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 — 77 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)AIG open contracts per strike for Fri, Oct 30.
Open-interest change: building vs unwinding
Needs two observed snapshot days for this expiration; the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
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 ≈ 23.5% · 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
0.95
-0.02
76
0.0218
0.01
-0.03
-0.05
0.94
-0.03
77
0.0291
0.01
-0.03
-0.06
0.92
-0.03
78
0.0394
0.02
-0.04
-0.08
0.89
-0.04
79
0.0542
0.02
-0.04
-0.11
0.84
-0.05
80
0.0750
0.03
-0.05
-0.16
0.77
-0.06
81
0.1027
0.04
-0.06
-0.23
0.66
-0.06
82
0.1330
0.04
-0.06
-0.34
0.52
-0.07
83
0.1506
0.05
-0.07
-0.48
0.38
-0.07
84
0.1411
0.05
-0.07
-0.63
0.26
-0.06
85
0.1141
0.04
-0.06
-0.75
0.18
-0.05
86
0.0862
0.03
-0.05
-0.82
0.13
-0.04
87
0.0642
0.03
-0.04
-0.88
0.10
-0.04
88
0.0480
0.02
-0.04
-0.91
0.07
-0.03
89
0.0363
0.02
-0.03
-0.93
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 14 strikes around the money — all 24 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 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.