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 — 950 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)COST 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 ≈ 22.8% · 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
0.72
-0.40
915
0.0061
0.80
-0.41
-0.28
0.69
-0.42
920
0.0065
0.84
-0.43
-0.32
0.66
-0.44
925
0.0068
0.88
-0.45
-0.35
0.62
-0.45
930
0.0070
0.90
-0.46
-0.39
0.58
-0.46
935
0.0072
0.92
-0.47
-0.42
0.55
-0.47
940
0.0073
0.94
-0.48
-0.46
0.51
-0.47
945
0.0073
0.94
-0.48
-0.50
0.47
-0.47
950
0.0073
0.94
-0.48
-0.53
0.44
-0.47
955
0.0073
0.93
-0.48
-0.57
0.40
-0.46
960
0.0071
0.92
-0.47
-0.61
0.34
-0.43
970
0.0067
0.87
-0.45
-0.68
0.31
-0.42
975
0.0064
0.83
-0.43
-0.71
0.22
-0.36
990
0.0054
0.71
-0.37
-0.79
0.20
-0.34
995
0.0050
0.67
-0.35
-0.82
0.18
-0.31
1000
0.0047
0.63
-0.33
-0.84
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.