Bitcoin miners are navigating a paradox in October 2025. The network hashrate has soared to an unprecedented 1,161 EH/s as of October 20, yet mining profitability is being squeezed to levels not seen since the April 2024 halving. The disconnect between record network security and declining miner margins tells a story of an industry in transformation.
TL;DR
- Bitcoin hashrate reached an all-time high of 1,161 EH/s on October 20, 2025, according to Bitget data
- Mining difficulty dropped 2.7% to 146.7 trillion but is projected to surge to 156.92 trillion on October 29
- JPMorgan reports that daily block reward revenue and gross profit both declined in October despite record hashrate
- Bitcoin price hit an all-time high near $126,000 in early October before correcting sharply
- Top-tier miners are pivoting toward AI data center infrastructure to diversify revenue
- Grayscale launched Ethereum staking ETFs in October, bringing institutional capital to proof-of-stake yields
Hashrate Hits New Heights
The Bitcoin network reached a historic milestone on October 20, 2025, as hashrate climbed to 1,161 EH/s (exahashes per second), breaking all previous records. The figure represents a remarkable increase from the roughly 700 EH/s recorded at the start of the year, reflecting massive deployment of next-generation mining hardware by both public and private operations worldwide.
According to JPMorgan’s monthly mining report released in early November, the Bitcoin network hashrate hit its record high during October, underscoring the continued expansion of mining infrastructure globally. However, the bank noted that mining profitability fell during the same period, with daily block reward revenue and block reward gross profit both declining as increased competition offset the benefits of higher Bitcoin prices.
The hashrate surge has been driven by the deployment of highly efficient new ASIC miners, particularly the Bitmain Antminer S21 series and similar models from competitors. These machines deliver significantly better performance per watt compared to previous generations, making them economically viable even at current difficulty levels.
The Profitability Paradox
Despite Bitcoin trading near $108,667 on October 20, miners are experiencing what analysts at ForkLog describe as the harshest profitability squeeze on record. The April 2024 halving reduced block rewards from 6.25 BTC to 3.125 BTC, and while prices have risen significantly since then, the combination of near-record difficulty and operational costs is compressing margins.
The weighted average cash cost to produce one Bitcoin among publicly traded miners continues to climb, driven by energy costs, hardware depreciation, and the ever-increasing difficulty of mining operations. Q4 2025 is shaping up to be the most challenging quarter for Bitcoin miners since the halving, according to CoinShares.
For smaller miners without access to cheap electricity or the latest hardware, the situation is particularly dire. Many are being forced to either upgrade their equipment at significant capital expense or shut down unprofitable operations entirely. The Bitcoin price correction from its October all-time high of approximately $126,000 has only added to the pressure.
Mining Firms Pivot to AI Infrastructure
One of the most significant trends emerging from October 2025 is the accelerating pivot of Bitcoin mining companies toward AI and high-performance computing infrastructure. Firms like Core Scientific, Hut 8, and Iris Energy have been repurposing portions of their massive data center facilities to host AI computing workloads, which can generate significantly higher revenue per megawatt than Bitcoin mining.
BeInCrypto’s October mining report highlights that several mining firms began shifting their strategic focus toward AI-related data infrastructure during the month, aiming to diversify revenue streams and reduce dependence on Bitcoin price volatility. The transformation represents a fundamental shift in how mining companies view their core business — increasingly seeing themselves as digital infrastructure providers rather than pure-play Bitcoin miners.
This trend has implications for the broader mining ecosystem. As large players diversify, the Bitcoin network hashrate may eventually stabilize as fewer resources are dedicated to pure mining operations. However, in the near term, the deployment of more efficient hardware continues to push hashrate higher.
Ethereum Staking ETFs Enter the Scene
While Bitcoin miners grapple with profitability challenges, the Ethereum staking ecosystem received a major boost in October 2025 with the launch of Grayscale’s Ethereum staking ETF. The product allows institutional investors to gain exposure to ETH while earning staking yields of approximately 2.81% annually, creating a new competitive dynamic in the digital asset infrastructure space.
The staking ETF launch followed the successful implementation of Ethereum’s Pectra upgrade in May 2025, which introduced key improvements including EIP-7251’s increased validator cap of 2,048 ETH and EIP-7002’s triggerable withdrawals. These changes made institutional staking significantly more efficient and have attracted a wave of new capital into the Ethereum staking ecosystem.
Institutional staking platforms like FalconX and REX-Osprey ETFs are now offering regulated exposure to staking yields, providing traditional finance investors with a pathway into proof-of-stake returns without the technical complexity of running validators directly.
Looking Ahead: The Next Difficulty Adjustment
The next Bitcoin mining difficulty adjustment, expected on October 29, 2025, is projected to raise difficulty from 146.72 trillion to approximately 156.92 trillion — a significant increase of roughly 7%. This adjustment would reverse the recent dip and establish a new near-record level, further testing miner profitability.
For the mining industry, the coming months will be defined by the tension between rising operational costs and the potential for Bitcoin price recovery. Companies that have successfully diversified into AI infrastructure or staking services may prove more resilient than pure-play miners when the next market downturn arrives.
Why This Matters
The record hashrate of October 2025 demonstrates that Bitcoin network security continues to strengthen regardless of short-term price movements. However, the profitability squeeze facing miners highlights a maturing industry where efficiency and diversification matter more than raw scale. The emergence of Ethereum staking ETFs and the pivot of mining firms toward AI infrastructure signal a broader transformation in digital asset infrastructure — one where companies are no longer defined by a single blockchain but by their ability to adapt to evolving market conditions. For investors and industry observers, the message is clear: the mining and staking landscape of 2025 looks fundamentally different from even a year ago, and the pace of change is only accelerating.
Disclaimer: This article is for informational purposes only and does not constitute financial advice. Cryptocurrency mining and staking involve significant risk, including the potential loss of capital. Always conduct your own research before making investment decisions.
1161 EH/s is insane. went from 700 at the start of the year to nearly double. every miner is deploying next-gen hardware but somehow making less money doing it
JPMorgan confirming that both daily revenue AND gross profit declined despite record hashrate is the kind of cold data you need to read before buying mining stocks
grayscale launching ETH staking ETFs in the same month miners are getting squeezed is a perfect summary of where the industry is heading
the AI data center pivot is the only move that makes sense for mid-tier miners. you cant compete with marathon and riot on scale alone anymore