Bitcoin Difficulty Is About to Fall for the First Time Since October — Why Miners Should Worry, Not Celebrate

Bitcoin's Difficulty Is About to Fall — and That Is a Warning, Not a Relief

Bitcoin's mining difficulty is on track to fall by about 2.3% at the next adjustment, due around November 12. It would be the first real decline since early October — and the reason it is falling is the part miners should worry about. Difficulty only drops when blocks arrive slower than the protocol's 10-minute target, and blocks only slow down when computing power leaves the network. Computing power leaves when miners can no longer make money. In other words, the coming cut is not a gift to struggling miners. It is evidence that some of them have already switched off.

The squeeze behind the signal is easy to measure. Hashprice — the daily revenue a miner earns for each petahash per second of computing power — fell from $40.24 on October 1 to $33.18 on November 1, a drop of about 17.5% in a single month. A separate weekly snapshot put hashprice at $32.86 per petahash per second per day on November 2, down 8.7% from $35.99 a week earlier. Miners now earn roughly $33.53 a day for each petahash per second they run. Against that backdrop, a 2.3% difficulty cut raises every machine's income by roughly the same percentage — about 45 cents a day for a 600 terahash machine, by one analyst's math. That does not undo a 17.5% revenue collapse. It barely dents it.

This article explains what the November 12 adjustment really means, which miners are most likely to go dark first, and what to watch in the days after the retarget. If you are new to how mining works, start with our complete guide to how Bitcoin mining works in 2026, which covers hashrate, difficulty and miner economics from the ground up.

What Bitcoin's Difficulty Actually Measures

Bitcoin's difficulty is a number that sets how hard it is to find the next block. Every 2,016 blocks — roughly every two weeks — the protocol resets it so that, given the computing power of the past two weeks, blocks would arrive about every ten minutes. When more machines join the network, blocks arrive faster, and difficulty rises to restore the ten-minute pace. When machines leave, blocks arrive slower, and difficulty falls.

That self-adjusting clock is one of Bitcoin's most important features, and one of its most misunderstood. A rising difficulty is usually read as a sign of network health: more security, more competition, more investment in hardware. A falling difficulty is often cheered as relief for miners. Both readings miss the point. Difficulty is a lagging thermometer, not a forecast. It tells you what miners did over the past two weeks, not what they will do next. And when it falls after a long climb, it usually means the weakest operators have already been forced out.

The current epoch illustrates the point. Blocks have been arriving every 10.25 minutes on average this epoch, a little slower than the 10-minute target. With roughly 38% of the epoch complete at the time the estimate was published, mempool.space data pointed to a drop of about 2.3% at the next adjustment, due around November 12 at block 975,744. That estimate can still change: a price recovery would bring switched-off machines back online and could erase the drop entirely. Treat it as a live forecast, not a done deal.

The Climb That Came Before the Fall

To understand why a small cut matters, look at the staircase difficulty just climbed. Difficulty rose 5.92% on October 16 and another 5.54% on October 29, reaching a record of about 148.4 trillion. A separate dataset puts current difficulty at 148.36 trillion, after rising 16.4% from 127.45 trillion before the September 19 adjustment. However you slice it, the direction was relentlessly up through October — while miner revenue per unit of computing power was falling just as relentlessly.

That combination — rising difficulty, falling revenue — is the classic miner squeeze. Each upward adjustment means every machine earns a slightly smaller slice of the same block reward. When Bitcoin's price is also sliding, as it has been since the October market shock, the squeeze tightens from both sides: fewer satoshis per terahash, and each satoshi worth fewer dollars. Network hashrate stood at about 1,032 exahashes per second on November 4, up 5.9% from a month earlier but still about 10% below its record of 1,149 exahashes per second. The network is still enormously powerful. The question is who is paying to keep it that way.

Forward markets offer a clue. Luxor's Hashrate Index analysis from October 30 implied network computing power of about 1,056 exahashes per second for November and 1,059 for December — close to the roughly 1,062 exahashes per second averaged during the epoch ending October 29, and consistent with competition increasing only slightly through December. In plain language: the market does not expect a wave of new machines to arrive and rescue margins. It expects a grind.

