Does max pain work?
Max pain is the strike where options would expire with the least total value, so buyers lose the most. Prices sometimes drift toward it into expiry, mostly when dealers are long gamma and hedging pins the price. It is a weak signal on its own and fails whenever news or a large trend moves the stock.
What max pain measures
For each candidate strike, add up what every call and put in that expiration would be worth if the stock closed there. The strike with the smallest total is max pain. It uses only open interest, not prices or volatility.
The usual story is that option sellers steer the stock there. There is no evidence of that kind of control in liquid markets. The better explanation for any pull is hedging.
When it tends to hold
If dealers are long gamma around the strikes near max pain, they sell rallies and buy dips, which pulls the price toward the heavy strikes. That pinning is strongest on the last day or two before a large expiration and in stocks with heavy open interest relative to daily volume.
When it fails
Earnings, macro data and strong trends overwhelm it. When dealers are short gamma, hedging pushes the price away from heavy strikes instead of toward them. Max pain also shifts as open interest changes, so a level read on Monday may not be the level on Friday.
Use it with gamma exposure: a max pain level that sits near a large positive-gamma strike is worth more attention than one standing alone.
Questions
- Is max pain a good trading strategy?
- Not on its own. It describes where open interest is concentrated, not where the price must go. Treat it as context for the last days before expiry.
- Which expiration should I use?
- The nearest expiration with large open interest, usually the monthly one. Max pain for an expiration months away says little about this week.
Related
- What is a gamma squeeze?
- 0DTE options explained
- Free gamma exposure chart
- SPX vs SPY gamma exposure
- Open interest vs volume in options
For education only, not financial advice. See the disclaimer.