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 — 52.5 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)CNQ 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 ≈ 35.8% · 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
0.86
-0.02
49.5
0.0384
0.03
-0.02
-0.14
0.84
-0.02
50
0.0426
0.04
-0.02
-0.15
0.80
-0.03
51
0.0517
0.04
-0.03
-0.20
0.74
-0.03
52
0.0611
0.05
-0.03
-0.25
0.71
-0.03
52.5
0.0656
0.05
-0.03
-0.28
0.68
-0.03
53
0.0697
0.06
-0.03
-0.32
0.61
-0.03
54
0.0761
0.06
-0.04
-0.39
0.53
-0.04
55
0.0791
0.06
-0.04
-0.47
0.45
-0.04
56
0.0784
0.06
-0.04
-0.55
0.38
-0.03
57
0.0745
0.06
-0.04
-0.62
0.34
-0.03
57.5
0.0716
0.06
-0.03
-0.66
0.21
-0.03
60
0.0531
0.04
-0.03
-0.80
0.17
-0.02
61
0.0456
0.04
-0.03
-0.83
0.09
-0.02
64
0.0275
0.03
-0.02
-0.92
0.07
-0.01
65
0.0231
0.02
-0.01
-0.93
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 23 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.