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 — 24 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)CCL open contracts per strike for Fri, Oct 16.
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 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 16
— call IV— put IVATM ≈ 49.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 16
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 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.96
-0.01
17
0.0228
0.01
-0.01
-0.04
0.94
-0.01
18
0.0368
0.01
-0.01
-0.06
0.90
-0.01
19
0.0594
0.01
-0.01
-0.11
0.82
-0.02
20
0.0891
0.01
-0.02
-0.18
0.71
-0.02
21
0.1174
0.02
-0.02
-0.29
0.64
-0.02
21.5
0.1281
0.02
-0.02
-0.36
0.58
-0.02
22
0.1354
0.02
-0.02
-0.43
0.51
-0.02
22.5
0.1385
0.02
-0.02
-0.50
0.44
-0.02
23
0.1374
0.02
-0.02
-0.56
0.38
-0.02
23.5
0.1322
0.02
-0.02
-0.63
0.32
-0.02
24
0.1239
0.02
-0.02
-0.69
0.26
-0.02
24.5
0.1131
0.02
-0.02
-0.75
0.21
-0.02
25
0.1010
0.02
-0.02
-0.79
0.17
-0.01
25.5
0.0885
0.01
-0.02
-0.83
0.14
-0.01
26
0.0764
0.01
-0.01
-0.87
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.