Max Pain
The strike price at which the largest dollar value of options (calls + puts combined) would expire worthless — the theory being that price gravitates there into expiry as dealers delta-hedge.
Max pain is the strike at which aggregate open interest in both calls and puts results in the maximum total loss (i.e. maximum options expiring worthless) for option buyers — and by extension, maximum profit for option sellers (dealers and market makers).
The theory holds that dealers who are net short options will delta-hedge in a way that passively nudges price toward the max pain strike as expiry approaches, since that is where their hedging obligation is minimized. It is not a rule — large directional flows can easily overwhelm the gravitational pull.
Treat max pain as one contextual input near expiration, especially for highly optioned underlyings like SPY or large-cap tech. When max pain aligns with a key technical level, the confluence deserves attention.
Related Terms
Delta
The rate of change in an option's price for a $1 move in the underlying. Ranges from 0 to 1 for calls and −1 to 0 for puts.
IntermediateExpiration Date
The last date on which an option can be exercised; after this date the contract ceases to exist.
IntermediateImplied Volatility
The market's forward-looking expectation of volatility, derived by solving the options pricing model for the volatility that matches the observed premium.
AdvancedOpen Interest (Options)
The total number of outstanding (unclosed) option contracts at a given strike and expiry. Rising OI confirms new money entering; it gauges liquidity and where positioning is concentrated.
IntermediateOptions Chain
The quoted matrix of all available calls and puts for a given underlying, organized by strike and expiration date, showing bid/ask, IV, volume, and open interest.
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