Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 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 — 175 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)PLTR open contracts per strike for Fri, Nov 20.
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: 165 +269 · 170 −228 · 182.5 +162 · 185 −157
Volume by strike · Fri, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 67.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.75
-0.23
180
0.0089
0.16
-0.23
-0.25
0.73
-0.24
182.5
0.0094
0.17
-0.24
-0.27
0.70
-0.25
185
0.0098
0.18
-0.26
-0.30
0.68
-0.26
187.5
0.0102
0.18
-0.26
-0.33
0.65
-0.27
190
0.0106
0.19
-0.27
-0.35
0.59
-0.28
195
0.0112
0.20
-0.28
-0.41
0.56
-0.28
197.5
0.0114
0.20
-0.28
-0.44
0.53
-0.28
200
0.0115
0.20
-0.29
-0.47
0.48
-0.28
205
0.0116
0.20
-0.28
-0.53
0.42
-0.28
210
0.0115
0.20
-0.28
-0.58
0.37
-0.27
215
0.0111
0.19
-0.27
-0.64
0.32
-0.25
220
0.0105
0.18
-0.25
-0.69
0.27
-0.23
225
0.0098
0.17
-0.23
-0.73
0.23
-0.21
230
0.0090
0.16
-0.21
-0.78
0.19
-0.19
235
0.0081
0.14
-0.19
-0.81
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 52 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.