■ 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 — 286 — is the max pain price.
Open interest by strike · Wed, Sep 23
■ calls (up)■ puts (down)IWM open contracts per strike for Wed, Sep 23.
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, Sep 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Wed, Sep 23
— call IV— put IVATM ≈ 16.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Wed, Sep 23
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, Sep 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.75
-0.16
282.5
0.0355
0.17
-0.14
-0.27
0.74
-0.16
283
0.0367
0.17
-0.14
-0.28
0.70
-0.16
284
0.0390
0.18
-0.15
-0.32
0.67
-0.16
285
0.0411
0.19
-0.15
-0.35
0.63
-0.16
286
0.0430
0.20
-0.15
-0.39
0.58
-0.16
287
0.0446
0.20
-0.16
-0.43
0.54
-0.16
288
0.0458
0.21
-0.16
-0.47
0.49
-0.15
289
0.0465
0.21
-0.15
-0.52
0.45
-0.15
290
0.0466
0.21
-0.15
-0.56
0.40
-0.14
291
0.0462
0.20
-0.14
-0.61
0.35
-0.13
292
0.0450
0.20
-0.14
-0.66
0.31
-0.12
293
0.0431
0.18
-0.13
-0.71
0.26
-0.11
294
0.0405
0.17
-0.12
-0.76
0.22
-0.10
295
0.0374
0.16
-0.10
-0.80
0.18
-0.09
296
0.0338
0.14
-0.09
-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 49 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.