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ToggleBitcoin mining difficulty saw a significant drop on Sunday, decreasing by 10.09% from 138.96 trillion to 124.93 trillion. This is the 11th largest downward adjustment in Bitcoin network history and the second largest drop in 2026, second only to the 11% decrease in February.
According to Galaxy Research's analysis on the X platform , this difficulty adjustment occurred at block 953,568, with the difficulty dropping from a peak of 138.96 megabytes to 124.93 megabytes, a decrease of approximately 20% compared to the November peak.
Behind the reduction in hashrate: Falling BTC prices squeeze miners' profits
Bitcoin prices fell by about 15% in June, which Galaxy noted "squeezed miners' profit margins." The mining difficulty adjustment cycle (epoch) was originally scheduled for about 14 days, but this time it was extended to 15.6 days because some hashrate was offline during the period.
According to Blockchain.com , the Bitcoin network hashrate is currently 886 million EH/s, down 12% from the beginning of the month and down 23% from its October peak. Crypto trader Merlijn Enkelaar estimated on X that the remaining miners' earnings per machine have increased by approximately 9%.
This is similar to the difficulty decrease logic in February 2026, when a storm cut combined with a 25% drop in Bitcoin price caused the difficulty to plummet by more than 11%. The largest drop in history was still 17% in July 2021 (the large-scale exodus after China banned mining).
Hashprice returns to the $30 mark
The decrease in difficulty has directly increased Hashprice, a metric that measures the expected return per unit of computing power. Hashrate Index data shows that Hashprice has climbed 13% to $33 per Petahash per second per day.
$30 is a key psychological threshold. The Energy Mag pointed out on Saturday that this means more miners have reached the break-even point. High-efficiency mining rig fleets can still be profitable at lower hash prices, but older models are more likely to be shut down due to higher electricity costs.
Next adjustment: A slight increase is expected on June 27th.
According to Coinwarz's prediction, the next difficulty adjustment will take place around June 27, with a slight increase of 1.69%, bringing the difficulty back to approximately 127 trillion.
As previously reported by Dongzhan, Bitcoin mining difficulty once jumped by 15% in 2025, marking the largest increase since the Chinese ban. This 10% decrease indicates that Bitcoin miners are experiencing a "redistribution of hash power," with inefficient machines being phased out and surplus capacity enjoying higher unit profits.
For Taiwanese investors, a decrease in mining difficulty typically means reduced cost pressure for miners, providing short-term support for Bitcoin prices. However, if BTC prices continue to decline, further exit of computing power could lead to a new adjustment cycle in the second half of the year.
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