Event risk before this expiration:Jobs report Fri, Aug 7 · CPI release Wed, Aug 12 — 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 — 84 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)KO open contracts per strike for Fri, Aug 28.
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, Aug 28
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 28
— call IV— put IVATM ≈ 21.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 28
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, Aug 28
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.90
-0.02
81
0.0308
0.04
-0.02
-0.10
0.87
-0.02
82
0.0384
0.05
-0.02
-0.13
0.83
-0.02
83
0.0472
0.06
-0.02
-0.17
0.78
-0.03
84
0.0564
0.07
-0.03
-0.22
0.72
-0.03
85
0.0653
0.08
-0.03
-0.28
0.65
-0.03
86
0.0727
0.09
-0.03
-0.35
0.58
-0.04
87
0.0778
0.10
-0.04
-0.43
0.50
-0.04
88
0.0796
0.10
-0.04
-0.51
0.42
-0.04
89
0.0780
0.10
-0.04
-0.59
0.35
-0.03
90
0.0734
0.09
-0.03
-0.67
0.28
-0.03
91
0.0665
0.08
-0.03
-0.73
0.22
-0.03
92
0.0583
0.07
-0.03
-0.80
0.17
-0.02
93
0.0498
0.06
-0.03
-0.85
0.14
-0.02
94
0.0414
0.05
-0.02
-0.89
0.10
-0.02
95
0.0340
0.04
-0.02
-0.92
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 33 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.