Event risk before this expiration: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 — 195 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)MS 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 ≈ 32.5% · 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
0.98
-0.02
155
0.0023
0.02
-0.02
-0.02
0.97
-0.03
160
0.0036
0.03
-0.03
-0.04
0.95
-0.04
165
0.0059
0.04
-0.04
-0.06
0.92
-0.06
170
0.0094
0.07
-0.06
-0.10
0.86
-0.08
175
0.0145
0.10
-0.09
-0.16
0.77
-0.11
180
0.0201
0.14
-0.12
-0.26
0.66
-0.13
185
0.0248
0.17
-0.14
-0.37
0.53
-0.14
190
0.0272
0.18
-0.14
-0.51
0.39
-0.14
195
0.0266
0.17
-0.13
-0.64
0.27
-0.11
200
0.0231
0.15
-0.11
-0.75
0.17
-0.09
205
0.0178
0.12
-0.08
-0.84
0.10
-0.06
210
0.0125
0.08
-0.06
-0.91
0.06
-0.04
215
0.0083
0.06
-0.04
-0.94
0.04
-0.03
220
0.0056
0.04
-0.03
-0.96
0.03
-0.03
225
0.0041
0.03
-0.02
-0.97
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 23 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.