Why max-pain matters

Max-pain is the strike at which the most options would expire worthless. As an expiry approaches, price tends to drift toward this strike — which makes it one of the simplest pinning patterns to read on the dashboard.

How max-pain is computed

For each candidate strike, sum the cost dealers would have to pay out if every in-the-money call and put were exercised against them. The strike that minimizes that total payout — the one where dealers lose the least — is the max-pain strike.

It's not a forecast. It's an accounting identity. But because dealer hedging flow is mechanical, the price often migrates toward it.

Why the magnet effect happens

Dealers are usually short the wings (short calls above the money, short puts below) and net long the money. Their hedge requirements peak at the wings, where gamma is highest. As expiry approaches, gamma at every strike rises sharply.

Now consider what happens if price drifts away from the cluster of strikes. The dealer's hedge has to rebalance violently — buying into rallies, selling into declines. That same activity, reversed, also pulls the price back when it overshoots: the dealer who bought to hedge a rally on day T now has to sell some of that hedge as gamma decays into expiry.

The net effect: a soft pull toward the strike where dealer payout is minimized. Not every expiry pins. But pinning is common enough — especially on monthly expiries with heavy positioning — that it's worth tracking.

Reading the dashboard

The dashboard shows max-pain as a single number above the strike-bar chart. The timeline view plots how max-pain has moved over the last 24 hours / 7 days — sharp drifts often precede a price catch-up.

If max-pain is well above spot, dealers have an incentive to push price up (buying); if it's well below, they have an incentive to push down. Magnitude matters: 2% away with a week to expiry is typically a non-event; 2% away on expiry day is a tight tractor beam.

Limits

  • Max-pain is most reliable in the last 24–48 hours before expiry. Earlier than that, positioning shifts can move the strike out from under the price.
  • It assumes dealers will actually hedge to flat. In thin liquidity (weekends, late US sessions for BTC), they may not — and price wanders.
  • It's a market-microstructure pattern, not a tradable edge. Don't take it as permission to fade momentum without a stop.
  • Max-pain is sticky. With $500-spaced strikes and OI moving only a few percent per day, the minimum strike can stay glued for days while spot wanders. That's not a pipeline bug — it's the math. The dashboard shows four other "magnet" candidates alongside max-pain (γ-flip, max |γex| strike, call wall, put wall) precisely because none of them on its own tells the whole story. See pin-candidates.