Event risk before this expiration:Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ 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 — 280 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)IWM open contracts per strike for Fri, Nov 20.
Open-interest change · 2026-10-28 → 2026-10-29
Net contracts opened (up, green) or closed (down, red) per strike since the previous snapshot: where the walls are building and where they’re unwinding. Only strikes observed on both days are compared. Biggest moves: 268 +44K · 266 −32K · 260 −15K · 267 +11K
Volume by strike · Fri, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 18.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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 · Fri, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.74
-0.10
276
0.0221
0.23
-0.11
-0.26
0.72
-0.10
277
0.0233
0.24
-0.11
-0.28
0.70
-0.11
278
0.0245
0.24
-0.11
-0.30
0.68
-0.11
279
0.0257
0.25
-0.12
-0.33
0.65
-0.11
280
0.0268
0.26
-0.12
-0.35
0.63
-0.11
281
0.0279
0.27
-0.12
-0.38
0.57
-0.12
283
0.0298
0.28
-0.12
-0.44
0.54
-0.12
284
0.0306
0.28
-0.12
-0.47
0.51
-0.11
285
0.0311
0.28
-0.12
-0.50
0.48
-0.11
286
0.0315
0.28
-0.12
-0.53
0.45
-0.11
287
0.0317
0.28
-0.11
-0.56
0.41
-0.11
288
0.0316
0.27
-0.11
-0.60
0.35
-0.10
290
0.0307
0.26
-0.10
-0.66
0.29
-0.09
292
0.0288
0.24
-0.09
-0.73
0.26
-0.09
293
0.0276
0.23
-0.09
-0.76
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.