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 — 110 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)FUTU 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 ≈ 43.1% · 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
0.97
-0.03
85
0.0077
0.01
-0.03
-0.03
0.91
-0.08
90
0.0212
0.02
-0.08
-0.09
0.76
-0.15
95
0.0460
0.04
-0.16
-0.25
0.71
-0.17
96
0.0510
0.05
-0.17
-0.29
0.66
-0.18
97
0.0554
0.05
-0.18
-0.35
0.60
-0.19
98
0.0587
0.05
-0.19
-0.41
0.54
-0.19
99
0.0606
0.06
-0.19
-0.47
0.48
-0.19
100
0.0611
0.06
-0.19
-0.53
0.42
-0.19
101
0.0600
0.05
-0.19
-0.59
0.36
-0.18
102
0.0575
0.05
-0.18
-0.65
0.31
-0.17
103
0.0539
0.05
-0.17
-0.70
0.26
-0.15
104
0.0494
0.04
-0.15
-0.75
0.22
-0.14
105
0.0444
0.04
-0.14
-0.80
0.18
-0.12
106
0.0393
0.04
-0.12
-0.83
0.15
-0.11
107
0.0343
0.03
-0.11
-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 42 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.