■ 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 — 79 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)PDD open contracts per strike for Fri, Oct 23.
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, Oct 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 32.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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, Oct 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.96
-0.02
73
0.0151
0.01
-0.02
-0.04
0.95
-0.02
74
0.0206
0.01
-0.03
-0.05
0.93
-0.03
75
0.0282
0.02
-0.03
-0.07
0.90
-0.04
76
0.0381
0.02
-0.04
-0.10
0.86
-0.05
77
0.0501
0.03
-0.05
-0.14
0.81
-0.07
78
0.0634
0.04
-0.07
-0.20
0.74
-0.08
79
0.0764
0.04
-0.08
-0.27
0.66
-0.09
80
0.0874
0.05
-0.09
-0.35
0.56
-0.09
81
0.0942
0.05
-0.09
-0.44
0.47
-0.09
82
0.0957
0.05
-0.10
-0.54
0.38
-0.09
83
0.0915
0.05
-0.09
-0.63
0.29
-0.08
84
0.0827
0.04
-0.08
-0.72
0.22
-0.07
85
0.0707
0.04
-0.07
-0.79
0.16
-0.06
86
0.0575
0.03
-0.06
-0.85
0.12
-0.04
87
0.0453
0.03
-0.04
-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 31 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.