■ 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 — 635 — is the max pain price.
Open interest by strike · Mon, Sep 21
■ calls (up)■ puts (down)META open contracts per strike for Mon, Sep 21.
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: 655 +131 · 652.5 +96 · 657.5 +78 · 625 +73
Volume by strike · Mon, Sep 21
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Mon, Sep 21
— call IV— put IVATM ≈ 32.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Mon, Sep 21
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 21
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.71
-0.61
630
0.0097
0.37
-0.61
-0.29
0.69
-0.64
632.5
0.0101
0.38
-0.64
-0.32
0.66
-0.66
635
0.0105
0.39
-0.66
-0.34
0.63
-0.68
637.5
0.0108
0.41
-0.68
-0.37
0.61
-0.69
640
0.0110
0.41
-0.69
-0.40
0.58
-0.70
642.5
0.0112
0.42
-0.70
-0.43
0.55
-0.71
645
0.0113
0.42
-0.71
-0.46
0.52
-0.72
647.5
0.0114
0.43
-0.71
-0.48
0.49
-0.72
650
0.0114
0.43
-0.71
-0.51
0.47
-0.71
652.5
0.0114
0.43
-0.71
-0.54
0.44
-0.71
655
0.0112
0.42
-0.70
-0.57
0.41
-0.70
657.5
0.0111
0.42
-0.69
-0.59
0.38
-0.69
660
0.0109
0.41
-0.68
-0.62
0.36
-0.67
662.5
0.0106
0.40
-0.66
-0.65
0.33
-0.65
665
0.0103
0.39
-0.65
-0.67
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 44 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.