■ 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 — 300 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)AAPL open contracts per strike for Fri, Sep 18.
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: 330 +6K · 320 −4K · 310 +3K · 322.5 +2K
Volume by strike · Fri, Sep 18
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 18
— call IV— put IVATM ≈ 24.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 18
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, Sep 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.92
-0.13
315
0.0115
0.07
-0.13
-0.08
0.89
-0.16
317.5
0.0147
0.09
-0.16
-0.11
0.86
-0.19
320
0.0186
0.10
-0.19
-0.14
0.81
-0.23
322.5
0.0230
0.13
-0.23
-0.19
0.75
-0.26
325
0.0276
0.15
-0.27
-0.25
0.68
-0.29
327.5
0.0318
0.17
-0.30
-0.32
0.60
-0.32
330
0.0348
0.18
-0.32
-0.41
0.42
-0.32
335
0.0356
0.18
-0.32
-0.59
0.33
-0.29
337.5
0.0331
0.17
-0.29
-0.68
0.26
-0.26
340
0.0293
0.15
-0.26
-0.75
0.14
-0.18
345
0.0200
0.10
-0.18
-0.87
0.07
-0.11
350
0.0121
0.07
-0.11
-0.94
0.04
-0.07
355
0.0070
0.04
-0.06
-0.97
0.02
-0.04
360
0.0042
0.03
-0.04
-0.98
0.01
-0.03
365
0.0026
0.02
-0.02
-0.99
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.