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 — 22 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)MOS 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 ≈ 45.0% · 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
1.00
—
13
0.0002
—
—
0.00
1.00
—
14
0.0009
—
0.00
0.00
1.00
0.00
15
0.0038
0.00
-0.00
-0.00
0.99
-0.00
16
0.0165
0.00
-0.00
-0.01
0.96
-0.01
17
0.0732
0.00
-0.01
-0.04
0.82
-0.03
18
0.2712
0.01
-0.03
-0.17
0.66
-0.04
18.5
0.4061
0.01
-0.04
-0.34
0.44
-0.05
19
0.4440
0.01
-0.05
-0.56
0.25
-0.04
19.5
0.3480
0.01
-0.04
-0.76
0.13
-0.02
20
0.2168
0.00
-0.02
-0.88
0.06
-0.01
20.5
0.1213
0.00
-0.01
-0.94
0.03
-0.01
21
0.0659
0.00
-0.01
-0.97
0.02
-0.00
21.5
0.0360
0.00
-0.00
-0.99
0.01
-0.00
22
0.0202
0.00
-0.00
-0.99
0.01
-0.00
22.5
0.0116
0.00
-0.00
-1.00
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 35 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.