CryptoSlate
Bitcoin is trading just above $60,000 against an all-in network production cost near $84,300 per coin, a gap that has left the average miner underwater for weeks. On June 18, difficulty fell 10.09%, from 138.96 trillion to 124.93 trillion, the second-largest downward adjustment of 2026 and the eleventh-largest in Bitcoin's history. That epoch ran 15.6 days against a 14-day target because so many higher-cost machines went dark once their margins disappeared.
Hashprice collapsed from a July 2025 peak near $63 per petahash per day into the high $20s by early June, the level Hashrate Index and most operators treat as gross breakeven before debt and overhead. It has since clawed back above $30 in the wake of the difficulty cut. CoinShares' Q1 2026 mining report put the weighted average cash cost to produce one Bitcoin among public miners at roughly $79,995 in Q4 2025, and estimated that 15% to 20% of the global fleet will end up underwater once power costs run high enough.
Why it matters
The dispersion across operators is the reason production cost cannot function as a price floor. A miner running latest-generation hardware below 15 joules per terahash on sub-5-cent power keeps a healthy margin in the same market where an older fleet paying 6 or 7 cents bleeds cash on every block. When Bitcoin drops, revenue per unit of hash drops with it, the highest-cost machines go uneconomic, and their operators sell BTC, switch off rigs, renegotiate power contracts, or raise fresh capital to ride it out. The protocol then lowers difficulty for whoever stays, relieving pressure slowly and unevenly, while the price does whatever it does.
What changed in this cycle is that the largest public miners now have a third option beyond hash or power down: pivoting into AI and high-performance computing. CoinShares counts more than $70 billion in cumulative AI and HPC contracts across the public sector and estimates listed miners could pull as much as 70% of revenue from AI by end-2026, up from roughly 30% today. Core Scientific's expanded CoreWeave deal runs to $10.2 billion over twelve years, TeraWulf has $12.8 billion in contracted HPC revenue, Hut 8 signed a $7 billion fifteen-year lease, and Bitfarms has dropped Bitcoin from its name entirely.
Market impact
Public miners have shed more than 15,000 BTC from peak treasury levels. Core Scientific offloaded about 1,900 coins in January and plans to clear most of what remains, Bitdeer cut its balance to zero in February, and Riot sold 1,818 coins in December.
Frequently asked questions
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Why can Bitcoin trade below the cost of production without breaking?
Because cost of production sorts producers, it does not support price. High-cost miners switch off or sell BTC, difficulty then adjusts lower for whoever stays, and the network keeps running. The protocol's self-correction works on hash, not on price.
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How large was the mid-June difficulty adjustment?
Difficulty fell 10.09%, from 138.96 trillion to 124.93 trillion, the second-largest downward reset of 2026 and the eleventh-largest in Bitcoin's history. The epoch ran 15.6 days against a 14-day target because so many high-cost machines went dark.
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What level does hashprice need to hold for miners to stay solvent?
Hashrate Index and most operators treat the high $20s per petahash per day as gross breakeven before debt and overhead. It peaked near $63 in July 2025, sank into the high $20s by early June 2026, and has since recovered above $30 after the difficulty cut.
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How much BTC have public miners sold from their treasuries?
Public miners have shed more than 15,000 BTC from peak holdings. Core Scientific offloaded about 1,900 coins in January, Bitdeer cut its balance to zero in February, and Riot sold 1,818 in December, with Q1 2026 alone exceeding all of 2025.
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Why are Bitcoin miners pivoting to AI?
Hashprice compression makes pure mining uneconomic for many operators, and AI compute offers higher-margin contracted revenue. CoinShares counts $70B+ in cumulative AI and HPC contracts across public miners, projecting AI could reach 70% of revenue by end-2026 versus ~30% today.
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