Event risk before this expiration:Jobs report Fri, Oct 2 — 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 — 585 — is the max pain price.
Open interest by strike · Fri, Oct 9
■ calls (up)■ puts (down)MA open contracts per strike for Fri, Oct 9.
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 9
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 9
— call IV— put IVATM ≈ 19.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 9
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 9
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.90
-0.12
530
0.0059
0.25
-0.13
-0.11
0.87
-0.15
535
0.0073
0.29
-0.15
-0.14
0.83
-0.17
540
0.0088
0.34
-0.18
-0.18
0.79
-0.20
545
0.0104
0.39
-0.20
-0.23
0.73
-0.22
550
0.0119
0.44
-0.22
-0.28
0.67
-0.24
555
0.0133
0.49
-0.24
-0.34
0.60
-0.25
560
0.0144
0.52
-0.25
-0.41
0.53
-0.26
565
0.0151
0.54
-0.25
-0.48
0.45
-0.25
570
0.0152
0.54
-0.25
-0.56
0.38
-0.24
575
0.0147
0.52
-0.23
-0.63
0.31
-0.22
580
0.0137
0.48
-0.21
-0.70
0.24
-0.19
585
0.0122
0.43
-0.19
-0.77
0.19
-0.17
590
0.0105
0.38
-0.17
-0.82
0.15
-0.14
595
0.0088
0.32
-0.14
-0.86
0.11
-0.12
600
0.0072
0.27
-0.13
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 34 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.