NVIDIA and IREN announce partnership to deploy up to 5 gigawatts of AI infrastructure, with IREN entering purchase agreements for more than 50,000 NVIDIA B300 GPUs.

IREN said on March 4, 2026, that it entered purchase agreements for more than 50,000 NVIDIA B300 GPUs and expects to expand its total fleet to 150,000 GPUs by the end of 2026, with deployment in phases through the second half of the year at air-cooled data centers in Mackenzie, British Columbia, and Childress, Texas.

IREN said the expanded GPU fleet is expected to support AI Cloud annualized run-rate revenue of more than $3.7 billion by the end of 2026. The company has secured $9.3 billion in funding over the past eight months through customer prepayments, convertible notes, GPU leasing and GPU financing.

Shares of IREN jumped in after-market hours, up 22% to $69.58 as of publishing time.