Event risk before this expiration:Jobs report Fri, Oct 2 · 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 — 40 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)LVS open contracts per strike for Fri, Oct 23.
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 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 38.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.91
-0.01
33
0.0324
0.02
-0.01
-0.09
0.88
-0.02
34
0.0423
0.02
-0.02
-0.13
0.83
-0.02
35
0.0541
0.03
-0.02
-0.17
0.77
-0.02
36
0.0668
0.03
-0.03
-0.23
0.70
-0.03
37
0.0792
0.04
-0.03
-0.31
0.61
-0.03
38
0.0894
0.04
-0.03
-0.39
0.52
-0.03
39
0.0950
0.04
-0.03
-0.49
0.43
-0.03
40
0.0945
0.04
-0.03
-0.58
0.34
-0.03
41
0.0883
0.04
-0.03
-0.67
0.26
-0.02
42
0.0781
0.04
-0.03
-0.75
0.20
-0.02
43
0.0662
0.03
-0.02
-0.82
0.15
-0.02
44
0.0543
0.03
-0.02
-0.87
0.11
-0.01
45
0.0433
0.02
-0.01
-0.91
0.08
-0.01
46
0.0339
0.02
-0.01
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 14 strikes around the money — all 18 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.