Bitcoin Mining Margins: The 2026 Squeeze, Explained
Bitcoin mining margins have thinned to multi-year lows in 2026 as the price slid under $60,000 while difficulty stayed near record highs. Here is how the math works and who is still in the black.
Bitcoin mining looks simple from a distance: plug in machines, earn Bitcoin, sell enough to cover the power bill. In 2026 the reality is a tight spreadsheet. With Bitcoin trading near $59,000 and network difficulty sitting close to its all-time high, the gap between what a miner earns and what it spends has narrowed to one of its slimmest points since the 2022 bear market. This explainer breaks down how mining margins are built, why they thinned this year, and how to read the numbers that listed miners file with the SEC.
What a Mining Margin Actually Measures
A mining margin is revenue minus cost, measured against the work a miner does. Operators express it two ways. The first is per unit of computing power: the daily dollars earned by one petahash per second (PH/s) of hashrate after electricity. The second is per coin: the all-in cost to produce a single Bitcoin against the price that coin fetches on the market. Both describe the same squeeze from different angles. For an investor, the per-coin view is the one that surfaces in quarterly results; for an operator on the floor, the per-petahash view is the daily reality.
It helps to separate gross margin from net margin. Gross margin counts only the direct cost of electricity, the number most miners watch hour to hour. Net margin layers in everything else: hardware depreciation, hosting fees, staff, cooling, pool fees, debt service, and corporate overhead. A site can post a healthy gross margin and still lose money once the full stack is included, which is exactly where parts of the industry sit today. That distinction matters for anyone reading a miner’s results, because a company can look profitable on a power-only basis and still burn cash once depreciation and debt are counted.
Hashprice: The Revenue Side in One Number
Miners track their top line through hashprice, a term Luxor’s Hashrate Index coined in 2019 to capture how much a unit of hashrate is expected to earn per day. It is quoted in dollars, or in Bitcoin, per PH/s per day, and it bundles every revenue input into one figure.
That figure has been falling. In the first week of June 2026, USD hashprice dropped 11.3% to about $28.94 per PH/s per day, near a post-halving low, according to Luxor’s Hashrate Index roundup. Hashprice moves with four inputs: the Bitcoin price, the block subsidy of 3.125 BTC, transaction fees, and the total network hashrate that miners split the rewards across. Fees have been a minor contributor lately, running near 0.92% of block rewards, so the subsidy and the coin price do most of the work.
The Cost Stack: Power, Hardware, and Overhead
Electricity is the dominant variable cost, often 60% to 80% of a miner’s cash expense. It is priced in dollars per kilowatt hour, and the rate a miner locks in is frequently the difference between profit and loss. Hardware efficiency, measured in joules per terahash (J/TH), decides how much power a machine burns for the same output; a newer rig near 17 J/TH does far more work per dollar of electricity than a 2022-era unit close to 30 J/TH.
Mining at this scale is energy intensive by design. The Cambridge Centre for Alternative Finance, which runs the widely cited Bitcoin Electricity Consumption Index, tracks network demand well above 100 terawatt hours a year, comparable to a mid-sized country. On top of power sit fixed and semi-fixed costs: depreciation on machines that age fast, colocation or hosting fees, maintenance, and corporate overhead. CoinShares put the weighted average cash cost to produce one Bitcoin among listed miners at roughly $79,995 in the fourth quarter of 2025, with all-in costs running much higher.
Running the Margin Math
Put numbers to it. Take a single Antminer S21 running at 200 TH/s. At a hashprice of $28.94 per PH/s per day it earns about $5.79 a day in Bitcoin, or roughly $0.029 per terahash. Running flat out it draws about 3.5 kilowatts, so at $0.05 per kilowatt hour its power bill is close to $4.20, leaving about $1.59 of gross margin before any other cost. Drop the hashprice or raise the power rate, and that cushion disappears fast. The table below shows the breakeven power price for three common machines, the rate at which gross profit hits zero.
| Machine | Hashrate | Efficiency (J/TH) | Daily revenue at $28.94/PH per day | Breakeven power price |
|---|---|---|---|---|
| Antminer S21 | 200 TH/s | 17.5 | $5.79 | $0.069/kWh |
| Antminer S19 XP | 140 TH/s | 21.5 | $4.05 | $0.056/kWh |
| Antminer S19j Pro | 104 TH/s | 29.5 | $3.01 | $0.041/kWh |
Read it as a survival line. At a typical industrial rate of $0.05 per kilowatt hour, the S21 and the S19 XP clear a gross profit while the older S19j Pro loses money on every coin. Push power to $0.07 and only the most efficient fleets stay above water. This is why a miner’s electricity contract can matter as much as the Bitcoin price.
