Event risk before this expiration:Jobs report Fri, Aug 7 — 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 — 860 — is the max pain price.
Open interest by strike · Fri, Aug 7
■ calls (up)■ puts (down)CAT open contracts per strike for Fri, Aug 7.
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 7
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 7
— call IV— put IVATM ≈ 49.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 7
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 7
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.95
-0.54
820
0.0045
0.05
-0.55
-0.05
0.92
-0.83
825
0.0061
0.07
-0.84
-0.08
0.89
-1.26
830
0.0081
0.09
-1.27
-0.11
0.84
-1.89
835
0.0103
0.11
-1.90
-0.16
0.79
-2.77
840
0.0126
0.13
-2.78
-0.21
0.64
-5.54
850
0.0166
0.17
-5.54
-0.36
0.56
-7.14
855
0.0177
0.18
-7.14
-0.44
0.47
-7.28
860
0.0178
0.18
-7.29
-0.53
0.38
-5.78
865
0.0171
0.17
-5.78
-0.62
0.30
-4.17
870
0.0155
0.16
-4.18
-0.70
0.23
-2.96
875
0.0135
0.14
-2.98
-0.77
0.17
-2.09
880
0.0112
0.12
-2.12
-0.83
0.13
-1.47
885
0.0090
0.10
-1.53
-0.88
0.05
-0.56
900
0.0043
0.05
-0.70
-0.95
0.04
-0.42
905
0.0034
0.04
-0.59
-0.97
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.