Bitcoin mining margins have turned sharply negative. Checkonchain’s difficulty regression model, which estimates average production costs from network difficulty and energy inputs, put the cost of producing one BTC at $88,000 as of March 13. With bitcoin trading near $69,200 on Sunday, the gap is close to $19,000 per coin, leaving the average miner operating at roughly a 21% loss on each bitcoin produced.
The pressure had already been building after bitcoin fell from $126,000 in October to below $70,000, but the war involving Iran intensified the squeeze. Oil above $100 feeds into electricity costs for mining operations, especially for the share of global hashrate exposed to energy markets tied closely to Middle Eastern supply. The report estimated that about 8% to 10% of global hashrate falls into that category.
Difficulty adjustment points to network strain
Stress is now visible in the network data. On Saturday, bitcoin mining difficulty dropped 7.76% to 133.79 trillion, the second-largest negative adjustment of 2026. Only the 11.16% decline during February and Winter Storm Fern was larger. Difficulty now sits nearly 10% below where it started the year, and well under the all-time high of nearly 155 trillion recorded in November 2025.
Hashrate has also retreated. The network is running at roughly 920 EH/s, below the 1 zetahash record reached in 2025. During the last epoch, average block times stretched to 12 minutes and 36 seconds, far above bitcoin’s 10-minute target. That slowdown shows the pullback in mining power is already affecting block production.
Hashprice drifts close to breakeven
Luxor’s Hashrate Index shows hashprice at around $33.30 per PH/s per day. That is near breakeven for most mining hardware, and not far from the all-time low of $28 reached on Feb. 23. For operators, falling BTC prices, higher power costs, and weaker network economics are hitting at the same time.
When miners cannot cover operating costs, they often sell bitcoin to keep facilities running. The report said that adds supply pressure to a market already dealing with 43% of total supply sitting at a loss, whale distribution into rallies, and leverage-heavy positioning. In that setup, mining economics feed directly into market structure rather than staying contained within the mining sector.
Public miners expand into AI and HPC
Listed mining companies are responding by reshaping their business mix. The article said Marathon Digital, Cipher Mining, and other firms have been building data center capacity alongside their mining operations, with a focus on AI and high-performance computing. Those businesses offer more predictable revenue than producing bitcoin at a loss.