The Numbers Behind the Squeeze

Metric	Reading	What it means
Current difficulty	148.36 trillion	Near record levels after October's two big rises
Next adjustment estimate	About -2.3%, due around November 12	First real decline since early October — but only an estimate
Network hashrate	1,032 EH/s (November 4)	Up 5.9% in 30 days, still ~10% below the record
Hashprice, October 1	$40.24 per PH/s per day	The starting point of the squeeze
Hashprice, November 1	$33.18 per PH/s per day	Down about 17.5% in one month
Hashprice, November 2	$32.86 per PH/s per day	Down 8.7% week over week
Forward hashprice (Nov–Apr 2027)	$33.04 per PH/s per day average	No quick recovery priced in
Block time this epoch	10.25 minutes average	Slower than target — the reason difficulty is set to fall

One number in that table deserves emphasis: the forward hashprice. When miners and traders price future computing power, they are effectively betting on what mining will pay over the coming months. An average of $33.04 per petahash per second per day from November through April 2027 suggests the market expects the squeeze to persist, not snap back. That is the context in which the November 12 cut should be judged. A 2.3% adjustment is a rounding error against a 17.5% monthly revenue decline.

Which Miners Switch Off First

When difficulty falls, it is tempting to ask whether mining is "back." The useful question is different: which machines switched off, and why? The answer is almost always the same — the least efficient hardware on the most expensive power. Mining is a brutal efficiency contest, and the cutoff moves every two weeks.

Consider the spread. Modern hydro-cooled machines operate at under 10 joules per terahash, while older air-cooled units can need 20 to 30 joules per terahash — two to three times the electricity for the same computing power. At a hashprice near $33 per petahash per day, that efficiency gap is the difference between profit and loss for anyone paying retail or mid-tier power prices. Add in hosting fees, cooling, downtime and debt service, and the weakest operations go underwater first.

Here is a practical checklist for judging whether a mining operation is at risk when difficulty is high and hashprice is falling:

• Check the power price first: operations paying above roughly 6–7 US cents per kilowatt-hour are the first to feel a hashprice drop, because electricity is usually the largest cost.
• Check the machine efficiency next: units above about 20 joules per terahash are living on borrowed time at current hashprice levels.
• Check the debt load after that: miners who borrowed to buy hardware at peak prices must keep running to service loans, even at a loss — until they cannot.
• Check the pivot option last: some large miners are already shifting capacity toward AI computing, where power contracts can earn more than Bitcoin mining. That exit is quiet, permanent, and invisible in the hashrate data until the machines are gone.

That last point is not theoretical. Riot Platforms sold 79% of its Bitcoin for a $28 billion AI bet, a vivid example of how the largest miners are rethinking what their power is worth. When a miner can earn more renting compute to AI companies than mining Bitcoin, hashrate leaves — not with a press release about quitting, but with a quiet redeployment of power contracts. Difficulty then falls, and the headline looks like good news for everyone left. It is not. It is a sign that the marginal miner found something better to do.

There is also a concentration angle worth watching. Three Bitcoin mining pools now control 63% of all blocks, which means the network's security increasingly depends on a handful of large operators. When small and mid-sized miners switch off during a squeeze, that concentration tends to rise, not fall — because the survivors are the biggest, best-capitalized players. A difficulty drop that shakes out small miners can therefore make the network more centralized even as it makes mining slightly more profitable for whoever remains.

Why a Falling Difficulty Is Not a Buy Signal

It is worth stating plainly, because the myth recurs every cycle: a difficulty drop is not, by itself, a reason to buy Bitcoin, buy mining stocks, or plug in an old machine. Difficulty is backward-looking. It reacts to price and miner behavior; it does not cause them. Bitcoin's price is set by buyers and sellers on exchanges, not by the difficulty number. If anything, the causal arrow usually runs the other way: falling prices squeeze miners, miners switch off, difficulty falls.

History supports the caution. Difficulty has fallen sharply during past capitulations — and sometimes those moments did mark turning points, because capitulation is what bottoms look like. But the fall itself was never the signal; the signal was the exhaustion of selling, the return of demand, and the stabilization of price. A 2.3% adjustment is also far too small to be a capitulation marker. Real miner capitulations have produced double-digit difficulty drops as whole fleets went dark. This is a trim, not a purge — at least so far.

What would change the story? Three things, in order of importance. First, Bitcoin's price: a sustained recovery above $82,000–$85,000 would lift hashprice in dollar terms and bring switched-off machines back, possibly erasing the difficulty drop before it happens. Second, energy costs: cheaper power, seasonal hydro surpluses, or curtailed-rate deals would widen margins without any price move. Third, transaction fees: a sustained rise in on-chain activity would add fee revenue on top of the block subsidy, cushioning miners. None of those three is guaranteed, and the forward hashprice market is not betting on any of them arriving soon.

