Event risk before this expiration: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 — 187.5 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)AEM 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 ≈ 44.9% · 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
0.83
-0.14
172.5
0.0142
0.10
-0.14
-0.17
0.80
-0.16
175
0.0164
0.11
-0.16
-0.21
0.75
-0.18
177.5
0.0185
0.12
-0.18
-0.25
0.70
-0.19
180
0.0204
0.13
-0.20
-0.30
0.65
-0.21
182.5
0.0219
0.14
-0.21
-0.35
0.59
-0.22
185
0.0230
0.15
-0.22
-0.41
0.53
-0.22
187.5
0.0235
0.15
-0.23
-0.47
0.47
-0.23
190
0.0234
0.15
-0.23
-0.53
0.42
-0.22
192.5
0.0229
0.15
-0.22
-0.59
0.36
-0.21
195
0.0219
0.14
-0.21
-0.64
0.31
-0.20
197.5
0.0206
0.14
-0.20
-0.69
0.27
-0.19
200
0.0190
0.13
-0.19
-0.74
0.23
-0.17
202.5
0.0173
0.12
-0.17
-0.78
0.19
-0.16
205
0.0155
0.10
-0.16
-0.81
0.14
-0.13
210
0.0121
0.08
-0.12
-0.87
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 35 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.