IREN’s High-Stakes AI Pivot: A $3.65 Billion Credit Line and a $9.7 Billion Microsoft Contract Meet a Reality Check

IREN’s transformation from Bitcoin miner to AI infrastructure player brings a $9.7B Microsoft contract and Nvidia partnership, but a 34% revenue miss and rising short interest fuel skepticism.

IREN, the former Bitcoin miner now morphing into a pure-play AI infrastructure provider, is simultaneously riding a wave of institutional confidence and battling a wall of skepticism. The stock has soared roughly 409% over the past twelve months, yet it sits about 32% below its 52-week high at around €46.60. In the last seven trading sessions alone, shares have dropped 17.5%. The contradiction is baked into the company’s story: a monumental business transformation backed by billions in blue-chip contracts, but execution risks that have already produced a sharp earnings miss.

The doubters are increasingly vocal. Short interest has climbed above 16% of the floating stock, reflecting bets that IREN will stumble on delivery. That skepticism found ammunition in the company’s fiscal third?quarter results for 2026. IREN reported a loss per share of $0.30 — 39% worse than analysts had forecast — and revenue of just $144.8 million, a full 34% below the $219.9 million consensus. Those are not trivial deviations, and they underscore the gap between ambitious growth plans and operational reality.

Yet the pure scale of IREN’s pivot is difficult to dismiss. The company has locked in a five?year cloud contract with Microsoft that could generate as much as $9.7 billion in revenue. To deliver the required computing horsepower, IREN is spending roughly $1.6 billion on Nvidia’s latest Blackwell systems, with Dell providing the server infrastructure. The first phase of the dedicated 200?megawatt data center, codenamed “Horizon,” is expected to go live in the third quarter of fiscal 2026. Management projects that its annualized run?rate revenue could eventually hit $4.4 billion.

The financing behind this build?out is remarkably cheap. IREN has secured a $3.65 billion debt package with an investment?grade rating and an average interest cost of just 3.31%. That covers about 96% of a $5.81 billion GPU investment program. With such low?cost leverage, the company is effectively minimizing equity dilution — but it also leaves no room for delays, because every month of idle hardware carries a fixed finance charge.

Beyond the Microsoft deal, IREN has cemented its relationship with Nvidia through a separate $5.5 billion partnership. The arrangement includes a $3.4 billion cloud contract for Nvidia’s internal workloads and a $2.1 billion option for Nvidia to take an equity stake. Bernstein analyst Gautam Chhugani, who last week set a Street?high price target of $100, called the Nvidia deal a “seal of approval” that greatly bolsters the credibility of IREN’s flagship 2?gigawatt Sweetwater project in Texas. Sweetwater still lacks anchor tenants, but Nvidia’s involvement gives the development far more heft in early negotiations.

Wall Street remains split on the stock. Bernstein’s $100 target is the most bullish, closely followed by Cantor Fitzgerald’s upgraded target of $99 (from $77) and a maintained “Overweight” rating. Cantor’s Brett Knoblauch notes that IREN aims to bring 670 megawatts of gross capacity online by 2027 — capacity he believes the market is not yet pricing in. On the other end, JPMorgan warns that risks are elevated and values the stock at just $46. The consensus among 10 analysts sees six buys, three holds, and one sell, with an average price target of $74.56 — implying roughly 24% upside but far short of Bernstein’s aggressive call.

Institutional buyers are stepping in. Capital Research Global Investors recently purchased more than one million shares. But the company’s own acquisition of Mirantis for $625 million, funded entirely in stock, ties the deal’s value directly to IREN’s share price — a risky proposition given the stock’s annualized volatility of 114%.

The immediate test for IREN comes from construction milestones. The Horizon data center must meet its timeline to keep the Microsoft contract on track. Meanwhile, a separate campus in South Australia is slated to begin operations in 2028. With no major near?term catalysts before June 10, the next proof points will have to emerge from the data center floors themselves. The company has the capital, the partners, and the contracts. Now it needs flawless execution — and the earnings miss suggests that is far from guaranteed.