Event risk before this expiration:FOMC decision Wed, Sep 16 · Jobs report Fri, Oct 2 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ 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 — 18 — is the max pain price.
Open interest by strike · Fri, Oct 9
■ calls (up)■ puts (down)SOFI open contracts per strike for Fri, Oct 9.
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: 17 +368 · 16 +218 · 18.5 +189 · 17.5 +167
Volume by strike · Fri, Oct 9
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 9
— call IV— put IVATM ≈ 45.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 9
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 · Fri, Oct 9
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.94
-0.01
14
0.0473
0.01
-0.01
-0.06
0.91
-0.01
14.5
0.0657
0.01
-0.01
-0.09
0.87
-0.01
15
0.0886
0.01
-0.01
-0.13
0.82
-0.01
15.5
0.1145
0.01
-0.01
-0.18
0.75
-0.01
16
0.1409
0.01
-0.01
-0.24
0.68
-0.01
16.5
0.1634
0.02
-0.01
-0.32
0.59
-0.01
17
0.1780
0.02
-0.01
-0.41
0.50
-0.02
17.5
0.1820
0.02
-0.02
-0.50
0.41
-0.01
18
0.1758
0.02
-0.01
-0.59
0.33
-0.01
18.5
0.1619
0.02
-0.01
-0.67
0.27
-0.01
19
0.1436
0.02
-0.01
-0.73
0.21
-0.01
19.5
0.1239
0.01
-0.01
-0.79
0.17
-0.01
20
0.1051
0.01
-0.01
-0.83
0.13
-0.01
20.5
0.0880
0.01
-0.01
-0.87
0.11
-0.01
21
0.0730
0.01
-0.01
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 28 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.