On August 28, Cipher Mining Inc. fell 5.34% in regular trading, trading at $15.88/share, with turnover of $77.23 million. The stock gave back gains from the prior session, which had been fueled by news of a 15-year, $6 billion lease agreement with Amazon and Nvidia's better-than-expected earnings report.

The broader AI data center sector came under selling pressure on the same day, with peer IREN Ltd declining 9.59%, signaling widespread profit-taking across the group. Despite securing the landmark Amazon agreement to deliver 300 MW of AI compute capacity starting this year and advancing the 1 GW Colchis campus in West Texas (95% ownership), near-term fundamental headwinds continue to weigh on the stock. Cipher reported a Q2 loss of $0.65 per share, far worse than the consensus estimate of $0.22, while revenue of $24.8 million fell 43% year-over-year, leaving short-term sentiment fragile even as the company's AI data center transformation narrative provides longer-term support.

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