■ 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 — 337.5 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)GOOGL open contracts per strike for Fri, Sep 18.
Open-interest change · 2026-09-15 → 2026-09-16
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: 340 +8K · 362.5 −4K · 400 −3K · 455 +3K
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 ≈ 33.6% · 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
0.97
-0.11
320
0.0049
0.02
-0.11
-0.03
0.96
-0.16
325
0.0083
0.02
-0.16
-0.04
0.92
-0.29
330
0.0157
0.04
-0.29
-0.08
0.82
-0.58
335
0.0291
0.07
-0.58
-0.18
0.74
-0.76
337.5
0.0366
0.08
-0.76
-0.26
0.64
-0.91
340
0.0428
0.10
-0.92
-0.36
0.53
-0.99
342.5
0.0460
0.10
-1.00
-0.47
0.42
-0.96
345
0.0453
0.10
-0.97
-0.59
0.22
-0.64
350
0.0341
0.07
-0.65
-0.79
0.14
-0.45
352.5
0.0263
0.06
-0.45
-0.86
0.09
-0.30
355
0.0190
0.04
-0.29
-0.92
0.04
-0.12
360
0.0089
0.02
-0.12
-0.97
0.02
-0.06
365
0.0043
0.01
-0.07
-0.99
0.01
-0.04
370
0.0024
0.01
-0.05
-0.99
0.01
-0.03
375
0.0016
0.01
-0.05
-1.00
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.