■ 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 — 278 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)IWM open contracts per strike for Fri, Oct 30.
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; 2 strikes were in only one day’s snapshot (each keeps its largest strikes) and are left out. Biggest moves: 288 +21K · 283 +16K · 287 +13K · 284 +8K
Volume by strike · Fri, Oct 30
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 30
— call IV— put IVATM ≈ 19.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 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 · Fri, Oct 30
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.96
-0.05
278
0.0220
0.01
-0.05
-0.04
0.94
-0.08
279
0.0336
0.02
-0.08
-0.06
0.91
-0.14
280
0.0499
0.03
-0.14
-0.09
0.85
-0.24
281
0.0710
0.04
-0.24
-0.15
0.78
-0.40
282
0.0952
0.04
-0.40
-0.22
0.73
-0.51
282.5
0.1072
0.05
-0.51
-0.27
0.68
-0.64
283
0.1183
0.05
-0.64
-0.33
0.55
-0.99
284
0.1341
0.06
-0.99
-0.45
0.41
-0.84
285
0.1364
0.06
-0.85
-0.59
0.28
-0.47
286
0.1214
0.05
-0.48
-0.73
0.17
-0.25
287
0.0926
0.04
-0.27
-0.84
0.13
-0.18
287.5
0.0770
0.03
-0.21
-0.89
0.10
-0.13
288
0.0626
0.03
-0.17
-0.92
0.06
-0.07
289
0.0400
0.02
-0.12
-0.96
0.04
-0.04
290
0.0254
0.01
-0.10
-0.98
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.