■ 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 · Mon, Sep 14
■ calls (up)■ puts (down)SPX open contracts per strike for Mon, Sep 14.
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: 6300 +4K · 6000 +3K · 6200 +3K · 8325 +2K
Volume by strike · Mon, Sep 14
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Mon, Sep 14
— call IV— put IVATM ≈ 7.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Mon, Sep 14
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 · Mon, Sep 14
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.94
-1.36
7540
0.0016
0.93
-1.36
-0.06
0.93
-1.44
7545
0.0017
0.98
-1.44
-0.07
0.89
-2.05
7575
0.0028
1.40
-2.05
-0.11
0.88
-2.18
7580
0.0030
1.49
-2.18
-0.12
0.85
-2.44
7590
0.0036
1.67
-2.44
-0.15
0.82
-2.72
7600
0.0042
1.87
-2.72
-0.18
0.72
-3.38
7625
0.0060
2.37
-3.38
-0.28
0.56
-3.69
7650
0.0078
2.73
-3.69
-0.44
0.40
-3.37
7670
0.0081
2.68
-3.37
-0.60
0.36
-3.19
7675
0.0079
2.60
-3.19
-0.64
0.18
-1.96
7700
0.0057
1.89
-1.96
-0.82
0.15
-1.68
7705
0.0051
1.71
-1.68
-0.85
0.08
-0.95
7720
0.0034
1.16
-0.95
-0.92
0.06
-0.77
7725
0.0028
0.99
-0.77
-0.94
0.05
-0.61
7730
0.0024
0.85
-0.61
-0.95
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.