Event risk before this expiration:CPI release Wed, Oct 14 · FOMC decision Wed, Oct 28 — 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 — 565 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)ULTA open contracts per strike for Fri, Oct 30.
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, Oct 30
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 30
— call IV— put IVATM ≈ 31.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 30
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, Oct 30
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.83
-0.30
530
0.0058
0.32
-0.30
-0.17
0.80
-0.32
535
0.0065
0.35
-0.33
-0.20
0.77
-0.35
540
0.0073
0.39
-0.36
-0.23
0.73
-0.38
545
0.0080
0.42
-0.38
-0.27
0.69
-0.40
550
0.0086
0.45
-0.40
-0.31
0.65
-0.42
555
0.0092
0.47
-0.42
-0.36
0.60
-0.43
560
0.0096
0.49
-0.43
-0.40
0.55
-0.44
565
0.0099
0.50
-0.44
-0.45
0.50
-0.44
570
0.0101
0.50
-0.44
-0.50
0.45
-0.43
575
0.0100
0.50
-0.44
-0.55
0.40
-0.42
580
0.0098
0.49
-0.43
-0.60
0.35
-0.41
585
0.0094
0.47
-0.41
-0.65
0.31
-0.39
590
0.0089
0.45
-0.39
-0.69
0.27
-0.37
595
0.0083
0.42
-0.37
-0.73
0.23
-0.34
600
0.0076
0.39
-0.34
-0.77
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 45 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.