■ put-side pain■ call-side painTotal payout option writers would owe at each settle price (both sides, all open interest, ×100 shares) — low settles hurt put writers, high settles hurt call writers. The minimum — 291 — is the max pain price.
Open interest by strike · Mon, Aug 3
■ calls (up)■ puts (down)IWM open contracts per strike for Mon, Aug 3.
Open-interest change — building vs unwinding
Needs two observed snapshot days for this expiration — the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Mon, Aug 3
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Mon, Aug 3
— call IV— put IVATM ≈ 21.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Mon, Aug 3
Net dealer gamma per strike, in dollars per 1% move, assuming the standard convention (dealers long calls, short puts) — an assumption, not an observation. Above the amber flip level hedging tends to dampen moves; below it, to amplify them.
Greeks by strike · Mon, Aug 3
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.78
-0.23
287
0.0331
0.11
-0.23
-0.23
0.76
-0.23
287.5
0.0347
0.12
-0.23
-0.24
0.74
-0.24
288
0.0362
0.12
-0.24
-0.26
0.71
-0.25
289
0.0394
0.13
-0.25
-0.29
0.67
-0.26
290
0.0424
0.14
-0.26
-0.33
0.63
-0.27
291
0.0453
0.14
-0.27
-0.37
0.58
-0.27
292
0.0479
0.15
-0.27
-0.41
0.54
-0.27
293
0.0500
0.15
-0.27
-0.46
0.49
-0.27
294
0.0516
0.15
-0.27
-0.52
0.43
-0.26
295
0.0523
0.15
-0.26
-0.57
0.38
-0.24
296
0.0520
0.14
-0.24
-0.62
0.32
-0.22
297
0.0506
0.14
-0.22
-0.68
0.27
-0.19
298
0.0479
0.13
-0.20
-0.73
0.22
-0.17
299
0.0439
0.11
-0.17
-0.79
0.17
-0.14
300
0.0390
0.10
-0.14
-0.84
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 35 are in the CSV. Δ per $1 of underlying · Θ per day · vega per IV point.
Stacked — layer the expirations
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.
Max pain history
History starts accruing now: first snapshot taken 2026-07-28. We chart only days we actually observed — check back as the record builds. The measured hit-rate across all tickers lives on the accuracy ledger.
Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.
Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.