Event risk before this expiration:CPI release Wed, Oct 14 — 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 — 550 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)ULTA open contracts per strike for Fri, Oct 16.
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 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 16
— call IV— put IVATM ≈ 37.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 16
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 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.83
-0.66
547.5
0.0114
0.15
-0.66
-0.17
0.81
-0.73
550
0.0128
0.16
-0.74
-0.19
0.77
-0.81
552.5
0.0142
0.18
-0.81
-0.23
0.74
-0.88
555
0.0155
0.19
-0.88
-0.26
0.66
-0.99
560
0.0178
0.22
-1.00
-0.34
0.61
-1.03
562.5
0.0187
0.23
-1.04
-0.39
0.56
-1.06
565
0.0194
0.23
-1.07
-0.44
0.52
-1.07
567.5
0.0197
0.24
-1.08
-0.49
0.47
-1.06
570
0.0197
0.24
-1.07
-0.54
0.37
-1.00
575
0.0187
0.23
-1.01
-0.63
0.28
-0.89
580
0.0167
0.20
-0.89
-0.72
0.21
-0.74
585
0.0141
0.17
-0.75
-0.79
0.15
-0.60
590
0.0114
0.14
-0.60
-0.85
0.11
-0.46
595
0.0088
0.11
-0.46
-0.90
0.08
-0.35
600
0.0067
0.09
-0.35
-0.93
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 51 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.