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 — 372.5 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)PANW 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 ≈ 61.9% · 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
0.73
-0.82
362.5
0.0098
0.18
-0.82
-0.27
0.70
-0.85
365
0.0103
0.18
-0.86
-0.30
0.67
-0.88
367.5
0.0107
0.19
-0.89
-0.33
0.65
-0.91
370
0.0111
0.20
-0.92
-0.35
0.62
-0.93
372.5
0.0114
0.20
-0.94
-0.38
0.59
-0.95
375
0.0117
0.20
-0.95
-0.41
0.53
-0.97
380
0.0120
0.21
-0.97
-0.47
0.50
-0.97
382.5
0.0121
0.21
-0.97
-0.50
0.47
-0.96
385
0.0121
0.21
-0.97
-0.53
0.44
-0.95
387.5
0.0120
0.21
-0.96
-0.56
0.41
-0.94
390
0.0118
0.20
-0.94
-0.59
0.35
-0.89
395
0.0113
0.20
-0.90
-0.65
0.30
-0.83
400
0.0106
0.18
-0.83
-0.70
0.25
-0.76
405
0.0097
0.17
-0.76
-0.75
0.21
-0.68
410
0.0088
0.15
-0.68
-0.79
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 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.