Bitcoin miner IREN still gets 82% of revenue from BTC after clearing room for Microsoft AI cloud

IREN is still mostly a Bitcoin miner by revenue, even as it retires mining hardware to make room for AI infrastructure and grow IREN's AI cloud revenue.

The company’s fiscal 2026 results, filed Aug. 27, show Bitcoin mining generated $578.2 million of IREN’s $707 million in annual revenue, or about 81.8%. AI Cloud Services contributed $128.8 million.

That ongoing transition produced a $638.8 million non-cash impairment, primarily tied to decommissioning miners as data center sites were converted for AI workloads. IREN also reported a $702.6 million net loss, which was affected by the impairment and other items. The charge was not a $638.8 million cash outflow, but it put an accounting value on assets retired before the replacement business had fully entered service.

IREN AI cloud revenue faces a $3 billion operating gap

As of Aug. 26, IREN had $1 billion of operating annualized run-rate revenue, or ARR, against $4 billion of contracted ARR for its 2026 capacity. IREN targets the larger run rate to be operational by Dec. 31.

The company calculates ARR from contracted GPU pricing multiplied by a full year of hours, including storage and related services. It is an operating measure, not GAAP revenue, and IREN warns that recognized revenue may be materially lower. Closing the gap depends on physical infrastructure being delivered and accepted, as well as the company’s utilization and pricing assumptions.