High-performance computing and bitcoin miner IREN (IREN) saw its shares fall 6% in after-hours trading on Tuesday after revealing plans for an $875 million convertible debt offering.
The offering could rise to $1 billion if initial buyers exercise an option to purchase an additional $125 million, the company said. The unsecured notes will allow holders to convert into IREN shares or cash under certain conditions, with maturity set for July 2031.
IREN indicated that proceeds would support general operations and capped call transactions, designed to minimize potential dilution if the notes convert into equity. The capped calls also offset potential cash payments if IREN’s stock price rises sharply. The company added that it may seek shareholder approval to repurchase shares to settle these instruments in the future.
The announcement erased most of the stock’s earlier gains following news of new multi-year AI cloud contracts leveraging Nvidia Blackwell GPU deployments. Despite the pullback, IREN shares remain up roughly 1,000% since April, reflecting intense investor enthusiasm for AI infrastructure and high-performance computing plays.

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