In a notable turn of events, shares of prominent crypto mining companies Bitfarms, Cipher Mining, and Hut 8 surged after Jane Street, a well-known trading firm, revealed substantial positions in these firms. The source notes that this development has sparked interest in the Bitcoin mining sector, leading to significant stock price increases.
Jane Street's Holdings in Bitcoin Mining Companies
According to filings with the US Securities and Exchange Commission, Jane Street's trading affiliates hold approximately 54% of Bitfarms, alongside 5% stakes in both Cipher Mining and Hut 8. These positions suggest a passive investment strategy rather than an activist approach, which has contributed to the recent stock rally.
Stock Performance Following the News
On Thursday, following the news, shares of these companies saw impressive gains, with Bitfarms rising by 10.68%, Cipher Mining by 19.73%, and Hut 8 by around 17.27% by the close of trading on Friday. Other Bitcoin mining stocks, including:
- American Bitcoin Corp
- IREN Limited
- Hive Blockchain Technologies
also experienced upward momentum.
Jane Street's Interest in Bitcoin Miners
Jane Street, recognized for its proprietary trading and market-making activities, initially disclosed its interest in Bitcoin miners earlier this year through an investment in Marathon Digital Holdings. This latest disclosure comes on the heels of Google's announcement regarding its acquisition of a 54% stake in Cipher Mining on September 25, further highlighting the growing interest in the cryptocurrency mining sector.
As the cryptocurrency sector experiences a surge in stock prices, the tech industry is simultaneously grappling with significant layoffs affecting over 22,000 workers. For more details, see major layoffs.








