On March 21, as a result of another recalculation, the mining difficulty $BTC fell by 7.76% — to 133.79 TH.

Despite the correction of the indicator, the average interval between blocks at the time of writing exceeds 11 minutes.
The last drop in difficulty was the second deepest since the beginning of the year — on February 7, the parameter plummeted by more than 11%. The main factor at that time was a sharp drop in hash rate due to the shutdown of equipment as a result of a winter storm in the USA. The recovery was just as rapid.
The average total computational power of the network (a figure smoothed by a seven-day moving average) has been steadily declining after reaching a peak in mid-October 2025.

During this period, the hash rate fell from a record 1.15 ZH/s to 940 EH/s.
A reduction in difficulty $BTC of almost 8% caused a rebound in the hash price to levels above $33 per PH/s per day. Industry experts consider the average level of breakeven operation for miners to be around $40 per PH/s per day.

Current quotes for the first cryptocurrency are approximately $70,800 (CoinGecko). According to TheEnergyMag, among the 14 largest public mining companies in the USA, only IREN and the family-affiliated American Bitcoin Corp. related to Donald Trump are profitable.

The calculations of the publication's specialists are based on corporate financial reporting data for the fourth quarter of 2025.
Under pressure on the mining economy, industry participants are diversifying into more profitable AI services and seeking other ways to enhance business profitability.
BitFuFu is betting on cloud mining.
At the end of 2025, BitFuFu reported a net loss of $57.4 million compared to a profit of $54 million for the previous period.
Total revenue increased to $475.8 million, of which income from cloud mining services was $350.6 million. The share of revenues from the service reached a record 73.7%, with a year-on-year growth of 29.9%.
Independent mining brought in revenue of $63.1 million, while the sale of cryptocurrency mining equipment amounted to $53.7 million. The latter segment demonstrated an annual growth of over 76% year-on-year.
The BitFuFu client base expanded to 675,765 users. The hash rate under the firm's management was 26.1 EH/s with installed capacity of 478 MW.
The company held 1778 $BTC at the end of 2025.
“We remain focused on advancing our vertical integration strategy by scaling cloud mining, expanding capacity while maintaining disciplined profitability, optimizing capital allocation, and further increasing our treasury,” said the BitFuFu press release.
Let us remind you that Wintermute specialists stated the traditional business model of bitcoin miners is outdated due to falling profitability.