JPMorgan analysts revealed today that the Bitcoin network experienced a roughly 3% decline in its monthly average hashrate in June, as miners scaled back operations amid a late spring heatwave—a seasonal and weather‑driven pullback rather than a structural downturn .

☀️ Heatwave Triggered Drop in Mining Power

• The network’s computational output fell about 3%, translating to a loss of approximately 10 EH/s off an ~890 EH/s baseline.

• This decline intensified mid‑month during peak temperatures, with some estimates showing a 15% plunge, from ~942 EH/s to 799 EH/s—the steepest dip seen in three years.

• JPMorgan highlights that major Texas-based operators like Cipher, IREN, and Riot, which collectively contribute over 80 EH/s, were among the leading sources of the pullback as grid strain and rising spot power prices forced rigs offline.

📈 Profitability and Market Response

• Profit resilience: Despite fewer machines running, miners saw improved earnings with a reported average of $55,300 per EH/s in daily block‑reward revenue—a solid 7% increase from April.

• Gross block reward profits rose 13% month‑over‑month, reaching monthly highs not seen since January.

• Market cap surge: U.S.-listed miners tracked by JPMorgan experienced a 23% jump in total market value during June, climbing to around $28.1 billion by June 27.

• HPC interest: Firms with high-performance computing operations, like Core Scientific and CoreWeave, outpaced pure-play miners, driven by speculation around a possible acquisition—this marked a notable point of investor enthusiasm.

🇺🇸 Rising U.S. Influence in Mining

• June saw U.S.-listed miners reach a record 31.5% share of global hashrate—a near doubling year-over-year, from a 55% Y/Y network increase to a 99% Y/Y gain for U.S. players.

• Notably, these firms added ~11 EH/s of capacity since April, with CleanSpark, Hive Technologies, and Riot Platforms being key contributors.

📊 What’s Driving the June Hasrate Dip?

1. Weather‑forced operational pauses

   • Facing soaring temperatures and costly cooling demands, many miners temporarily shut down rigs to avoid negative ROI.

2. Adaptive cost strategy

   • Pausing less efficient units helped preserve margins. Coupled with higher Bitcoin prices, miners maintained strong profitability.

3. Investor attention on flexibility & diversification

   • Markets rewarded miners that could pivot (e.g., HPC capabilities) and weather volatility—prompting higher valuations and strategic interest in deals like Core Scientific–CoreWeave.

🔮 Outlook & Implications

• Short-term rebound ahead?
  As temperatures ease, we can expect a rebound in hashrate as offline rigs come back online—likely pushing network difficulty upward again.

• Efficiency investments accelerate
  Heat-driven pauses underscore the need for newer ASICs, advanced cooling, and flexible power arrangements—factoring into capex decisions moving forward.

• Consolidation in mining + HPC sector?
  If Core Scientific–CoreWeave or similar tie-ups materialize, competition could tilt firmly toward miners with diversified compute stacks, not merely hashing capability.

✅ Key Takeaways Snapshot

As JPMorgan’s report makes clear, June’s mining slowdown reflects short-term constraints, not a weakening of Bitcoin’s proof-of-work backbone. The key takeaway: resilient, efficient, and diversified operations—especially those with flexible power and compute setups—will likely dominate the next phase of mining growth.