■ 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 — 12 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)F open contracts per strike for Fri, Oct 23.
Open-interest change · 2026-10-15 → 2026-10-16
Net contracts opened (up, green) or closed (down, red) per strike since the previous snapshot — where the walls are building and where they’re unwinding. Biggest moves: 12.5 +884 · 13 +280 · 13.5 +99 · 12 −62
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 ≈ 33.0% · 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
1.00
-0.00
9
0.0058
0.00
-0.00
-0.00
0.99
-0.00
9.5
0.0109
0.00
-0.00
-0.01
0.99
-0.00
10
0.0212
0.00
-0.00
-0.01
0.98
-0.00
10.5
0.0432
0.00
-0.00
-0.02
0.96
-0.01
11
0.0936
0.00
-0.01
-0.04
0.91
-0.01
11.5
0.2168
0.00
-0.01
-0.09
0.78
-0.01
12
0.4958
0.01
-0.01
-0.23
0.46
-0.02
12.5
0.7174
0.01
-0.02
-0.54
0.20
-0.01
13
0.4431
0.01
-0.01
-0.81
0.09
-0.01
13.5
0.2156
0.00
-0.01
-0.92
0.04
-0.01
14
0.1110
0.00
-0.01
-0.96
0.03
-0.00
14.5
0.0623
0.00
-0.00
-0.98
0.02
-0.00
15
0.0376
0.00
-0.00
-0.99
0.01
-0.00
15.5
0.0241
0.00
-0.00
-0.99
0.01
-0.00
16
0.0163
0.00
-0.00
-0.99
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 28 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 history — nearest expiry vs price
— max pain (nearest expiry)- - delayed closeOne point per snapshot day since 2026-07-28; unobserved days are gaps, not guesses.
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.