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 — 82 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)PDD 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 ≈ 31.2% · 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
0.93
-0.03
73
0.0217
0.02
-0.03
-0.07
0.91
-0.03
74
0.0266
0.03
-0.03
-0.09
0.88
-0.04
75
0.0328
0.03
-0.04
-0.12
0.85
-0.04
76
0.0400
0.04
-0.04
-0.15
0.81
-0.05
77
0.0479
0.05
-0.05
-0.19
0.76
-0.05
78
0.0558
0.05
-0.06
-0.24
0.70
-0.06
79
0.0629
0.06
-0.06
-0.31
0.63
-0.07
80
0.0683
0.07
-0.07
-0.37
0.56
-0.07
81
0.0716
0.07
-0.07
-0.45
0.49
-0.07
82
0.0726
0.07
-0.07
-0.52
0.42
-0.07
83
0.0712
0.07
-0.07
-0.59
0.35
-0.06
84
0.0678
0.06
-0.06
-0.66
0.28
-0.06
85
0.0625
0.06
-0.06
-0.72
0.23
-0.05
86
0.0558
0.05
-0.05
-0.78
0.18
-0.04
87
0.0482
0.04
-0.04
-0.83
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 28 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.