Event risk before this expiration:Jobs report Fri, Oct 2 · CPI release Wed, Oct 14 · FOMC decision Wed, Oct 28 — 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 — 152.5 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)TGT open contracts per strike for Fri, Oct 30.
Open-interest change — building vs unwinding
Needs two observed snapshot days for this expiration — the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Fri, Oct 30
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 30
— call IV— put IVATM ≈ 29.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 30
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 30
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.82
-0.05
145
0.0163
0.13
-0.05
-0.18
0.81
-0.05
146
0.0174
0.14
-0.06
-0.19
0.77
-0.06
148
0.0195
0.16
-0.06
-0.23
0.75
-0.06
149
0.0205
0.16
-0.06
-0.25
0.73
-0.06
150
0.0215
0.17
-0.07
-0.27
0.67
-0.07
152.5
0.0237
0.19
-0.07
-0.33
0.61
-0.07
155
0.0254
0.20
-0.07
-0.40
0.55
-0.08
157.5
0.0263
0.20
-0.08
-0.46
0.48
-0.08
160
0.0266
0.21
-0.08
-0.53
0.41
-0.07
162.5
0.0260
0.20
-0.08
-0.59
0.35
-0.07
165
0.0248
0.19
-0.07
-0.66
0.30
-0.07
167.5
0.0231
0.18
-0.07
-0.72
0.25
-0.06
170
0.0210
0.16
-0.06
-0.77
0.20
-0.05
172.5
0.0186
0.15
-0.06
-0.82
0.16
-0.05
175
0.0162
0.13
-0.05
-0.86
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 26 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 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.