Event risk before this expiration:FOMC decision Wed, Oct 28 — 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 — 332.5 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)GOOGL open contracts per strike for Fri, Oct 30.
Open-interest change · 2026-10-23 → 2026-10-26
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; 2 strikes were in only one day’s snapshot (each keeps its largest strikes) and are left out. Biggest moves: 325 +4K · 335 +3K · 340 −2K · 400 +2K
Volume by strike · Fri, Oct 30
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 30
— call IV— put IVATM ≈ 72.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 30
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, Oct 30
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.81
-0.83
297.5
0.0112
0.09
-0.84
-0.19
0.78
-0.92
300
0.0122
0.10
-0.93
-0.22
0.71
-1.08
305
0.0141
0.11
-1.09
-0.29
0.67
-1.15
307.5
0.0149
0.12
-1.15
-0.33
0.63
-1.20
310
0.0155
0.13
-1.21
-0.37
0.59
-1.25
312.5
0.0160
0.13
-1.25
-0.41
0.55
-1.27
315
0.0163
0.13
-1.28
-0.45
0.51
-1.28
317.5
0.0164
0.13
-1.29
-0.49
0.47
-1.28
320
0.0164
0.13
-1.29
-0.53
0.43
-1.26
322.5
0.0162
0.13
-1.27
-0.57
0.39
-1.23
325
0.0158
0.13
-1.23
-0.61
0.35
-1.18
327.5
0.0153
0.12
-1.19
-0.65
0.32
-1.13
330
0.0146
0.12
-1.13
-0.69
0.28
-1.06
332.5
0.0139
0.11
-1.07
-0.72
0.25
-0.99
335
0.0130
0.11
-1.00
-0.75
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.