■ 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 — 7680 — is the max pain price.
Open interest by strike · Tue, Sep 22
■ calls (up)■ puts (down)SPX open contracts per strike for Tue, Sep 22.
Open-interest change — building vs unwinding
Needs two observed snapshot days for this expiration — the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Tue, Sep 22
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Tue, Sep 22
— call IV— put IVATM ≈ 11.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Tue, Sep 22
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 22
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.69
-2.77
7580
0.0021
4.72
-2.77
-0.31
0.67
-2.80
7590
0.0022
4.83
-2.80
-0.33
0.66
-2.81
7595
0.0022
4.88
-2.81
-0.34
0.65
-2.82
7600
0.0022
4.93
-2.82
-0.35
0.58
-2.85
7630
0.0025
5.18
-2.85
-0.41
0.56
-2.83
7640
0.0026
5.24
-2.83
-0.44
0.54
-2.81
7650
0.0026
5.28
-2.81
-0.47
0.51
-2.78
7660
0.0027
5.29
-2.78
-0.49
0.48
-2.73
7670
0.0027
5.29
-2.73
-0.52
0.47
-2.70
7675
0.0027
5.28
-2.70
-0.53
0.46
-2.67
7680
0.0027
5.26
-2.67
-0.55
0.44
-2.64
7685
0.0027
5.24
-2.64
-0.56
0.43
-2.60
7690
0.0027
5.21
-2.60
-0.57
0.40
-2.52
7700
0.0027
5.13
-2.52
-0.60
0.37
-2.42
7710
0.0027
5.03
-2.42
-0.63
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.