The mining difficulty of Bitcoin (BTC) slightly decreased on Saturday, after reaching a historical high of 1.269 trillion on May 31 at the start of the last difficulty adjustment period.
According to CryptoQuant, the current Bitcoin mining difficulty is approximately 1.264 trillion.
Higher mining difficulty and network hash rate (another related but independent metric that measures the total computational power protecting the Bitcoin protocol) both indicate increased competition among miners and rising production costs.
Miners continue to face financial pressure, including reduced block rewards after the halving in April 2024, rising operational costs, and increased mining difficulty, all of which have changed how mining companies strive to remain profitable.
Despite the challenges faced by miners in a highly competitive industry, some publicly listed Bitcoin mining companies are still expanding their operational capacity and choosing to hold mined BTC as an asset reserve.
Mining company MARA announced a 35% increase in its BTC production in May amid record hash rates and market volatility.
On April 5, the Bitcoin network hash rate surpassed 1 zetta hash per second (ZH/s) — a significant milestone for the decentralized currency protocol.
Nevertheless, MARA reported that it mined 950 Bitcoins in May, increasing its corporate asset reserve to 49,179 BTC — making it one of the largest Bitcoin holders in the world.
“For MARA, this is a record production month — we did not sell any Bitcoin,” the company's Chief Financial Officer Salman Khan wrote in a post on X on June 3.
CleanSpark, a publicly listed Bitcoin miner focused on protecting the network through clean energy, also increased its BTC production in May 2025.
According to its monthly report, the company mined 694 BTC that month, a 9% increase from April, bringing its total reserve to 12,502 BTC.
“We increased our end-of-month hash rate to 45.6 exahashes per second (EH/s), a 7.5% month-over-month growth,” CleanSpark President and CEO Zack Bradford wrote in the May update.
An increasing number of mining companies are accumulating Bitcoin as an asset reserve, a trend that also represents a significant shift in the business strategy of mining companies, which traditionally sold Bitcoin to cover operational costs.
Related: New Bitcoin (BTC) reserves may collapse under price pressure
Original article: “Bitcoin (BTC) mining difficulty falls slightly from recent all-time high”
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