Shares of leading Bitcoin mining companies surged after Jane Street, a top proprietary trading and market-making firm, disclosed new holdings on Thursday. The revelation fueled gains in Bitfarms, Cipher Mining, and Hut 8, extending a months-long rally in publicly traded mining stocks.
SEC filings reveal that Jane Street’s trading affiliates own roughly 5.4% of Bitfarms, 5% of Cipher Mining, and 5% of Hut 8. These positions are passive trading stakes, not activist holdings, yet they sent an immediate signal of institutional confidence in the mining sector.
Following the announcement, mining stocks rallied between 8% and 13% on Thursday, with continued upward momentum on Friday. At market close, Bitfarms (BITF) gained 10.68%, Cipher Mining (CIFR) surged 19.73%, and Hut 8 (HUT) jumped 17.27%. Other miners, including American Bitcoin Corp., IREN Limited, and Hive Digital Technologies, also posted double-digit gains.
Institutional Interest Boosts Market Confidence
Jane Street first ventured into Bitcoin mining in 2023 via holdings in Marathon Digital (MARA), signaling a gradual institutional shift toward mining equities. This move follows similar market confidence trends, including Google’s 5.4% stake in Cipher Mining announced in late September.
Institutional participation often brings added liquidity and credibility, which can drive market momentum and attract retail investors seeking exposure to Bitcoin without holding the cryptocurrency directly.
Bitcoin Mining Companies Outperform BTC in 2025
The performance of Bitcoin mining firms has outpaced Bitcoin itself in 2025. Over the past year, Bitfarms has climbed nearly 131%, while Hut 8 surged approximately 211%, compared to Bitcoin’s 73% gain over the same period.
Bitcoin mining, the process of verifying transactions and generating new coins using specialized computers, has increasingly shifted from individual miners to larger, professionally managed firms. These companies benefit from economies of scale, energy-efficient operations, and institutional backing, positioning them as a core growth segment in the crypto ecosystem.
What This Means for Investors
Jane Street’s disclosure reinforces the narrative that institutional investors are taking serious positions in crypto infrastructure companies, not just Bitcoin itself. As mining companies continue to outperform BTC, equities in this sector are becoming an attractive way for investors to gain exposure to the cryptocurrency market while mitigating direct crypto volatility.
Disclaimer: The information in this article is for general purposes only and does not constitute financial advice. The author’s views are personal and may not reflect the views of CoinBrief.io. Before making any investment decisions, you should always conduct your own research. Coin Brief is not responsible for any financial losses.
