■ 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 — 7675 — is the max pain price.
Open interest by strike · Tue, Sep 15
■ calls (up)■ puts (down)SPX open contracts per strike for Tue, Sep 15.
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: 8250 +2K · 7650 +1K · 5600 +942 · 7750 +797
Volume by strike · Tue, Sep 15
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Tue, Sep 15
— call IV— put IVATM ≈ 8.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Tue, Sep 15
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 · Tue, Sep 15
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.87
-2.35
7550
0.0022
1.72
-2.35
-0.13
0.83
-2.78
7575
0.0029
2.10
-2.78
-0.17
0.78
-3.15
7595
0.0036
2.44
-3.15
-0.22
0.76
-3.23
7600
0.0038
2.52
-3.23
-0.24
0.67
-3.60
7625
0.0049
2.92
-3.60
-0.33
0.65
-3.64
7630
0.0051
2.99
-3.64
-0.35
0.60
-3.70
7640
0.0054
3.10
-3.70
-0.40
0.54
-3.69
7650
0.0057
3.17
-3.69
-0.46
0.42
-3.44
7670
0.0060
3.13
-3.44
-0.58
0.39
-3.33
7675
0.0059
3.08
-3.33
-0.61
0.36
-3.19
7680
0.0059
3.01
-3.19
-0.64
0.33
-3.04
7685
0.0057
2.92
-3.04
-0.67
0.30
-2.87
7690
0.0056
2.82
-2.87
-0.70
0.24
-2.50
7700
0.0051
2.58
-2.50
-0.76
0.22
-2.30
7705
0.0048
2.43
-2.30
-0.78
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.