IREN Drops 6% as Alphabet’s AI Cash Burn Rattles Data Center Stocks; Cipher Digital Falls 5% Ahead of Earnings

Worries over how the biggest cloud spenders will pay for artificial intelligence (AI) are hitting the companies that build and rent them data center capacity. IREN Limited (NASDAQ:IREN) stock is at $27.04, down 6% by midday. Cipher Digital (NASDAQ:CIFR) stock is at $8.41, down 5%, as caution builds ahead of the company’s upcoming quarterly report.

Losses across IREN’s corner of AI infrastructure are running well ahead of large-cap technology. Invesco QQQ Trust (NASDAQ:QQQ) shares currently sit at $715.17, down 1%. Broad-market losses are smaller still, with the SPDR S&P 500 ETF Trust (NYSEARCA:SPY) at $769.06, down 0.4%.

Alphabet’s Cash Burn Puts Hyperscaler Spending Under the Microscope

Alphabet posted a Q3 2026 report showing capital spending of $51.3 billion. That outlay left Alphabet’s free cash flow at negative $9.1 billion, the second straight negative quarter for the company. To fund its AI expansion, Alphabet is leaning on debt issuance and at-the-market stock sales.

Microsoft is spending more as well, with its quarterly report showing capital expenditures of $45.2 billion in Q1 FY2027. Guidance from Microsoft calls for more than $50 billion next quarter, though the company kept its free cash flow positive. Shares of Microsoft have given up their gains and turned lower.

Spending at both hyperscalers is still climbing. What’s weighing on IREN and Cipher Digital is a bigger question: whether those customers can keep funding the expansion and earn a return on it, since that expansion drives demand for the capacity both companies are racing to deliver. IREN is sliding alongside other AI cloud and data center operators as that debate spreads across the group.

All of that hyperscaler spending has to be built, powered, and cooled by somebody, which is why the suppliers behind the data centers keep showing up in our free report on seven AI infrastructure stocks that aren’t chipmakers.

What Cipher Digital and MARA Reveal About IREN’s Slide

Over the past month, Cipher Digital stock is down 50%. IREN stock is down 35% over the same stretch. Part of Cipher Digital’s selling looks like caution ahead of its next report, since its Q2 2026 results on August 4 showed revenue of $24.84 million, missing expectations. Cipher Digital’s generally accepted accounting principles (GAAP) net loss of $267.5 million included a $150.5 million non-cash warrant charge.

MARA Holdings (NASDAQ:MARA | MARA Price Prediction) stock is at $7.28, down 0.9%. That small dip cuts against a clean sector-wide story, since MARA is also moving toward AI infrastructure. Bitcoin (CRYPTO:BTC) mining remains MARA’s core business, and as of its Q2 2026 update, the company was still working to sign its first AI data center lease, which may leave it less directly tied to hyperscaler budgets.

How IREN’s Business Model Differs From Cipher Digital and MARA

IREN operates its own AI cloud, buying graphics processing units (GPUs) and renting computing power to customers including Microsoft and leading AI labs, and owning the hardware gives IREN direct exposure to computing prices, along with heavy reliance on a small group of buyers.

Cipher Digital takes a landlord approach, developing powered data center campuses and leasing them to hyperscale tenants under long-term contracts, trading upside on computing prices for steadier rent, though it relies on substantial debt to fund several projects at once. MARA sits further back in the transition, with most of its operations still tied to mining.

IREN and Cipher Digital Head Into Earnings Under Pressure

IREN’s upcoming report needs to show AI cloud growth on pace for its $4 billion signed annualized recurring revenue (ARR) target by December 31. IREN’s Q4 FY2026 results on August 27 showed revenue of $137.2 million and a GAAP net loss of $684 million, which included a $450.4 million non-cash impairment on retired mining hardware.

For Cipher Digital, investors need to see if rental payments at Barber Lake began in October as expected. The bulls can point to long-term hyperscale contracts and IREN’s own claim that “Our 2026 capacity is largely sold out.” Skeptics see risk in Alphabet’s negative free cash flow, heavy borrowing across the group and the chance that hyperscalers slow their pace if returns lag.

Both companies’ upcoming reports could sharpen that debate in either direction, for IREN and Cipher Digital alike. Investors may want to wait while the AI spending debate plays out.

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