Cipher Mining (NASDAQ: CIFR) saw its share price decrease significantly, closing at $11.64, a drop of 17.7%. Trading activity for the stock was exceptionally high, reaching roughly 153 million shares, a figure approximately 4.1 times greater than its average trading volume over the preceding three months.
Overall, market indices ended the day in negative territory. The S&P 500 (SNPINDEX: ^GSPC) experienced a 0.5% decline, settling at 6,604.72. Similarly, the Nasdaq Composite (NASDAQINDEX: ^IXIC) also fell by 0.5%, closing at 22,384.70. Market analysts attributed these declines to downward pressure from the technology sector.
Looking at other companies involved in Bitcoin mining, Riot Platforms (NASDAQ: RIOT) decreased by 7% to reach $16.74, and Hut 8 Corp (NASDAQ: HUT) dropped by 7.9%, ending at $34.88. These decreases corresponded with a decline in the value of Bitcoin (CRYPTO: BTC), which fell 3.4% to $109,534.50, impacting related stock values across the industry.
Cipher’s negative performance occurred despite a recent announcement of a significant 10-year agreement with Fluidstack for artificial intelligence (AI) hosting, estimated to be worth around $3 billion, with potential extensions that could raise the value to nearly $7 billion. Alphabet (NASDAQ: GOOGL) (NASDAQ: GOOG) is set to guarantee $1.4 billion in lease obligations under this arrangement and will obtain warrants, representing approximately 5.4% ownership in Cipher. Although the agreement signals Cipher’s diversification into high-performance computing, the stock’s trading performance demonstrated its ongoing sensitivity to fluctuations in Bitcoin’s price.
Market data sourced from Google Finance and Yahoo! Finance on Thursday, Sept. 25, 2025.
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Daily Stock News has no position in any of the stocks mentioned. This article was generated with GPT-5, OpenAI’s large-scale language generation model and has been reviewed by The Motley Fool’s AI quality control systems. The Motley Fool has positions in and recommends Alphabet and Bitcoin. The Motley Fool has a disclosure policy.
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