Cipher Digital Falls 5% as $850M Zero-Coupon Note Pricing Extends Slide; Applied Digital Declines 6%, IREN Drops 4%

Cipher Digital (NASDAQ:CIFR) shares are trading at $10.72, down 5%, after the artificial intelligence (AI) data center developer priced a large zero-interest convertible note sale. This decline extends a steep slide after Cipher Digital stock fell 13% in the prior session, measured close to close.

Meanwhile, IREN Limited (NASDAQ:IREN) stock is at $33.37, down 4% as AI data center peers slip alongside Cipher Digital. Across the sector, the Global X Data Center & Digital Infrastructure ETF (NASDAQ:DTCR) is down 1%, a far softer move for the broader data center group.

The SPDR S&P 500 ETF Trust (NYSEARCA:SPY) is down 0.4%, with the broad market lower after an inflation reading above expectations. Applied Digital (NASDAQ:APLD), another AI capacity developer, rounds out the peer group; APLD stock is declining 6% to $21.19.

Zero-Interest Notes and a Share Exchange Spark the Selloff

Cipher Digital priced a private offering of $850 million in zero-interest convertible senior notes to qualified institutional buyers. Part of the proceeds goes into capped call transactions meant to limit dilution on conversion, with the remainder funding an additional equity investment in the Barber Lake data center project. According to Cipher Digital, an amended lease with an AI lab raised Barber Lake’s contracted revenue and doubled its base term. The new investment covers the company’s share of that expansion.

Alongside the notes, Cipher Digital plans to exchange part of an outstanding convertible issue for 40.7 million common shares. Because the notes carry no coupon, Cipher Digital pays for this capital through its share count.

Contracted Growth Collides With a Rising Share Count

Cipher Digital builds and operates data centers leased to AI customers under long-term contracts, and it funds that construction largely with project-level secured bonds and parent-level convertible notes. Its contracted portfolio spans the Black Pearl, Barber Lake and Stingray campuses, with pipeline sites concentrated in Texas and Ohio.

Execution supports the bull case. Black Pearl delivered its first high-performance computing (HPC) capacity two months ahead of schedule, and Barber Lake rental payments are expected to begin in October. An option on a new Apollo data center site near San Antonio, Texas, extends the development pipeline further.

The bear case starts with Cipher Digital’s Q2 2026 results. They showed a wider net loss, driven largely by a non-cash warrant liability charge, alongside rising interest expense from project-level debt. Heavy borrowing already sits on its balance sheet, and each new financing has added to the shares outstanding, with those costs landing while much of the contracted rent is still growing, which leaves little margin for construction delays.

IREN and Applied Digital lean on the same model of long-term AI leases funded through the capital markets. For IREN, an AI cloud buildout for hyperscalers and frontier labs runs on committed graphics processing unit (GPU) financing and customer prepayments. Applied Digital, for its part, closed senior secured notes to fund a third HPC building at its Polaris Forge 1 campus in North Dakota.

Barber Lake Has to Outrun the New Shares

An open question for Cipher Digital is whether the Barber Lake expansion produces enough contracted cash to outrun a share count that has grown with each financing, and capped calls can reduce dilution if the notes convert, although the shares issued in the exchange arrive with no such protection.

Until amended-lease rent arrives, investors may limit their exposure, since it could decide how fast the stock rebounds from its two-session slip. Progress at Stingray and the HPC lease negotiations at the Odessa site offer a second test of whether contracted revenue can keep pace with new shares.

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