How profitable were ASIC miners in October?

INFBusiness
11.11.2025
Mining

All popular ASIC miner models remained profitable as of October 2025, according to analysts at Intelion Data Systems.

Despite the BTC network difficulty increasing by nearly 10%, not a single device posted a negative return. However, the results were uneven, with some models achieving over 47% annualized gains, forcing a rethink of conventional notions about market leadership in Bitcoin mining hardware.

Energy efficiency and cost-effectiveness are key factors

The leaders of the month were:

Bitmain Antminer S21 PRO 245 TH/s — 4.02% per month and 48.19% per annum;
MicroBT Whatsminer M60S+ 204 TH/s – 3.97% and 47.59%;
Bitmain Antminer S21 PRO 234 TH/s – 3.88% and 46.58%.

The greatest efficiency is observed in models that combine high energy efficiency, stable hashrate, and reasonable cost.

For the first time since June, Whatsminer entered the top three, reflecting a gradual alignment of positions between Bitmain and MicroBT. The Antminer S21 XP 270 TH/s once again led the way in terms of Bitcoin mined, but due to its high price, it lost out to more affordable models in terms of profitability.

Increased network complexity has not reduced margins

In October 2025, the network difficulty changed three times:

October 1 – growth of 5.97%;
October 16 – a decrease of 2.73%;
October 29 – growth of 6.31%.

The overall growth rate was 9.55%, but most models maintained returns in the 2.66–4.02% monthly range. This demonstrates that modern equipment can confidently handle network growth while maintaining positive financial results.

Top 5 Miners by Profitability in October 2025

Additionally:

Mining range is from 0.0018648 to 0.0035964 BTC per month.
The cost of hosting ranges from 13,990 to 16,700 rubles per unit of equipment.
Calculations are based on the average exchange rate of Bitcoin $114,372.54 and the dollar $81.03.

Macroeconomic conditions and the Bitcoin exchange rate

The average price of Bitcoin in October increased by $1,351.89 compared to September, reaching $114,372.54. Monthly highlights:

maximum – $125,268.18;
minimum – $107,110.01;
The dollar exchange rate is within 78.84–83 rubles.

This combination ensured stable ruble revenue amid growing network complexity and strengthening equipment at the top of the profitability rankings.

Mining maintains predictable profitability

October's results confirm the industry's resilience. Modern ASIC miners offer returns in the 32–48% annual range, remaining one of the most straightforward and cost-effective investment strategies. When choosing equipment, consider: