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 — 605 — is the max pain price.
Open interest by strike · Fri, Aug 14
■ calls (up)■ puts (down)DE open contracts per strike for Fri, Aug 14.
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 14
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 14
— call IV— put IVATM ≈ 34.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 14
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 14
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.88
-0.38
575
0.0059
0.20
-0.39
-0.12
0.85
-0.44
580
0.0070
0.23
-0.45
-0.15
0.77
-0.56
590
0.0092
0.29
-0.57
-0.23
0.72
-0.62
595
0.0103
0.33
-0.63
-0.28
0.67
-0.67
600
0.0112
0.35
-0.67
-0.34
0.61
-0.70
605
0.0119
0.37
-0.71
-0.40
0.55
-0.72
610
0.0123
0.38
-0.73
-0.46
0.49
-0.72
615
0.0125
0.38
-0.73
-0.52
0.46
-0.72
617.5
0.0124
0.38
-0.73
-0.55
0.42
-0.71
620
0.0123
0.38
-0.72
-0.58
0.31
-0.64
630
0.0110
0.34
-0.64
-0.70
0.26
-0.58
635
0.0101
0.31
-0.59
-0.75
0.22
-0.53
640
0.0091
0.28
-0.53
-0.79
0.18
-0.46
645
0.0080
0.25
-0.47
-0.83
0.16
-0.43
647.5
0.0074
0.24
-0.44
-0.85
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 58 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.