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 — 75 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)WMB 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 ≈ 28.8% · 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
65
0.0276
0.03
-0.03
-0.10
0.88
-0.02
66
0.0335
0.04
-0.03
-0.12
0.85
-0.03
67
0.0409
0.04
-0.03
-0.15
0.82
-0.03
68
0.0499
0.05
-0.03
-0.18
0.77
-0.03
69
0.0596
0.06
-0.04
-0.24
0.70
-0.04
70
0.0684
0.06
-0.04
-0.30
0.63
-0.04
71
0.0749
0.07
-0.04
-0.37
0.55
-0.04
72
0.0784
0.07
-0.04
-0.45
0.47
-0.04
73
0.0786
0.07
-0.05
-0.53
0.40
-0.04
74
0.0758
0.07
-0.04
-0.61
0.33
-0.04
75
0.0704
0.07
-0.04
-0.68
0.27
-0.04
76
0.0633
0.06
-0.04
-0.74
0.21
-0.03
77
0.0554
0.05
-0.03
-0.80
0.17
-0.03
78
0.0474
0.05
-0.03
-0.84
0.14
-0.03
79
0.0399
0.04
-0.03
-0.88
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.