For a deeper look at whether mining still pays at these levels, read our analysis of whether Bitcoin mining is profitable in November 2026, which tracks the same hashprice squeeze in detail. And if you hold Bitcoin yourself rather than mine it, our guide on how to buy Bitcoin safely in 2026 covers custody and exchange choices, while the best crypto wallets of 2026, compared after the Binance hack covers where to keep it once you own it.

What to Watch After November 12

The adjustment itself is only the first data point. Here is what actually matters in the days that follow:

• Watch the size of the cut: if the final adjustment lands near the estimated 2.3%, the squeeze is mild. If it deepens toward 5% or more, more machines left than the early estimate suggested.
• Watch the next epoch's block times: if blocks speed back up toward 10 minutes quickly, switched-off machines are returning — a sign of price recovery or cheaper power.
• Watch the hashrate trend closely: a hashrate that keeps climbing despite falling hashprice means efficient new capacity is replacing old machines, not that the squeeze is over.
• Watch the miner stock and AI pivot news: further announcements of miners redirecting power to AI would confirm that the difficulty drop is structural, not cyclical.
• Watch the Friday jobs report reaction: macro data moves Bitcoin's price, and Bitcoin's price moves hashprice in dollars — the jobs report due Friday is the nearest catalyst that could rewrite this whole picture.

The honest summary is this: Bitcoin's network is not in danger. At over 1,000 exahashes per second, it remains the most powerful computing network on earth, and a 2.3% difficulty trim changes nothing about its security. But the miners securing it are under real pressure, and the coming difficulty drop is the market's way of telling you so. Celebrate the network's resilience if you like — just do not mistake a symptom of miner pain for a cure.

Frequently Asked Questions

When is Bitcoin's next difficulty adjustment?

The next adjustment is due around November 12, at approximately block 975,744, based on mempool.space estimates published in early November. The estimated change is a drop of about 2.3%, but the figure can move as more blocks are mined before the adjustment.

Why does Bitcoin's difficulty fall?

Difficulty falls when blocks arrive slower than the 10-minute target over a 2,016-block period. That happens when computing power leaves the network — usually because some miners are no longer profitable and switch their machines off. The protocol then lowers difficulty to restore the 10-minute block pace.

Is a difficulty drop good for miners?

Only slightly, and only for miners who are still running. A 2.3% drop raises each surviving machine's income by roughly the same percentage. But the drop itself is evidence that other miners already left because they could not make money — and a 2.3% gain does not offset a 17.5% monthly fall in hashprice.

What is hashprice, and why does it matter?

Hashprice is the daily revenue a miner earns per petahash per second of computing power. It combines Bitcoin's price, the block subsidy, transaction fees and difficulty into a single dollar figure. When hashprice falls, every miner earns less per machine, regardless of how efficient their operation is.

Does falling difficulty mean Bitcoin's price will rise?

Not by itself. Difficulty reacts to miner behavior and price; it does not set the price. Past difficulty drops have sometimes coincided with market bottoms, but only because they marked miner capitulation — the exhaustion of selling. A small 2.3% adjustment is not, on its own, a buy signal.

Which miners are most at risk right now?

The least efficient hardware on the most expensive power: older machines above roughly 20 joules per terahash, operations paying high electricity rates, and miners carrying heavy debt from hardware bought at peak prices. Large, efficient operators with cheap power and diversified revenue — including AI computing deals — are best positioned to ride out the squeeze.

Conclusion

Bitcoin's difficulty is about to fall for the first time since early October, and the temptation will be to call it good news. Resist it. The estimated 2.3% cut due around November 12 follows a month in which hashprice fell 17.5%, difficulty climbed to a record near 148.4 trillion, and forward markets priced no quick recovery. The machines that switched off to cause this drop are not coming back for a 45-cent-a-day raise. What comes next depends on Bitcoin's price, on power costs, and on whether more miners decide their electricity is worth more elsewhere. Watch the size of the cut, watch the block times after it, and watch the miners — not the difficulty number — for the real story.

Sources: mempool.space estimates via Medium analysis of the coming difficulty drop; network hashrate data from Maketo's Bitcoin hashrate tracker; current difficulty from MillionMiner's difficulty chart; miner revenue data from KuCoin's hashprice report. All figures are estimates or snapshots as published in early November 2026 and can change before the adjustment.