Event risk before this expiration:FOMC decision Wed, Sep 16 · Jobs report Fri, Oct 2 · CPI release Wed, Oct 14 — 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 23
■ calls (up)■ puts (down)GME open contracts per strike for Fri, Oct 23.
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: 35 +305 · 20 +232 · 25 +177 · 28 +55
Volume by strike · Fri, Oct 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 43.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.92
-0.01
17.5
0.0488
0.01
-0.01
-0.09
0.89
-0.01
18
0.0615
0.01
-0.01
-0.11
0.85
-0.01
18.5
0.0764
0.02
-0.01
-0.15
0.81
-0.01
19
0.0919
0.02
-0.01
-0.19
0.76
-0.01
19.5
0.1060
0.02
-0.01
-0.25
0.69
-0.01
20
0.1170
0.03
-0.01
-0.31
0.63
-0.01
20.5
0.1238
0.03
-0.01
-0.38
0.56
-0.01
21
0.1261
0.03
-0.01
-0.44
0.50
-0.01
21.5
0.1245
0.03
-0.01
-0.50
0.45
-0.01
22
0.1199
0.03
-0.02
-0.56
0.39
-0.01
22.5
0.1133
0.03
-0.02
-0.61
0.35
-0.01
23
0.1056
0.03
-0.02
-0.66
0.31
-0.01
23.5
0.0975
0.03
-0.01
-0.70
0.28
-0.01
24
0.0896
0.02
-0.01
-0.73
0.22
-0.01
25
0.0749
0.02
-0.01
-0.79
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.