New York, July 29, 2026, 19:00 EDT — Regular U.S. trading concluded with significant after-hours activity. Cipher Digital Inc. (NASDAQ:CIFR) closed at $17.69, a decline of 13.4% on volume of 39.7 million shares, roughly 1.55 times its recent average. The drop erased an estimated $1.1 billion from the company's market capitalization.
The sell-off was not isolated to Cipher. Five of its peers in the AI data center space—IREN Ltd. (NASDAQ:IREN), Applied Digital Corp. (NASDAQ:APLD), TeraWulf Inc. (NASDAQ:WULF), Hut 8 Corp. (NASDAQ:HUT), and Core Scientific Inc. (NASDAQ:CORZ)—fell by an average of 12.7%. Bitcoin, in contrast, edged up just 0.2% to $63,862, underscoring that investors are viewing Cipher as an AI infrastructure play rather than a proxy for cryptocurrency.
Wall Street faced broad selling pressure, with the Nasdaq Composite dropping 1.74% after the Federal Reserve held interest rates steady at 3.50%–3.75%. AI infrastructure provider Vertiv Holdings Co. (NYSE:VRT) tumbled 17% after reporting revenue that missed expectations. Ryan Detrick, a strategist at Carson Group, noted the central concern is "how much pressure will they have to hike in September?" Elevated yields diminish the present value of future cash flows, a critical factor for data centers still under development.
Cipher's Sharp Reversal
Cipher shares have reversed sharply, erasing most of last week's gains. After closing at $23.15 on July 24—up 31.8% from the prior week—the stock has fallen 23.6% through Wednesday. From its July 23 closing high of $25.82, the decline now stands at 31.5%.
Two optimistic analyst calls failed to stem the slide. Chardan Capital's Bill Papanastasiou initiated coverage with a Buy rating and a $32 price target, while KBW raised its target from $27 to $32—roughly 81% above Wednesday's close.
Valuation and Execution Risks
Investors are pricing Cipher ahead of demonstrated revenue growth. The company reported first-quarter revenue of $34.8 million, entirely from bitcoin mining, with adjusted EBITDA of negative $48.2 million. Cipher has secured contracts for 700 megawatts of high-performance computing (HPC) capacity, forecasting $11.4 billion in contracted revenue and an average annual net operating income (NOI) of approximately $787 million. CEO Tyler Page has called 2026 "the year of execution."
However, the market cap of $7.17 billion implies a valuation of roughly 9.1 times projected annual NOI and 51 times annualized first-quarter revenue—both ratios excluding debt, construction costs, taxes, or project timelines. The company's two main projects, Barber Lake and Black Pearl (each 300 MW), have estimated contract revenues of $3.8 billion and $5.5 billion, respectively. Black Pearl is anchored by Amazon Web Services (NASDAQ:AMZN), while Alphabet Inc.'s (NASDAQ:GOOGL) Google provides limited support for Fluidstack commitments at Barber Lake.
Upcoming Earnings and Risks
Cipher's second-quarter earnings are due before the market opens on August 4, followed by an earnings call at 8:00 AM EDT. Key investor focus will be on mining income, losses, construction progress, lease schedules, capital requirements, and cash position. The company also faces significant risks: first-quarter interest expense of $59.2 million exceeded revenue, and it completed an $810 million issuance of 6% secured Stingray notes in June. Additional risks include project delays, cost overruns, tenant concentration, and rising interest rates.
Wednesday's session treated Cipher as a play on construction and financing. The August 4 report will test whether project execution can differentiate it from that sector association.
