Understand Max Pain and Max Pain / Time

Read a payout calculation

Max Pain evaluates aggregate option-holder payout across hypothetical settlement strikes using the selected dated OI. Its minimum is the max-pain strike under that calculation. It is a reference model, not an exchange order, a forecasted settlement or proof of dealer intent. Max Pain / Time organizes that reference across expirations or eligible stored dates for one expiration.

Inspect one expiration before history

Choose a single dated expiration so the payoff population is clear.

1. Open Max Pain from Map → Open Interest or Add Tool.
2. Set the underlying/root and intended expiration.
3. Read the OI date and any coverage notice.
4. Hover the payout curve and compare its minimum with observed spot.
5. Open Max Pain / Time for expiration or stored-date comparison.
6. Match selections before comparing the reference shown in Key Levels.

Separate price coordinates and payout units

The horizontal axis describes hypothetical underlying settlement prices. The vertical payout measure is a monetary aggregate from contracts and dated OI. The minimum's strike is a price reference, not an amount of GEX. A futures display conversion, where supported by the host tool, changes an underlying coordinate without changing option-holder payout units. Nearby gamma concentrations can share a price but still be completely different calculations.

Worked example: max pain far from spot

Suppose spot is well above the calculated minimum. The chart says the selected OI-based aggregate payout is lower at another hypothetical settlement strike. It does not say price must move there or that any participant can force it. Inspect the expiry, OI date and excluded contracts. Then compare another stored date to see whether the reference changed. Keep the descriptive calculation separate from an unsupported explanation about manipulation or a guaranteed expiry pin.

Troubleshoot a stable or missing reference

An unchanged daily OI input can leave max pain stable while spot and intraday volume move. Missing eligible OI or a different expiry can change availability. If Key Levels differs, first match underlying, expiration and OI date rather than comparing a current full-chain summary with one old expiry. For support capture the payout minimum, selected expiry, OI date, units and any missing-history message, not just the current spot difference.

Open interest is a dated position input

Open interest reports outstanding contracts as of its stated OI date. It is distinct from current-session contract volume, which counts executed activity in the admitted print set. A contract can trade repeatedly without producing the same change in open interest. Comparing volume with OI can help screen activity, but it does not identify how many trades opened positions or which participants hold them. Always retain the root, expiration, right and strike when matching records across dates.

A historical OI series contains stored eligible dates, not an automatically complete daily archive. Missing dates remain absent. OI Change compares compatible contracts alive at both relevant closes; a new listing or expired contract cannot be treated as an ordinary like-for-like row. Model calculations based on OI, including exposure and max pain, inherit that date and coverage. If a result appears unchanged during an active session, check whether its daily OI input has actually changed before treating the stable number as a failed live update.

Compare the minimum without inventing a causal story

The payout curve evaluates hypothetical settlement coordinates under its selected dated OI. Its minimum can be broad or close to another tested coordinate; read the returned reference rather than choosing an arbitrary point from a flat-looking section by eye. A nearby current spot is a comparison, not evidence that one caused the other. Changes in listings or eligible OI can move the minimum between stored dates without corresponding to one identifiable intraday execution.

Use Max Pain / Time to ask whether the reference differs across expirations or how one expiration changed over available OI dates. Those are two different axes; confirm which mode is active before describing the curve as a forecast through time. Match the same expiration and OI date in Key Levels, where max pain appears alongside independently calculated gamma references. A coincident gamma wall does not validate the payout model as a settlement prediction. Report the two calculations separately and retain their input dates so later readers can distinguish numerical agreement from an unsupported explanation about why price should move.