■ 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 — 292 — is the max pain price.
Open interest by strike · Thu, Jul 30
■ calls (up)■ puts (down)IWM open contracts per strike for Thu, Jul 30.
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 · Thu, Jul 30
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Thu, Jul 30
— call IV— put IVATM ≈ 27.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Thu, Jul 30
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 · Thu, Jul 30
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.86
-0.36
286
0.0312
0.05
-0.36
-0.14
0.83
-0.42
287
0.0362
0.06
-0.42
-0.17
0.80
-0.49
288
0.0415
0.06
-0.49
-0.20
0.76
-0.55
289
0.0470
0.07
-0.55
-0.24
0.71
-0.61
290
0.0524
0.07
-0.61
-0.29
0.66
-0.66
291
0.0576
0.08
-0.66
-0.34
0.60
-0.69
292
0.0620
0.08
-0.69
-0.40
0.54
-0.69
293
0.0655
0.09
-0.70
-0.46
0.47
-0.68
294
0.0676
0.09
-0.68
-0.53
0.40
-0.63
295
0.0678
0.08
-0.63
-0.60
0.33
-0.56
296
0.0658
0.08
-0.56
-0.67
0.26
-0.46
297
0.0611
0.07
-0.47
-0.74
0.20
-0.36
298
0.0539
0.06
-0.36
-0.81
0.14
-0.26
299
0.0448
0.05
-0.26
-0.86
0.10
-0.18
300
0.0352
0.04
-0.18
-0.91
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 34 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.