Mike Alfred’s Alpine Fox hedge fund discloses holdings in Cipher, IREN, CleanSpark

Nov 14, 2025
By Blockspace Staff

Alpine Fox, a hedge fund run by investor and X influencer Mike Alfred, disclosed holdings in multiple Bitcoin mining stocks, along with bitcoin treasury firm Strive (NASDAQ: ASST), according to filings with the SEC.

Dated September 30, Alpine Fox held positions in Bitcoin miners Cipher Mining (NASDAQ: CIFR), CleanSpark (NASDAQ: CLSK), and IREN (NASDAQ: IREN), the largest being CIFR (5 million shares) followed by IREN (750,000 shares). 

The fund also held positions in BlackRock’s Bitcoin and Ethereum ETFs, IBIT, and ETHA, and Sharlink Gaming (NASDAQ: SBET), an Ethereum treasury company. 

Based on the latest Form 13F, the portfolio reports roughly $240 million in long U.S.-listed equities and long call options, as measured by the market value of those positions on the filing date. (The figure reflects the value of the stocks plus the market value of the call options themselves, not the larger notional exposure to the underlying shares and not the fund’s total AUM (it excludes cash, shorts, swaps, and other non-13F assets)).

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