■ 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 — 293 — is the max pain price.
Open interest by strike · Wed, Jul 29
■ calls (up)■ puts (down)IWM open contracts per strike for Wed, Jul 29.
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 · Wed, Jul 29
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Wed, Jul 29
— call IV— put IVATM ≈ 30.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Wed, Jul 29
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 · Wed, Jul 29
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.92
-0.21
286
0.0279
0.02
-0.21
-0.09
0.89
-0.29
287
0.0351
0.03
-0.29
-0.11
0.85
-0.40
288
0.0433
0.04
-0.40
-0.15
0.81
-0.54
289
0.0522
0.04
-0.54
-0.19
0.76
-0.73
290
0.0614
0.05
-0.73
-0.24
0.69
-0.97
291
0.0702
0.05
-0.97
-0.31
0.62
-1.27
292
0.0779
0.06
-1.28
-0.38
0.54
-1.62
293
0.0835
0.06
-1.62
-0.46
0.46
-1.56
294
0.0860
0.06
-1.56
-0.54
0.37
-1.12
295
0.0845
0.06
-1.12
-0.63
0.28
-0.75
296
0.0784
0.05
-0.75
-0.72
0.20
-0.47
297
0.0677
0.04
-0.47
-0.80
0.14
-0.28
298
0.0540
0.04
-0.28
-0.86
0.09
-0.15
299
0.0396
0.03
-0.17
-0.92
0.05
-0.08
300
0.0269
0.02
-0.10
-0.95
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 57 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.