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 — 37 — is the max pain price.
Open interest by strike · Fri, Oct 9
■ calls (up)■ puts (down)NKE 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 IVQuoted 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
0.95
-0.01
29
0.0218
0.01
-0.01
-0.05
0.92
-0.01
30
0.0321
0.01
-0.01
-0.08
0.88
-0.02
31
0.0448
0.02
-0.02
-0.12
0.82
-0.03
32
0.0587
0.02
-0.03
-0.18
0.75
-0.03
33
0.0718
0.03
-0.03
-0.25
0.67
-0.04
34
0.0823
0.03
-0.04
-0.33
0.58
-0.04
35
0.0890
0.03
-0.04
-0.42
0.49
-0.04
36
0.0909
0.03
-0.04
-0.51
0.41
-0.04
37
0.0882
0.03
-0.04
-0.60
0.33
-0.04
38
0.0816
0.03
-0.04
-0.68
0.26
-0.03
39
0.0725
0.03
-0.04
-0.75
0.20
-0.03
40
0.0621
0.02
-0.03
-0.81
0.15
-0.03
41
0.0518
0.02
-0.03
-0.86
0.12
-0.02
42
0.0424
0.02
-0.02
-0.90
0.09
-0.02
43
0.0344
0.01
-0.02
-0.92
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 25 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.