Event risk before this expiration:CPI release Wed, Oct 14 · 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 — 365 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)V 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 ≈ 23.1% · 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
0.88
-0.08
355
0.0061
0.26
-0.09
-0.12
0.85
-0.09
360
0.0074
0.30
-0.10
-0.16
0.81
-0.11
365
0.0087
0.35
-0.11
-0.20
0.77
-0.12
370
0.0101
0.39
-0.12
-0.24
0.71
-0.13
375
0.0113
0.43
-0.13
-0.29
0.65
-0.14
380
0.0124
0.47
-0.14
-0.35
0.59
-0.15
385
0.0133
0.49
-0.15
-0.42
0.52
-0.15
390
0.0138
0.51
-0.15
-0.48
0.45
-0.15
395
0.0138
0.50
-0.15
-0.55
0.39
-0.14
400
0.0134
0.49
-0.14
-0.62
0.32
-0.13
405
0.0127
0.46
-0.13
-0.69
0.26
-0.12
410
0.0116
0.42
-0.12
-0.75
0.21
-0.10
415
0.0103
0.37
-0.10
-0.80
0.16
-0.09
420
0.0088
0.32
-0.09
-0.85
0.12
-0.07
425
0.0074
0.27
-0.08
-0.89
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 42 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.