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 — 350 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)PANW open contracts per strike for Fri, Nov 20.
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, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 62.7% · 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
0.85
-0.30
320
0.0033
0.25
-0.30
-0.15
0.81
-0.34
330
0.0038
0.29
-0.34
-0.19
0.76
-0.39
340
0.0044
0.33
-0.39
-0.24
0.71
-0.42
350
0.0049
0.36
-0.42
-0.29
0.70
-0.43
352.5
0.0050
0.37
-0.43
-0.30
0.66
-0.45
360
0.0053
0.39
-0.45
-0.34
0.60
-0.47
370
0.0056
0.41
-0.47
-0.40
0.55
-0.48
380
0.0058
0.42
-0.49
-0.46
0.49
-0.48
390
0.0059
0.42
-0.49
-0.51
0.43
-0.47
400
0.0058
0.41
-0.48
-0.57
0.38
-0.45
410
0.0056
0.40
-0.46
-0.63
0.33
-0.43
420
0.0054
0.38
-0.43
-0.68
0.28
-0.40
430
0.0050
0.35
-0.40
-0.73
0.23
-0.36
440
0.0046
0.32
-0.37
-0.77
0.20
-0.33
450
0.0042
0.29
-0.33
-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 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.