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 — 30 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)VKTX 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 ≈ 67.5% · 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
0.89
-0.02
25
0.0581
0.01
-0.02
-0.11
0.86
-0.03
25.5
0.0707
0.01
-0.03
-0.14
0.81
-0.03
26
0.0839
0.01
-0.03
-0.19
0.77
-0.03
26.5
0.0967
0.02
-0.04
-0.23
0.71
-0.04
27
0.1080
0.02
-0.04
-0.29
0.66
-0.04
27.5
0.1167
0.02
-0.04
-0.35
0.59
-0.04
28
0.1222
0.02
-0.04
-0.41
0.53
-0.05
28.5
0.1240
0.02
-0.05
-0.47
0.47
-0.05
29
0.1226
0.02
-0.05
-0.53
0.41
-0.05
29.5
0.1182
0.02
-0.05
-0.59
0.36
-0.04
30
0.1118
0.02
-0.04
-0.64
0.31
-0.04
30.5
0.1039
0.02
-0.04
-0.69
0.27
-0.04
31
0.0954
0.02
-0.04
-0.73
0.23
-0.04
31.5
0.0867
0.02
-0.04
-0.77
0.20
-0.04
32
0.0782
0.02
-0.04
-0.80
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 42 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.