■ 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 — 297 — is the max pain price.
Open interest by strike · Wed, Sep 16
■ calls (up)■ puts (down)IWM open contracts per strike for Wed, Sep 16.
Open-interest change · 2026-09-10 → 2026-09-11
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. Biggest moves: 266 +3K · 300 +2K · 272 +2K · 301 +823
Volume by strike · Wed, Sep 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Wed, Sep 16
— call IV— put IVATM ≈ 15.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Wed, Sep 16
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 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.89
-0.14
282
0.0330
0.07
-0.17
-0.17
0.86
-0.17
283
0.0397
0.07
-0.19
-0.21
0.82
-0.19
284
0.0473
0.09
-0.20
-0.25
0.78
-0.21
285
0.0558
0.10
-0.21
-0.29
0.72
-0.23
286
0.0644
0.11
-0.23
-0.35
0.66
-0.25
287
0.0726
0.12
-0.23
-0.41
0.59
-0.26
288
0.0793
0.13
-0.23
-0.48
0.51
-0.26
289
0.0830
0.13
-0.22
-0.55
0.43
-0.24
290
0.0824
0.13
-0.21
-0.63
0.35
-0.22
291
0.0776
0.12
-0.19
-0.70
0.27
-0.19
292
0.0696
0.11
-0.16
-0.76
0.21
-0.16
293
0.0597
0.10
-0.14
-0.82
0.15
-0.12
294
0.0489
0.08
-0.11
-0.86
0.11
-0.09
295
0.0383
0.06
-0.08
-0.90
0.07
-0.07
296
0.0288
0.05
-0.06
-0.93
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 57 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.