Cipher Digital Inc. (NASDAQ:CIFR) experienced a surge in trading volume on Friday, closing at $25.94, a 1.0% increase, even as the broader tech market declined. The stock traded between $23.80 and $26.13, while the Nasdaq Composite fell 0.24% and chip stocks dropped 5.3%.
Volume was the standout metric, with 44.82 million shares changing hands, nearly double the average of 24.37 million. At the close, this represented approximately $1.16 billion in turnover, equivalent to about 11% of the company's $10.61 billion market capitalization.
However, the spike was largely attributed to the FTSE Russell index reconstitution, one of the year's heaviest trading events. FTSE Russell reported that approximately $12.2 trillion in assets are benchmarked to or invested in products tied to Russell U.S. indexes. The rebalance, which took effect after Friday's close, utilized NYSE and Nasdaq closing prices.
Nasdaq Inc. (NASDAQ:NDAQ) noted that 4.59 billion shares worth $334.027 billion were executed through its Closing Cross during the event, setting a record. Kevin Kennedy, Nasdaq's head of North American markets, described the close as a test of market infrastructure at 'record volume.'
Analysts had anticipated the impact. Steven DeSanctis of Jefferies warned of a 'really massive trade,' while Melissa Roberts of Stephens called Friday a 'key liquidity day.' For Cipher investors, the event clouded the underlying signal of the company's transition from bitcoin mining to AI data-center development.
Cipher, which changed its name from Cipher Mining on February 20, now positions itself as an AI power-and-data-center play. The company's annual filing reveals a 4.2-gigawatt data-center portfolio across 10 sites, with 600 megawatts of high-performance computing facilities under development for hyperscaler tenants. CEO Tyler Page stated in May that '2026 is the year of execution for Cipher,' following first-quarter revenue of $35 million, though adjusted EBITDA was negative $48 million. The company has also secured a third AI data-center campus lease and a $200 million revolving credit facility.
Power remains a critical near-term factor. On June 16, Cipher appointed former ERCOT grid official Bill Blevins as head of grid strategies. Co-president and chief legal officer Will Iwaschuk emphasized that 'securing and delivering power is the foundation of everything we do.'
Wall Street maintains a bullish outlook, though the margin for error has narrowed. Rosenblatt's Chris Brendler reiterated a Buy rating with a $30 target on June 25, while BTIG's Gregory Lewis reaffirmed a Buy with a $35 target on June 24. BTIG noted that prompt power demand is 'showing no signs of slowing down.' The stock closed at about 14% below its 52-week high of $30.14 but remains more than six times its 52-week low of $4.08.
The company's balance sheet is also under scrutiny. On June 8, Cipher priced $810 million of 6.000% senior secured notes due 2031 through Stingray Compute LLC, with proceeds intended to fund the Stingray data center, reimburse prior equity contributions, and fund debt service reserves.
Looking ahead, the key indicator will be post-rebalance trading. If volume normalizes and the stock holds near $26, the market is valuing the company's power access and lease execution. If it fades, Friday's $1.16 billion turnover may have reflected index flow rather than new capital betting on the AI data-center story.



