(Bloomberg) — Shares of the large-scale computing outfits that make Bitcoin work are once again outperforming the original cryptocurrency, as more pivot to hybrid models built around artificial intelligence and high-performance computing.
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Long-ago dubbed miners because of the perceived similarities to the mining of traditional commodities such as gold when creating Bitcoin, the companies have often been at the mercy of the volatile price swings experienced by the token. Two years ago, the sector benefitted at the initial start of the AI boom, only to see their share prices tumble the following year as mining profitability declined and competition increased.
Even with the crypto market carnage over the past week, Bitcoin is still up about 14% in 2025, and within striking distance of the all-time high of almost $126,000 reached at the start of the month. Investors have stampeded into the token since the second Trump administration embraced a pro-crypto agenda.
Yet, the biggest winners of this year’s crypto comeback aren’t Bitcoin holders but the miners themselves. A fund tracking listed mining firms has soared more than 150% year-to-date. Unlike during past cycles, when the miners would rally while Bitcoin was gaining, the companies are now being viewed for what they are becoming: tech infrastructure firms.
“Investors are almost exclusively valuing Bitcoin miners for their HPC/AI opportunities at this point,” said John Todaro, analyst at Needham & Co. “We would say less than 10% of our conversations on miners are actually on Bitcoin and mining.”
Cipher Mining Inc. and IREN Ltd. exemplify the trend. Shares in the Nasdaq-listed firms have soared about 300% and 500%, respectively, this year as they pivot from pure Bitcoin mining to AI infrastructure. Earlier in 2025, Cipher signed a 10-year, roughly $3 billion colocation deal with Fluidstack — backed in part by Google — which guaranteed $1.4 billion in lease obligations in exchange for warrants representing a 5.4% stake. The agreement is one of the clearest signals yet that the line between crypto mining and AI computing is blurring.
IREN, meanwhile, closed a $1 billion convertible notes offering on Wednesday. TeraWulf Inc., a US-based miner, also announced plans this week to issue $3.2 billion in senior secured notes to finance an expansion of its Lake Mariner data center in Barker, New York.


