Bitcoin Miners Pour Billions Into AI Infrastructure as Revenue Trails Far Behind
Key Takeaways
- •BlocksBridge said 15 Bitcoin miners and AI data-center companies spent $30.7 billion on capital assets in their latest 2026 reporting periods.
- •That spending was 42.6% higher than the $21.53 billion the same group spent across all of 2025.
- •Nine comparable miners spent $5.11 billion on capital assets in the first half of 2026 while reporting $341.2 million in AI and HPC revenue, a ratio of about 15 to 1.
- •Those nine miners generated $205.8 million from AI and HPC in the second quarter, up 52% from the previous quarter.
- •CoinShares rebranded its WGMI fund to include miners, data center operators, AI semiconductors, power generation and HPC holdings.
Public Bitcoin mining companies are committing billions of dollars to capture artificial intelligence and high-performance computing (HPC) revenue, but returns have yet to keep pace — a gap that underscores the scale of upfront investment required to diversify beyond Bitcoin mining.
In its latest Miner Weekly newsletter, BlocksBridge Consulting reported that a group of 15 Bitcoin miners and AI data-center companies spent a combined $30.7 billion on capital assets in their latest 2026 reporting periods. That figure is already 42.6% higher than the $21.53 billion the same group spent throughout all of 2025 — an outlay that mirrors, at smaller scale, the data-center investment cycle underway across the broader technology sector, where the largest cloud and AI companies have each committed tens of billions of dollars a year to new capacity.
Among Bitcoin miners specifically, the imbalance between capital spending and AI revenue remains pronounced. Nine comparable miners spent $5.11 billion on capital assets during the first half of 2026 while generating just $341.2 million in directly reported AI and HPC revenue — a capex-to-revenue ratio of roughly 15 to 1.
BlocksBridge calculated capital spending from cash purchases and allocations to hardware, property, equipment and other productive assets, after accounting for proceeds and refunds from asset sales.
Despite the gap, AI and HPC revenue is accelerating. The nine miners generated $205.8 million from those businesses in the second quarter, up 52% quarter-on-quarter, with Core Scientific, TeraWulf and Bitdeer among the companies reporting gains. Whether that pace holds as newly contracted capacity enters service is the key variable for how quickly the 15-to-1 imbalance narrows.
The steep cost of pivoting to AI
AI and data centers have been promoted as a way for Bitcoin mining companies to diversify amid challenging conditions in the mining sector — pressures that sharpened after the April 2024 halving cut the block subsidy from 6.25 BTC to 3.125 BTC, reducing the revenue earned for each unit of computing power — but BlocksBridge’s data shows the pivot carries substantial upfront costs.
“Power contracts and available land may give miners a starting advantage, but converting those assets into AI-ready capacity requires substations, buildings, cooling systems, networking equipment and, in some business models, GPUs,” BlocksBridge said.
Much of the new capacity is also being built to host outside AI cloud providers under multi-year contracts rather than to expand mining operations — the approach Core Scientific has taken through its GPU colocation agreements with CoreWeave.
It remains to be seen whether Bitcoin’s latest price recovery will provide relief for companies that still maintain sizable mining operations. Bitcoin has surged more than 13% this week and climbed back above $72,000 after the US Treasury said it would at least double the maximum size of its long-term bond buybacks to $4 billion per operation — a move aimed at improving liquidity in the Treasury market that initially pushed yields lower and boosted risk appetite.
The shift toward AI and HPC is also visible in the exchange-traded fund space. CoinShares this week announced a change in strategy for its industry tracking ETF, now branded the CoinShares Bitcoin Mining and Digital Power ETF (WGMI). The fund debuted in 2022 as Valkyrie’s bitcoin-miners-only product and passed to CoinShares through its 2025 acquisition of Valkyrie’s ETF business, and the latest rebrand folds miners into a broader energy-and-compute universe. With $222.4 million in assets under management, the fund’s universe includes 29 holdings drawn from Bitcoin miners, data center operators, AI semiconductors, power generation and HPC — sectors CoinShares describes as “the businesses powering the digital economy.”
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