Event risk before this expiration:Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 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 — 285 — is the max pain price.
Open interest by strike · Wed, Mar 31
■ calls (up)■ puts (down)IWM open contracts per strike for Wed, Mar 31.
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: 285 +13 · 240 +10 · 280 +10 · 236 −7
Volume by strike · Wed, Mar 31
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Wed, Mar 31
— call IV— put IVATM ≈ 19.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Wed, Mar 31
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, Mar 31
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.74
-0.04
265
0.0080
0.59
-0.04
-0.26
0.73
-0.04
267
0.0083
0.61
-0.04
-0.28
0.72
-0.04
268
0.0085
0.62
-0.04
-0.29
0.71
-0.04
269
0.0087
0.63
-0.04
-0.30
0.70
-0.04
270
0.0088
0.64
-0.04
-0.30
0.66
-0.04
275
0.0097
0.67
-0.05
-0.35
0.61
-0.04
280
0.0104
0.70
-0.05
-0.40
0.56
-0.04
285
0.0110
0.72
-0.05
-0.46
0.50
-0.04
290
0.0114
0.73
-0.05
-0.52
0.45
-0.04
295
0.0115
0.72
-0.04
-0.58
0.39
-0.04
300
0.0114
0.70
-0.04
-0.65
0.33
-0.04
305
0.0110
0.67
-0.04
-0.71
0.28
-0.03
310
0.0103
0.62
-0.03
-0.77
0.23
-0.03
315
0.0095
0.57
-0.03
-0.82
0.19
-0.03
320
0.0085
0.50
-0.02
-0.87
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 51 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.