■ 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 — 7750 — is the max pain price.
Open interest by strike · Mon, Nov 2
■ calls (up)■ puts (down)SPX open contracts per strike for Mon, Nov 2.
Open-interest change · 2026-10-28 → 2026-10-29
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. Only strikes observed on both days are compared; 18 strikes were in only one day’s snapshot (each keeps its largest strikes) and are left out. Biggest moves: 6000 +1K · 7675 +1K · 7770 −824 · 7570 −717
Volume by strike · Mon, Nov 2
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Mon, Nov 2
— call IV— put IVATM ≈ 10.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Mon, Nov 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 · Mon, Nov 2
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.60
-5.34
7620
0.0040
2.99
-5.34
-0.40
0.58
-5.37
7625
0.0041
3.03
-5.37
-0.42
0.48
-5.27
7650
0.0043
3.08
-5.27
-0.52
0.43
-5.11
7660
0.0043
3.04
-5.11
-0.57
0.37
-4.75
7675
0.0042
2.92
-4.75
-0.63
0.30
-4.26
7690
0.0040
2.72
-4.26
-0.70
0.26
-3.88
7700
0.0038
2.55
-3.88
-0.74
0.17
-2.84
7725
0.0030
2.04
-2.84
-0.83
0.16
-2.63
7730
0.0028
1.92
-2.63
-0.84
0.10
-1.85
7750
0.0022
1.47
-1.85
-0.90
0.09
-1.67
7755
0.0020
1.37
-1.67
-0.91
0.06
-1.21
7770
0.0015
1.06
-1.21
-0.94
0.06
-1.08
7775
0.0014
0.97
-1.08
-0.94
0.03
-0.59
7800
0.0008
0.61
-0.59
-0.97
0.02
-0.41
7815
0.0006
0.46
-0.42
-0.98
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.