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IREN Limited, a former bitcoin‑mining company, announced on Thursday that it has closed a $3 billion convertible senior notes offering. The capital raise will fund the firm’s transition from cryptocurrency mining to AI infrastructure services, following recent multi‑billion dollar deals with Microsoft and Nvidia.

Background

IREN, listed on the Australian Securities Exchange, has historically generated revenue through large‑scale Bitcoin mining operations. In recent years, the company has begun to pivot toward high‑performance computing (HPC) and artificial‑intelligence (AI) workloads, a trend echoed by other miners such as Keel Infrastructure. Analysts at Bernstein predict IREN will exit Bitcoin mining entirely by 2030, reallocating its hardware for AI and HPC purposes. The firm’s stock has fallen over 8% on Friday, reflecting a broader downturn in crypto‑related equities, but has risen 9% over the past month and 15% in the last six months.

What Happened

IREN’s convertible senior notes carry a 1% annual coupon and mature in 2033. They were sold privately to qualified institutional buyers under Rule 144A, generating net proceeds of $2.96 billion after fees and expenses. The notes include a conversion premium of 32.5% above IREN’s share price, and a capped call structure that limits dilution while allowing upside participation for existing shareholders. IREN allocated $201.3 million of the proceeds to fund capped call transactions with a cap price of $110.30 per share, representing a 100% premium over the $55.15 share price recorded on May 11.

Earlier this year, IREN signed a $9.7 billion AI cloud hosting agreement with Microsoft, followed by a deal with Nvidia in early May to deploy up to 5 GW of AI data‑center capacity worldwide. The Nvidia partnership includes a $3.4 billion five‑year AI cloud contract for air‑cooled Blackwell GPUs and a five‑year warrant for up to 30 million IREN shares at $70 each. Days after announcing the Nvidia partnership, IREN completed a $625 million all‑stock acquisition of software services provider Mirantis.

Market & Industry Implications

IREN’s capital raise and strategic agreements illustrate a broader shift in the cryptocurrency mining sector toward AI compute. Major Bitcoin‑mining firms are increasingly signing multi‑billion dollar deals to provide AI and HPC services, while some, like Keel Infrastructure, have fully shuttered their mining operations in favor of AI and HPC. The convertible notes structure, with a capped call and conversion premium, reflects a balance between raising capital and protecting existing shareholders from dilution. The $3 billion raise positions IREN to scale its AI infrastructure rapidly, potentially accelerating the transition of mining hardware to high‑performance AI workloads.

What to Watch

  • IREN’s next quarterly earnings report, which will detail the utilization of the $3 billion capital raise and progress on AI infrastructure projects.
  • Performance of the newly signed Microsoft and Nvidia AI contracts, including any milestone achievements or revenue recognition dates.
  • Potential exercise of the five‑year warrant for up to 30 million IREN shares at $70 each, which could impact share dilution and valuation.