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 — 620 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)DE 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 ≈ 41.0% · 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
0.86
-0.31
550
0.0034
0.35
-0.32
-0.14
0.82
-0.37
560
0.0040
0.41
-0.38
-0.18
0.78
-0.42
570
0.0046
0.46
-0.43
-0.23
0.73
-0.46
580
0.0052
0.51
-0.47
-0.28
0.67
-0.50
590
0.0057
0.56
-0.51
-0.33
0.61
-0.53
600
0.0061
0.59
-0.54
-0.39
0.55
-0.54
610
0.0063
0.61
-0.55
-0.46
0.49
-0.55
620
0.0064
0.61
-0.55
-0.52
0.42
-0.53
630
0.0063
0.60
-0.54
-0.58
0.36
-0.51
640
0.0060
0.58
-0.52
-0.65
0.31
-0.48
650
0.0057
0.54
-0.48
-0.70
0.26
-0.43
660
0.0052
0.50
-0.44
-0.75
0.21
-0.39
670
0.0047
0.45
-0.40
-0.80
0.17
-0.34
680
0.0041
0.40
-0.35
-0.84
0.14
-0.30
690
0.0036
0.34
-0.30
-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 41 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.