Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 10 — 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 — 340 — is the max pain price.
Open interest by strike · Fri, Apr 16
■ calls (up)■ puts (down)GOOGL open contracts per strike for Fri, Apr 16.
Open-interest change · 2026-10-23 → 2026-10-26
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; 2 strikes were in only one day’s snapshot (each keeps its largest strikes) and are left out. Biggest moves: 355 +314 · 245 +265 · 275 +191 · 265 +99
Volume by strike · Fri, Apr 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Apr 16
— call IV— put IVATM ≈ 33.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Apr 16
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, Apr 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.77
-0.05
280
0.0040
0.66
-0.07
-0.23
0.75
-0.06
285
0.0043
0.70
-0.07
-0.26
0.73
-0.06
290
0.0045
0.73
-0.07
-0.28
0.70
-0.06
295
0.0047
0.76
-0.07
-0.31
0.68
-0.07
300
0.0049
0.78
-0.08
-0.33
0.65
-0.07
305
0.0050
0.81
-0.08
-0.36
0.62
-0.07
310
0.0052
0.83
-0.08
-0.39
0.60
-0.07
315
0.0053
0.84
-0.08
-0.42
0.57
-0.07
320
0.0054
0.85
-0.08
-0.45
0.54
-0.08
325
0.0055
0.86
-0.08
-0.47
0.52
-0.08
330
0.0055
0.87
-0.08
-0.50
0.49
-0.08
335
0.0055
0.87
-0.08
-0.53
0.47
-0.08
340
0.0055
0.86
-0.08
-0.56
0.44
-0.08
345
0.0055
0.86
-0.08
-0.59
0.41
-0.08
350
0.0054
0.85
-0.08
-0.61
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 54 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.