If you trade or watch crypto derivatives, you have probably seen a single price level mentioned in the days before a big options expiry, often described as the level where price "should" land. That level is the max pain price. It is one of the more misunderstood numbers in options analysis, partly because the name sounds dramatic and partly because people treat a descriptive statistic as if it were a prediction. This piece explains what max pain actually measures, how it is calculated, why some traders believe price drifts toward it, and where the idea breaks down.
What Max Pain Actually Measures
Max pain is the strike price at which the total intrinsic value of all outstanding options for a given expiry is at its minimum for the holders of those options. Said another way, it is the price at which the largest dollar amount of open contracts expires worthless, which is the same as the price at which option writers, the people who sold those contracts, keep the most premium.
The name comes from the buyer's perspective. At the max pain strike, the combined payout owed to call buyers and put buyers across every strike is as small as it can be. Calls that finish below their strike are worthless, and puts that finish above their strike are worthless. The strike that maximizes the total of those worthless contracts is the point of maximum financial "pain" for the option-buying side, and the mirror image of maximum benefit for the option-selling side.
Max pain is defined per expiry. Each weekly, monthly, or quarterly expiration has its own max pain level, because each has its own set of open contracts. A max pain number is meaningless without the expiry it belongs to.
How It Is Computed From Open Interest
Max pain is derived entirely from open interest, which is the count of contracts currently outstanding at each strike. It does not use price history, volatility, or any forecast. It is arithmetic over the current open positions.
The procedure is straightforward in concept. For every strike that has open interest, you treat that strike as a hypothetical settlement price and compute the total intrinsic value that all outstanding options would carry if the underlying settled there. At that candidate price, every call with a lower strike has intrinsic value equal to the settlement price minus the strike, multiplied by its open interest. Every put with a higher strike has intrinsic value equal to the strike minus the settlement price, multiplied by its open interest. Sum the call side and the put side to get the total payout owed at that candidate price.
