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 — 555 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)MA 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 ≈ 23.1% · 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
0.82
-0.20
540
0.0071
0.37
-0.20
-0.18
0.79
-0.22
545
0.0081
0.42
-0.23
-0.21
0.75
-0.24
550
0.0091
0.46
-0.25
-0.26
0.70
-0.26
555
0.0100
0.50
-0.27
-0.30
0.65
-0.28
560
0.0107
0.53
-0.28
-0.36
0.59
-0.29
565
0.0113
0.56
-0.29
-0.41
0.54
-0.29
570
0.0117
0.57
-0.30
-0.47
0.48
-0.29
575
0.0118
0.57
-0.30
-0.53
0.42
-0.29
580
0.0116
0.56
-0.29
-0.59
0.36
-0.28
585
0.0111
0.54
-0.28
-0.65
0.31
-0.26
590
0.0104
0.51
-0.27
-0.70
0.26
-0.24
595
0.0096
0.47
-0.25
-0.75
0.22
-0.22
600
0.0087
0.43
-0.23
-0.79
0.19
-0.20
605
0.0077
0.39
-0.20
-0.83
0.15
-0.18
610
0.0068
0.35
-0.18
-0.86
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 50 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.