Event risk before this expiration:Jobs report Fri, Oct 2 · CPI release Wed, Oct 14 — 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 — 85 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)KO 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 ≈ 18.0% · 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
0.92
-0.01
81
0.0262
0.04
-0.01
-0.08
0.89
-0.01
82
0.0331
0.05
-0.01
-0.11
0.86
-0.02
83
0.0413
0.06
-0.02
-0.14
0.82
-0.02
84
0.0504
0.07
-0.02
-0.19
0.76
-0.02
85
0.0597
0.09
-0.02
-0.24
0.70
-0.03
86
0.0686
0.10
-0.03
-0.30
0.63
-0.03
87
0.0759
0.10
-0.03
-0.38
0.55
-0.03
88
0.0806
0.11
-0.03
-0.46
0.47
-0.03
89
0.0821
0.11
-0.03
-0.54
0.39
-0.03
90
0.0798
0.10
-0.03
-0.63
0.31
-0.02
91
0.0742
0.10
-0.03
-0.71
0.25
-0.02
92
0.0660
0.09
-0.02
-0.78
0.19
-0.02
93
0.0564
0.07
-0.02
-0.84
0.14
-0.01
94
0.0466
0.06
-0.02
-0.90
0.11
-0.01
95
0.0374
0.05
-0.01
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 25 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.