providing integrated AI cloud services.

The partnership signals confidence in IREN’s ability to deliver high-performance computing infrastructure. It gives Anthropic access to large-scale GPU clusters, with more flexibility and cost-effectiveness than relying solely on hyperscale public clouds such as Amazon and Google. [2, 5] IREN shares also rose significantly in pre-market and overnight trading, outperforming sector peers. [2, 4]