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 — 660 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)META 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; 6 strikes were in only one day’s snapshot (each keeps its largest strikes) and are left out. Biggest moves: 680 +2K · 350 +2K · 660 +2K · 645 +753
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 ≈ 45.6% · 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
0.89
-0.72
595
0.0061
0.13
-0.72
-0.12
0.85
-0.88
600
0.0074
0.15
-0.89
-0.15
0.81
-1.05
605
0.0087
0.18
-1.06
-0.19
0.76
-1.22
610
0.0100
0.20
-1.23
-0.24
0.71
-1.37
615
0.0111
0.23
-1.38
-0.29
0.65
-1.50
620
0.0120
0.24
-1.51
-0.35
0.59
-1.58
625
0.0126
0.26
-1.60
-0.41
0.52
-1.63
630
0.0129
0.26
-1.64
-0.48
0.46
-1.63
635
0.0128
0.26
-1.64
-0.54
0.40
-1.58
640
0.0124
0.26
-1.59
-0.61
0.34
-1.49
645
0.0117
0.24
-1.50
-0.67
0.28
-1.37
650
0.0108
0.23
-1.38
-0.72
0.26
-1.31
652.5
0.0103
0.21
-1.31
-0.74
0.24
-1.24
655
0.0098
0.20
-1.24
-0.77
0.20
-1.09
660
0.0086
0.18
-1.09
-0.81
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.