[U.S. Fund Alpine Fox Capital Lists Bitcoin Mining Firm Cipher Mining as Top Holding] May 15 news: U.S. investment firm Alpine Fox Capital submitted a 13F filing to the U.S. SEC, revealing that as of Q1 2026, it held 3.762 million shares of Bitcoin mining company Cipher Mining (CIFR), valued at approximately $48.4 million, making it the largest proportion of its disclosed investment portfolio. The fund's total holdings amount to approximately $154 million. Additionally, it holds 750,500 shares of Bitcoin mining company IREN, valued at approximately $25.7 million.