Bitcoin hashprice — the metric measuring mining revenue per unit of computational work, expressed as USD per petahash-second per day — collapsed from approximately $55 per PH/s/day in Q3 2025 to $35 by early December 2025. The 30-35 percent decline across approximately five months produced operational stress across the mining sector. Older-generation hardware (Antminer S19 series and predecessors) that had operated profitably at $55 hashprice became operationally marginal at $35. Mining ROI extended toward 1,000 days for typical new deployments. Q2 2026 hashrate fell approximately 5.8 percent to 1,004 EH/s as marginal operators progressively exited.

This Desk reads the hashprice collapse as the operational expression of Bitcoin price weakness combined with maintained network difficulty. With Bitcoin price moving from approximately $110,000 (early 2025) toward $80,000 (May 2026), per-block revenue declined materially while network difficulty had peaked at 155.9 trillion in November 2025 before subsequent moderating adjustments. The hashprice metric captures the combined effect: revenue per unit of computational work depends on both Bitcoin price and difficulty distribution.

Specific Hashprice Trajectory

Hashprice operates as derived metric requiring specific reconstruction.

Hashprice formula simplified. Hashprice = (block subsidy + transaction fees) × Bitcoin price ÷ (difficulty × hash adjustment) × 10⁵

In practice, hashprice is calculated and published by industry data providers (Hashrate Index, Spark, others) as USD per PH/s/day, representing what 1 petahash-second of mining capacity generates in revenue per day.

Q3 2025 levels: approximately $55-60 per PH/s/day. Bitcoin around $90-100K, difficulty around 110-120T.

Q4 2025 trajectory: declining through October-November as Bitcoin price moderated and difficulty continued increasing. Difficulty peaked 155.9T November 2025.

December 2025 levels: approximately $35-40 per PH/s/day. Bitcoin approximately $90-95K, difficulty 155T.

Q1 2026: stabilization around $35-40 with first downward difficulty adjustment to 146.4T.

Q2 2026 (May): approximately $30-35 with Bitcoin at $80K and difficulty around 140T.

The cumulative trajectory: roughly 35-45 percent hashprice decline from Q3 2025 peak to May 2026 conditions.

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Specific Hardware Generation Economics at Different Hashprice Levels

A specific arithmetic walkthrough across hardware generations.

Antminer S19j Pro+ (older generation, 122 TH/s, 3,355W). At $55 hashprice: 122 × $55 / 1000 = $6.71/day revenue. At $0.06/kWh power cost: 3,355W × 24h × $0.06 = $4.83/day cost. Net $1.88/day. At $35 hashprice: $4.27/day revenue. Net -$0.56/day. Operational shutdown.

Antminer S21 (current generation, 200 TH/s, 3,500W). At $55 hashprice: 200 × $55 / 1000 = $11.00/day. Power cost $5.04. Net $5.96. At $35 hashprice: $7.00 - $5.04 = $1.96. Marginal but positive. Continued operation depending on financial structure.

Antminer S21 Pro (latest, 234 TH/s, 3,500W). At $55 hashprice: 234 × $55 / 1000 = $12.87/day. Power cost $5.04. Net $7.83. At $35 hashprice: $8.19 - $5.04 = $3.15. Continued profitability though substantially reduced.

The arithmetic shows: older generations become operationally marginal or negative at $35 hashprice; current generation (S21 series) remains profitable but substantially compressed; latest generation (S21 Pro and equivalents) maintain reasonable margins.

Older-Rig Shutdown Pattern

The Q1-Q2 2026 5.8 percent hashrate decline reflects substantially older-rig shutdowns.

Specific shutdowns observed. Public miner reports through Q1 2026 disclosed substantial older-generation hardware retirement. Specific operators including various smaller-scale operators announced facility closures or operational reductions.

