Bitcoin Mining Difficulty Sees Significant 10% Drop Amid Declining Hashrate

In a substantial shift within the cryptocurrency landscape, Bitcoin mining difficulty experienced a notable drop of 10.09% on June 15, 2026, marking its eleventh largest adjustment to date. This decrease, announced by Galaxy Research, comes as the mining ecosystem grapples with a declining hashrate, providing momentary relief to miners navigating increasingly tighter margins amid falling Bitcoin prices.

The difficulty adjustment altered the mining challenge for Bitcoin, reducing it from 138.96 trillion to 124.93 trillion at block 953,568. This adjustment is significant, representing the second-most severe decline of the year, surpassed only by an 11% dip in February. Data indicates that the average epoch duration—typically around 14 days—extended to 15.6 days during this adjustment period, largely due to considerable offline activity within the hashrate.

According to Blockchain.com, the total hash rate currently stands at 886 exahashes per second, a drop of 12% this month alone, and a staggering 23% decline since last October's peak. Galaxy Research reports that this backdrop has pressured miner profitability, with Bitcoin’s value declining approximately 15% over the course of June, leading to squeezed margins in an already challenging environment.

Within this context, the current mining landscape will allow remaining miners to earn roughly 9% more per machine. However, the financial viability for older-generation mining rigs remains uncertain as rising operational costs continue to weigh on profitability.

Historically, such shifts in mining difficulty reflect the volatile nature of the cryptocurrency market. The previous major adjustment occurred in February 2026, driven by adverse weather conditions and a drastic 25% drop in Bitcoin’s price. The most pronounced difficulty drop recorded in Bitcoin’s history happened in July 2021, following China's ban on cryptocurrency mining and the resulting mass exodus of miners.

Looking ahead, experts from Coinwarz predict the next difficulty adjustment scheduled for June 27 could see a slight increase of approximately 1.69%, reverting the level to around 127 trillion.

Importantly, as the mining difficulty declined, the hashprice rebounded above $30, currently sitting at $33 per petahash per second per day according to the Hashrate Index. This increase is considered a crucial threshold, as it enables more miners to achieve gross breakeven points in their operations, with efficient setups continuing to generate profits even in a lower hashprice environment. In contrast, older mining equipment facing higher energy costs is increasingly at risk of being decommissioned.

As the Bitcoin mining landscape adjusts, stakeholders and investors alike will be closely monitoring these dynamics that play a significant role in the broader cryptocurrency ecosystem.

Source: Cointelegraph

Source: CoinTelegraph - Cryptocurrency & Web3