US-listed Bitcoin miners reached a combined $56 billion in market capitalization this September, according to a new report from JPMorgan. The 14 miners tracked by the bank saw their collective market cap rise 43% month-on-month, fueled by strategic expansions, renewable energy investments, and hosting partnerships like Cipher Mining’s HPC colocation deal with Fluidstack. Twelve of these companies outperformed Bitcoin itself during the month
The surge came as the Bitcoin network’s hashrate jumped 9% to 1,031 EH/s in September, marking a critical inflection point for the sector. Despite the valuation spike, profitability slipped: JPMorgan estimated daily block rewards fell 10% from August to $49,700 per EH/s, while gross profit dropped 17% year-over-year.
Still, miners like Bitfarms posted triple-digit stock gains, while IREN and Riot Platforms emphasized renewable power in Texas and Canada to offset rising energy costs and scale operations sustainably.
Miners shift from speculation to infrastructure
The $56 billion milestone echoes trends from early 2025, when U.S. Bitcoin miners posted record profits despite surging energy costs. JPMorgan’s Q1 analysis showed the top five earned $2 billion in gross profit with 53% margins, up from 50% in Q4, even as equity raises fell from $1.3 billion to just $310 million. That early profitability reinforced the idea that capital-intensive infrastructure can unlock long-term value.
Today, miners are less considered speculative BTC proxies and more as digital infrastructure operators bridging crypto with real-world energy markets. This shift mirrors rising institutional demand for tokenized assets and off-exchange collateral, as miners refine cost bases and embrace renewables.
Their balance sheets now resemble high-growth utilities, implying valuations may rise further, even amid margin pressure.
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