■ 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 — 295 — is the max pain price.
Open interest by strike · Thu, Sep 17
■ calls (up)■ puts (down)IWM open contracts per strike for Thu, Sep 17.
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: 283 +865 · 282 +858 · 284 +608 · 286 +552
Volume by strike · Thu, Sep 17
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Thu, Sep 17
— call IV— put IVATM ≈ 17.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Thu, Sep 17
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 · Thu, Sep 17
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.85
-0.17
282
0.0349
0.08
-0.18
-0.20
0.82
-0.19
283
0.0405
0.09
-0.19
-0.23
0.79
-0.21
284
0.0464
0.10
-0.21
-0.27
0.74
-0.23
285
0.0526
0.12
-0.22
-0.32
0.69
-0.24
286
0.0584
0.12
-0.22
-0.36
0.64
-0.25
287
0.0635
0.13
-0.23
-0.42
0.57
-0.26
288
0.0675
0.14
-0.23
-0.48
0.51
-0.25
289
0.0695
0.14
-0.22
-0.54
0.43
-0.24
290
0.0692
0.14
-0.21
-0.60
0.37
-0.22
291
0.0664
0.14
-0.20
-0.66
0.30
-0.20
292
0.0615
0.13
-0.18
-0.72
0.24
-0.17
293
0.0550
0.12
-0.15
-0.78
0.19
-0.14
294
0.0476
0.10
-0.13
-0.83
0.14
-0.11
295
0.0397
0.09
-0.10
-0.87
0.10
-0.09
296
0.0320
0.07
-0.08
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 52 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.