Data centre and Bitcoin mining company Iren Limited [NASDAQ: IREN] closed Monday’s session as the day’s most prominent loser, falling 9.89% to $55.15 after the company announced plans to raise $2 billion through a convertible senior notes offering due 2033, spooking investors already sensitive to dilution risk following a more than 50% rally in the stock over just the prior month.

Trading volume in IREN reached 108.4 million shares, approximately 187% above its three-month daily average of 37.8 million shares, reflecting the scale of the market reaction to the capital raise announcement.

The notes offering arrived one week after Iren reported a fiscal third-quarter earnings miss, during which the company also disclosed an AI infrastructure cloud services contract with Nvidia [NASDAQ: NVDA], a development that had briefly bolstered sentiment around the stock’s transition story.

Iren is in the process of pivoting from its original Bitcoin mining operations toward a higher-margin AI cloud services business, and investors are closely watching whether its Nvidia-backed data centre buildout can justify the rapidly expanding debt load the company is taking on to fund that transition.

The interest rate, initial conversion rate, and final pricing terms of the 2033 notes were not disclosed in Monday’s announcement, leaving investors with limited ability to assess the dilution impact, a vacuum that equity markets filled by selling first and asking questions later.

The broader market closed modestly higher on the same day, with the S&P 500 gaining 0.19% to close at 7,413, while the Nasdaq Composite added 0.10% to finish at 26,274, as markets weighed the competing forces of higher oil prices and resilient AI sector momentum.

Among data centre and cloud computing peers, CoreWeave [NASDAQ: CRWV] closed at $114.70, up 0.48%, while Riot Platforms [NASDAQ: RIOT] gained 5.23% to $25.34 as crypto-exposed investors responded positively to Bitcoin’s price movements during the session.

Iren has grown 126% since its 2021 IPO, and the company’s long-term narrative around AI infrastructure remains intact, but the combination of a recent earnings miss and a large and potentially dilutive capital raise landed on a stock that had already priced in a great deal of optimism.