■ 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 — 282 — is the max pain price.
Open interest by strike · Tue, Sep 22
■ calls (up)■ puts (down)IWM open contracts per strike for Tue, Sep 22.
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 · Tue, Sep 22
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Tue, Sep 22
— call IV— put IVATM ≈ 16.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Tue, Sep 22
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 · Tue, Sep 22
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.77
-0.16
282.5
0.0370
0.15
-0.15
-0.26
0.75
-0.17
283
0.0384
0.16
-0.15
-0.28
0.71
-0.17
284
0.0412
0.17
-0.15
-0.31
0.68
-0.17
285
0.0438
0.18
-0.16
-0.34
0.64
-0.17
286
0.0460
0.18
-0.16
-0.38
0.59
-0.17
287
0.0479
0.19
-0.16
-0.42
0.54
-0.17
288
0.0492
0.20
-0.16
-0.47
0.49
-0.16
289
0.0499
0.20
-0.16
-0.52
0.44
-0.15
290
0.0498
0.20
-0.15
-0.57
0.39
-0.14
291
0.0490
0.19
-0.15
-0.62
0.34
-0.13
292
0.0474
0.18
-0.14
-0.67
0.29
-0.12
293
0.0449
0.17
-0.13
-0.72
0.25
-0.11
294
0.0418
0.16
-0.12
-0.77
0.20
-0.10
295
0.0380
0.14
-0.10
-0.82
0.17
-0.08
296
0.0338
0.13
-0.09
-0.86
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 50 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 — nearest expiry vs price
— max pain (nearest expiry)- - delayed closeOne point per snapshot day since 2026-07-28; unobserved days are gaps, not guesses.
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.