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 — 23 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)CCL 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 ≈ 47.2% · 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
0.99
-0.00
13
0.0054
0.00
-0.00
-0.01
0.95
-0.01
17
0.0251
0.01
-0.01
-0.05
0.93
-0.01
18
0.0391
0.01
-0.01
-0.07
0.88
-0.01
19
0.0603
0.01
-0.01
-0.12
0.81
-0.01
20
0.0866
0.02
-0.01
-0.20
0.70
-0.02
21
0.1112
0.02
-0.02
-0.30
0.58
-0.02
22
0.1269
0.03
-0.02
-0.43
0.45
-0.02
23
0.1291
0.03
-0.02
-0.56
0.33
-0.02
24
0.1181
0.02
-0.02
-0.68
0.24
-0.01
25
0.0990
0.02
-0.01
-0.77
0.17
-0.01
26
0.0779
0.02
-0.01
-0.85
0.12
-0.01
27
0.0593
0.01
-0.01
-0.90
0.08
-0.01
28
0.0444
0.01
-0.01
-0.94
0.06
-0.01
29
0.0332
0.01
-0.01
-0.96
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 14 strikes around the money — all 16 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.