Event risk before this expiration: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 — 30 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)CMG 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 ≈ 37.1% · 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
0.90
-0.01
28.5
0.0589
0.01
-0.01
-0.10
0.86
-0.01
29
0.0734
0.02
-0.01
-0.14
0.82
-0.02
29.5
0.0886
0.02
-0.02
-0.18
0.77
-0.02
30
0.1035
0.02
-0.02
-0.23
0.72
-0.02
30.5
0.1171
0.03
-0.02
-0.29
0.65
-0.03
31
0.1282
0.03
-0.03
-0.35
0.59
-0.03
31.5
0.1358
0.03
-0.03
-0.42
0.52
-0.03
32
0.1393
0.03
-0.03
-0.49
0.45
-0.03
32.5
0.1384
0.03
-0.03
-0.56
0.38
-0.03
33
0.1335
0.03
-0.03
-0.63
0.32
-0.02
33.5
0.1252
0.03
-0.03
-0.69
0.26
-0.02
34
0.1144
0.03
-0.02
-0.75
0.21
-0.02
34.5
0.1017
0.02
-0.02
-0.80
0.17
-0.02
35
0.0882
0.02
-0.02
-0.84
0.13
-0.01
35.5
0.0747
0.02
-0.01
-0.88
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 39 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.