The Most Over-Read Number in Crypto

Every Friday, someone posts the max pain number and says Bitcoin will be dragged to it. Sometimes it lands there. The reasoning behind the claim is far weaker than the confidence with which it is made — and the best evidence for pinning comes from a market that works nothing like this one.

Max pain is not nonsense. There is a real mechanism, and there is real academic evidence for it. But the evidence measures an effect roughly a hundred times smaller than the moves people invoke it to explain, and it was measured in equity options, where several conditions hold that do not hold in crypto.

What the number actually is

For every strike price, you can ask: if Bitcoin settled exactly here at expiry, how much would all outstanding options be worth? Calls below that price have value, calls above it expire worthless, and puts are the mirror. Add up the total payout to option buyers at each candidate price, and the strike with the smallest total is max pain.

Because every dollar a buyer receives is a dollar a writer pays, the price that hurts buyers most is the price that benefits writers most. Hence the name. You can see the current level, and how it sits across the next expiries, on the live options page.

Max pain is a description of where the open interest sits. It is not a prediction, and it is not a plan.

Two things follow immediately. First, max pain moves — as positions open and close, the calculated strike shifts, sometimes daily. A number quoted on Monday for a Friday expiry is describing Monday's book. Second, it is computed from open interest, so it tells you about positions taken in the past, not about intent.

The mechanism that is real

The credible story has nothing to do with conspiracy. It is about hedging.

An options market-maker who has sold contracts does not want directional risk, so they hedge by holding an offsetting amount of the underlying, adjusted continuously as price moves. That adjustment is mechanical, and near expiry it becomes violent: an option sitting right at its strike flips between behaving like a full position and behaving like nothing at all as price crosses back and forth.

Here is the part that matters. If market-makers are net long options, their hedging is stabilising: price rises, they sell; price falls, they buy. That damping can hold price near a heavily-traded strike. If they are net short options, exactly the same mechanism runs in reverse and hedging amplifies moves away from the strike.

So the pinning effect is not a property of expiries. It is a property of who is holding which side, which is not something you can read off a max pain chart.

What the research found

The serious work here is Ni, Pearson and Poteshman's Stock Price Clustering on Option Expiration Dates, published in the Journal of Financial Economics. They found that on expiration dates, closing prices of optionable US stocks cluster at strike prices to a statistically unmistakable degree, and attributed it to exactly the two mechanisms above: market-maker hedge rebalancing, and in some cases deliberate positioning by proprietary traders.

Now the size. The effect they measured altered expiration-date returns by an average of at least 16.5 basis points — about a sixth of one percent.

That is a real, robust, and genuinely interesting market microstructure finding. It is also nothing like the claim that Bitcoin will travel two thousand dollars to reach a strike. When a max pain post explains a 3% move, it is invoking a mechanism roughly twenty times larger than the one anyone has demonstrated.

Why crypto pins less, not more

Even that modest effect should be weaker for Bitcoin, for four structural reasons.

• Settlement is cash, and by index. Deribit contracts settle against a time-averaged index across several spot exchanges, not a single closing print. You cannot pin an average the way you can nudge a close — the very mechanism the equity studies rely on is blunted by construction.
• There is no close to manipulate. Equity expiries settle on prices set in a market that opens and shuts. Bitcoin trades continuously across dozens of venues, so there is no thin, decisive final minutes for a hedging flow to dominate.
• Options are the small market here. In equities, options open interest is large relative to the tradeable float. In Bitcoin, options open interest is a fraction of a market whose perpetual swaps turn over far more every day. The hedging flows are not big enough to move the underlying against real directional flow.
• Expiries are constant. Bitcoin has daily expiries, plus weeklies, plus monthlies and quarterlies. Most of them are small. Any pinning story is only worth entertaining for the large monthly and quarterly dates, and only when nothing else is happening.

How to actually use it

Max pain earns its place as a map of positioning, not as a price target. Three readings are genuinely informative:

The gap between spot and max pain. A large gap says the options market is positioned a long way from where price actually is — someone is wrong and will be adjusting. It does not tell you which way the adjustment goes.

The shape across expiries. This is where the live chart earns its keep. If max pain rises steadily across the next few expiries, the book is positioned for higher prices; if it drops sharply at the monthly, a lot of downside protection or upside supply is clustered there. The list of numbers hides that; the curve does not.

Whether it moves. A max pain level that shifts materially in a day means large positions opened or closed. That is real news about flow, and it is the one thing max pain reports faster than anything else.

The honest summary

There is a mechanism. It has been measured. It is small, it is conditional on dealer positioning you cannot observe, and the conditions that produce it are weaker in crypto than in the market where it was found.

Treat max pain the way you would treat any other positioning data — alongside funding, open interest and liquidations, as a description of where the market has committed itself. The moment someone tells you price must go to a strike, they have stopped describing the market and started narrating it.

Frequently asked questions

What is max pain in Bitcoin options? Max pain is the strike price at which the largest dollar value of outstanding options would expire worthless — the point of maximum loss for option buyers and maximum gain for writers. It is calculated from current open interest, so it changes as positions open and close.

Does Bitcoin price actually get pinned to max pain? Weakly at best. Research on US equity options found that expiration-day returns are altered by an average of at least 16.5 basis points through market-maker hedging — a real but very small effect. Bitcoin should pin even less, because contracts settle against a time-averaged index across several exchanges, trade continuously with no closing auction, and have options open interest that is small relative to perpetual swap turnover.

Is max pain useful at all? Yes, as a map of positioning rather than a price target. The gap between spot and max pain shows how far the options book sits from reality, the shape of max pain across successive expiries shows which direction the book is leaning, and a sudden shift in the level signals that large positions have opened or closed.

Related reading: The Tail That Wags the Spot Market on how funding, basis and open interest fit together, and Are We There Yet? on valuation rather than positioning.

This essay is part of BTCDash Research. Nothing here is financial advice — it is analysis and background for your own research. Bitcoin is volatile; do your own diligence.