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 — 102 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)UAL 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 ≈ 54.1% · 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
0.88
-0.15
94
0.0328
0.02
-0.15
-0.12
0.84
-0.18
95
0.0395
0.03
-0.18
-0.16
0.80
-0.22
96
0.0462
0.03
-0.22
-0.20
0.75
-0.25
97
0.0526
0.03
-0.25
-0.26
0.69
-0.28
98
0.0581
0.04
-0.28
-0.31
0.63
-0.30
99
0.0624
0.04
-0.30
-0.37
0.56
-0.32
100
0.0652
0.04
-0.32
-0.44
0.50
-0.32
101
0.0663
0.04
-0.32
-0.51
0.43
-0.31
102
0.0657
0.04
-0.31
-0.57
0.37
-0.29
103
0.0634
0.04
-0.30
-0.64
0.31
-0.27
104
0.0595
0.04
-0.27
-0.70
0.25
-0.24
105
0.0543
0.03
-0.24
-0.76
0.20
-0.20
106
0.0481
0.03
-0.20
-0.81
0.16
-0.17
107
0.0413
0.03
-0.17
-0.85
0.12
-0.14
108
0.0346
0.02
-0.14
-0.89
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 51 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.