Geographic concentration of shutdowns. Higher-power-cost jurisdictions (specific provinces with elevated industrial rates) saw earlier and more substantial shutdowns. Lower-cost jurisdictions (Texas, North Dakota, specific other US locations) maintained operations longer.

Hardware refresh cycle dynamics. Operators choosing to refresh hardware faced choice between (1) replacing older units with current-generation S21 series at substantial capital cost, or (2) shutting down older units and absorbing capacity loss. With Bitcoin price uncertainty, both choices have been observed.

Sovereign and subsidized operations continuing. Bhutan continues at scale. Specific Russian operations continue. El Salvador volcanic-power operations continue. These operate outside standard commercial economics.

The combined pattern produces the observed hashrate decline through marginal-operator exit.

What Public Miners Are Reporting

Specific public mining companies through Q1 2026 reporting cycles.

Marathon Digital (NASDAQ: MARA). Largest US-listed pure-play Bitcoin miner. Q1 2026 reports continued operations at scale with specific hardware generation deployment. Treasury Bitcoin holdings substantial.

CleanSpark (NASDAQ: CLSK). Mid-tier pure-play with substantial Texas operations. Continued operations with specific operational adjustments.

Riot Platforms (NASDAQ: RIOT). Substantial Texas operations. Q1 2026 operational reports indicate continued operations with margin pressure.

Hut 8 (NASDAQ: HUT). Combined Bitcoin and AI/HPC operations. Q1 2026 reports indicate continued strategic pivot toward AI/HPC alongside Bitcoin operations.

Iris Energy (NASDAQ: IREN). Renewable-power-focused operations. Continued operations with specific renewable-energy framework.

The combined pattern across public miners: continued operations with margin pressure, specific operational adjustments, and varying degrees of strategic pivot toward additional revenue streams (AI/HPC, hosting services, others).

What Q2-Q3 2026 Specifically Tests

Three operational variables determine sector trajectory.

Bitcoin price recovery vs sustained weakness. Material recovery toward $100K supports broader operator survival. Continued weakness toward $70K-80K accelerates consolidation.

Hardware generation deployment pace. Operators continuing to refresh hardware face capital decisions. Capital availability and cost-of-capital affect refresh pace.

Power cost optimization. Operators with access to lower power costs (renewable PPAs, specific geographic advantages) maintain better margins. Specific power-cost developments affect operational viability.

The combined dynamics through Q2-Q3 2026 will determine whether sector consolidation completes at current levels or continues further.

What This Means for Builders Adjacent to Mining

Three operational considerations.

First, mining infrastructure investment cycle. Capital allocators considering mining infrastructure face substantially different economics than 2024-early 2025 conditions. New deployments require specific assumptions about hashprice trajectory, Bitcoin price, hardware generation, and power costs.

Second, mining-adjacent operational opportunities. Specific opportunities adjacent to mining (hosting services, energy management, hardware financing, etc.) operate within evolving framework as mining sector consolidates.

Third, broader Bitcoin protocol economics. Mining sector consolidation has long-term implications for Bitcoin protocol decentralization. Substantial concentration into top operators raises specific governance and security considerations.

What This Desk Tracks Through 2026

Three datapoints worth monitoring.

Hashrate trajectory through Q2-Q3 2026. Continued decline indicates ongoing consolidation. Stabilization or recovery indicates sector reaching equilibrium.

Public miner financial performance through quarterly reports. Specific margin trajectories, treasury Bitcoin accumulation, debt positions, and strategic pivots inform sector trajectory.

Bitcoin price interaction with mining economics. Material price movements substantially affect operator survival; sustained weakness or strength reshape sector composition.

Honest Limits

This Desk reads mining sector data from publicly available company filings, industry sources (Hashrate Index, Spark, Bitbo, others), and contemporary reporting in CoinDesk, Bloomberg, The Block. Specific hashprice and difficulty figures fluctuate; the May 2026 numbers reflect specific data through early May. None of this constitutes investment guidance.

Sources