Bitcoin mining difficulty fell 10.09% over the weekend, dropping from 138.96 trillion to 124.93 trillion at block height 953,568, according to Galaxy Research. The adjustment ranks as the 11th-largest downward move in the network's history and the second-largest cut of 2026. The reduction followed a roughly 15% decline in bitcoin's price during June, which forced miners operating unprofitable machines to shut down capacity. Mining difficulty adjusts every 2,016 blocks to maintain average block production near 10 minutes—when hashrate exits the network, blocks arrive more slowly, triggering a downward retarget. The previous epoch ran about 15.6 days instead of the target near 14 days, prompting the weekend's historic adjustment.
Bitcoin Mining Difficulty Records 10.09% Weekend Drop
The new difficulty level marks the lowest point of 2026 so far and the lowest reading since July 2025. Galaxy Research attributed the adjustment to a price-driven margin squeeze, the same pressure behind other major difficulty reductions in 2026. Bitcoin has now seen three downward difficulty adjustments exceeding 5% this year, including an 11.16% cut on Feb. 7 and a 7.76% reduction in March. The February and June cuts both rank among the 11 largest negative adjustments on record.
The adjustment followed a sharp deterioration in miner economics after bitcoin fell roughly 15% in June, forcing operators to shut down machines that were no longer profitable at current power and hardware costs. When hashrate leaves the network, blocks arrive more slowly—the previous epoch ran about 15.6 days instead of the target near 14 days, triggering the downward retarget.
Hashprice Rises Above $30 Per Petahash Following Adjustment
A 10.09% difficulty reduction increases the bitcoin produced per unit of active hashrate by about 11%. Hashprice moved back above $30 per petahash per second per day, reaching $32.31 on Sunday, after falling into the high $20s earlier in June. That earlier level was widely viewed as near gross breakeven for higher-cost operators.
The seven-day average network hashrate stood at about 894 EH/s after the adjustment. Average block times have also returned close to 10 minutes, suggesting that the hashrate that left the network has largely stabilized rather than continuing to fall. The next adjustment is currently projected to be roughly flat, near -0.8%, around June 27.
Production Cost Remains $84,300 Against $63,780 Spot Price
Checkonchain's difficulty-regression model estimated bitcoin's average production cost at about $84,300 as of June 13, down from roughly $87,000 earlier this year as difficulty retreated from January highs. With bitcoin trading near $63,780, spot price sits roughly a quarter below that estimated average production cost.
That leaves much of the network underwater on an all-in basis, even though individual miners with efficient fleets and cheap electricity may still generate positive operating margins. Hashprice moving back above $30 can keep some machines online in the short term, but it does not automatically cover debt service, depreciation, hosting costs, power contracts, and corporate overhead.
Miners Shift Power Capacity Toward AI Infrastructure
Some miners are reallocating power capacity toward artificial intelligence and high-performance computing, where long-term hosting contracts can offer more predictable revenue than bitcoin mining. That shift may reduce how quickly hashrate returns after price-driven shutdowns.
Public miners with stronger balance sheets may absorb pressure longer than smaller or higher-cost operators. The difficulty cut gives the miners still online more bitcoin per unit of active hashrate, but it does not fully repair the industry's cost problem.
FAQ
What caused Bitcoin mining difficulty to drop 10.09% over the weekend?
The difficulty fell from 138.96 trillion to 124.93 trillion at block height 953,568 after bitcoin's price declined roughly 15% in June, forcing miners to shut down unprofitable machines. The previous epoch ran about 15.6 days instead of the target near 14 days, triggering the downward adjustment.
How does the difficulty reduction affect miner revenue?
The 10.09% difficulty cut increases bitcoin produced per unit of active hashrate by about 11%. Hashprice moved back above $30 per petahash per second per day, reaching $32.31 on Sunday, after falling into the high $20s earlier in June.
Why are mining economics still strained despite the adjustment?
Checkonchain's model estimated bitcoin's average production cost at about $84,300 as of June 13, while bitcoin traded near $63,780. Spot price sits roughly a quarter below estimated production cost, leaving much of the network underwater on an all-in basis.
