Data: Investment bank Jefferies, Bitcoin mining profitability fell by over 7% in September

ChainCatcher news, according to CoinDesk, investment bank Jefferies pointed out in a report released on Sunday that as Bitcoin prices fell by 2%, while the network's hash rate surged by about 9%, Bitcoin mining profitability declined by over 7%, exacerbating the pressure on miners' profits in the fourth quarter of 2025.

In that month, North American listed mining companies produced 3,401 Bitcoins, down from 3,576 in August, with their share of the global network decreasing from 26% to 25%. Among them, MARA Holdings had the highest output at 736 Bitcoins, up from 705 in August; CleanSpark followed closely with 629 Bitcoins, down from 657 in August. The price drop also reduced revenue, with a theoretical mining rig of 1 EH/s generating about $52,000 in daily income in September, down from $56,000 in August, and nearly $43,000 a year ago. The price decline, coupled with rising network difficulty, continues to squeeze the profit margins of the mining industry.