Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 — 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 — 650 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)META open contracts per strike for Fri, Nov 20.
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. Biggest moves: 620 +2K · 645 +745 · 1480 +549 · 550 −505
Volume by strike · Fri, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 39.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.76
-0.41
590
0.0046
0.52
-0.42
-0.24
0.73
-0.43
595
0.0048
0.54
-0.44
-0.27
0.71
-0.45
600
0.0051
0.57
-0.46
-0.29
0.66
-0.49
610
0.0055
0.61
-0.50
-0.35
0.63
-0.50
615
0.0057
0.63
-0.51
-0.38
0.60
-0.51
620
0.0058
0.64
-0.52
-0.41
0.57
-0.52
625
0.0059
0.65
-0.53
-0.44
0.54
-0.52
630
0.0060
0.66
-0.53
-0.47
0.51
-0.53
635
0.0060
0.66
-0.53
-0.50
0.48
-0.53
640
0.0060
0.66
-0.53
-0.53
0.45
-0.52
645
0.0060
0.65
-0.53
-0.56
0.42
-0.51
650
0.0059
0.65
-0.52
-0.59
0.39
-0.51
655
0.0058
0.64
-0.51
-0.61
0.36
-0.49
660
0.0057
0.62
-0.50
-0.64
0.31
-0.47
670
0.0054
0.59
-0.47
-0.70
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.