Event risk before this expiration:Jobs report Fri, Oct 2 · 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 — 40 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)COGT 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 ≈ 60.5% · 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
0.94
-0.01
20
0.0119
0.02
-0.01
-0.07
0.85
-0.02
25
0.0268
0.03
-0.02
-0.16
0.75
-0.02
28
0.0401
0.04
-0.02
-0.27
0.70
-0.02
29
0.0445
0.05
-0.02
-0.31
0.66
-0.02
30
0.0483
0.05
-0.02
-0.36
0.55
-0.02
32
0.0527
0.05
-0.03
-0.47
0.50
-0.02
33
0.0530
0.05
-0.03
-0.52
0.45
-0.02
34
0.0522
0.05
-0.03
-0.57
0.41
-0.02
35
0.0505
0.05
-0.03
-0.61
0.37
-0.02
36
0.0481
0.05
-0.03
-0.66
0.33
-0.02
37
0.0455
0.05
-0.02
-0.69
0.30
-0.02
38
0.0427
0.05
-0.02
-0.73
0.27
-0.02
39
0.0399
0.04
-0.02
-0.76
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 13 strikes around the money — all 21 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.