Event risk before this expiration:FOMC decision Wed, Sep 16 · Jobs report Fri, Oct 2 — 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 — 13.5 — is the max pain price.
Open interest by strike · Fri, Oct 2
■ calls (up)■ puts (down)F open contracts per strike for Fri, Oct 2.
Open-interest change · 2026-09-10 → 2026-09-11
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 +136 · 14 +124 · 16 +109 · 14.5 +72
Volume by strike · Fri, Oct 2
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 2
— call IV— put IVATM ≈ 31.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 2
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 2
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.98
-0.00
10.5
0.0223
0.00
-0.00
-0.02
0.97
-0.00
11
0.0343
0.00
-0.00
-0.03
0.96
-0.00
11.5
0.0539
0.00
-0.00
-0.04
0.93
-0.00
12
0.0861
0.00
-0.00
-0.07
0.89
-0.01
12.5
0.1392
0.01
-0.01
-0.11
0.82
-0.01
13
0.2223
0.01
-0.01
-0.18
0.69
-0.01
13.5
0.3287
0.01
-0.01
-0.31
0.51
-0.01
14
0.3932
0.01
-0.01
-0.49
0.33
-0.01
14.5
0.3485
0.01
-0.01
-0.67
0.20
-0.01
15
0.2537
0.01
-0.01
-0.80
0.13
-0.01
15.5
0.1738
0.01
-0.01
-0.88
0.09
-0.01
16
0.1194
0.01
-0.01
-0.92
0.06
-0.00
16.5
0.0838
0.00
-0.00
-0.95
0.04
-0.00
17
0.0604
0.00
-0.00
-0.96
0.03
-0.00
17.5
0.0446
0.00
-0.00
-0.97
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 23 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.