Crypto mining stocks surged on Friday, with Bitfarms, Cipher Mining and Hut 8 extending gains after trading firm Jane Street disclosed significant positions in all three Bitcoin mining companies.
Filings reported to the U.S. Securities and Exchange Commission on Thursday show Jane Street affiliates own approximately 5.4% of Bitfarms, 5% of Cipher Mining and 5% of Hut 8, representing passive trading positions rather than activist assets.
Following this news, the company’s shares rose 8% to 13% on Thursday and continued to rise on Friday.
At the market close on Friday, Bitfarms (BITF) increased by 10.68%, Cipher mining (CIFR) 19.73% and Chata 8 (HUT) about 17.27%, according to Yahoo Finance data.
Other Bitcoin mining companies also posted gains on Friday, including American Bitcoin Corp., (+11.29%), IREN Confined (+12.60%) and Hive Digital Technologies (+17.77%).
Jane Street, a leading proprietary trading and market making firm dynamic in equities and digital assets, has disclosed its exposure to Bitcoin miners for the first time in 2023. investment in Marathon Digital (MARA) companies.
Jane Street’s disclosure comes after Google announced on September 25 that it had acquired a 5.4% stake in Cipher Mining.
Related: US Energy Secretary Provides Faster Direct Network Access for AI and Crypto Miners
Bitcoin mining companies will overtake Bitcoin in 2025
Bitcoin mining, the process of using specialized computers to solve sophisticated mathematical problems to verify transactions and put fresh bitcoins into circulation, is crucial to maintaining the efficiency and security of the network.
While individual Bitcoin miners sometimes get lucky and mine a block, the industry is increasingly dominated by Bitcoin mining companies, most of which have seen significant growth in 2025.
Over the past year, many Bitcoin mining companies have overtaken Bitcoin itself.
According to data from Yahoo Finance, Bitfarms is up almost 131% and Hut 8 is up about 211% over the last 12 months. As of this writing, the price of Bitcoin has increased by approximately 73% in one year.
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