Why 2026 Squeezed Miners
Two forces moved against miners at once. The Bitcoin price slid from about $81,000 in early May to near $59,000 by late June, a drop of roughly a quarter, per CoinGecko data. At the same time, network hashrate approached 1,000 EH/s (one zettahash) early in the year before winter-storm curtailment and margin pressure pulled it back toward the 900 EH/s range, keeping difficulty near record territory. When price falls and difficulty stays high, hashprice gets hit from both ends. Mining is reflexive that way: cheaper coins eventually push the least efficient machines offline, which lowers difficulty and lifts hashprice for the miners that remain, though that adjustment tends to lag the price by days or weeks.
There was brief relief in mid-June, when difficulty fell about 10% in one of the year’s largest downward adjustments, The Block reported, nudging spot hashprice back above $30. It did not change the bigger picture. JPMorgan analysts noted that Bitcoin had slipped below the industry’s average production cost, which they pegged near $78,000, a sign that mining economics had worsened.
The Halving Still Echoes
Every input traces back to the halving. In April 2024 the block subsidy fell from 6.25 BTC to 3.125 BTC, instantly cutting the largest piece of miner revenue in half. Transaction fees were supposed to take up more of the slack over time, but at roughly 1% of block rewards they have not come close. A handful of high-fee days can lift that share briefly, but no sustained fee market has emerged to replace the lost subsidy. Miners have spent the two years since chasing efficiency and cheaper power to absorb the shock, and 2026’s price weakness landed on top of that thinner baseline. The next halving, expected in 2028, will repeat the exercise and cut the subsidy to 1.5625 BTC.
Who Is Mining at a Loss
CoinShares estimated that 15% to 20% of the global fleet was running at a loss at a hashprice near $30, specifically any operator below an Antminer S19 XP paying 6 cents per kilowatt hour or more, in its Q1 2026 mining report. Headline all-in costs vary widely across listed miners, as the table shows, though those figures are inflated by the heavy depreciation and overhead tied to AI buildouts, which is why cash cost is a cleaner read on pure mining.
| Miner (ticker) | All-in cost to mine 1 BTC, Q4 2025 |
|---|---|
| CleanSpark (CLSK) | $118,932 |
| IREN (IREN) | $140,441 |
| MARA Holdings (MARA) | $153,040 |
| Core Scientific (CORZ) | $168,693 |
| Riot Platforms (RIOT) | $170,366 |
| Weighted average cash cost | about $79,995 |
The spread is the story. A low-cost operator producing coins in the low six figures all-in can ride out a sub-$60,000 market for a while; a high-cost one cannot, and may be forced to sell mined Bitcoin or dip into its treasury to fund operations.
The AI Pivot as a Margin Release Valve
With mining margins thin, the biggest operators have found another use for their power and real estate: renting it to artificial intelligence. More than $70 billion in cumulative AI and high-performance-computing contracts have been announced across the listed mining sector, and CoinShares expects some operators to draw as much as 70% of revenue from AI by the end of 2026, up from roughly 30% today. Core Scientific is the clearest case; CoinDesk reported that the company sold $208 million of Bitcoin in the first quarter as colocation revenue ($77.5 million) overtook its mining revenue ($30.1 million), backed by a 590 megawatt expansion with an AI cloud customer worth a projected $10.2 billion over twelve years. S&P Global has framed the shift bluntly: miners are pivoting to AI and HPC as the crypto market slumps. The trade-off is that hashrate redirected to AI is hashrate that leaves the Bitcoin network, a longer-term question for both security and the miners that stay.
What the Filings Reveal, and What to Watch
Because the largest miners are US-listed, their economics are public. Companies such as MARA Holdings, Riot Platforms, CleanSpark, and Core Scientific disclose cost per coin, fleet efficiency, power rates, and AI revenue in the 10-K and 10-Q reports they file with the SEC. MARA’s most recent annual report recorded $907 million in 2025 revenue, of which $839.2 million came from its own mining pool, in its Form 10-K. Anyone can pull and compare these numbers through the SEC’s EDGAR full-text search.
For readers tracking the sector, a short watchlist captures most of the margin picture:
- Hashprice against a miner’s electricity rate; the two together set gross margin.
- Fleet efficiency in joules per terahash, which fixes how much power each coin costs.
- Difficulty and total hashrate, which dilute everyone’s share of the block reward.
- Debt loads and AI contract revenue, which increasingly decide which miners survive a soft market.
The bottom line: a mining margin is never fixed. It is reset every block by the Bitcoin price, the network’s difficulty, and the power contract a miner signed months earlier. In 2026 all three have leaned the wrong way, and the spreadsheet shows it.
By the HOGE Wire markets desk, covering Bitcoin mining and staking. This article is for information only and is not investment advice.