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Liberty Capital Corporation Series C GCI Group Common Stock GLIBK

i

Market dataready · fetched 2026-11-12T15:55:09.667Z

Delta surfaceAlpaca · derived absolute-delta buckets · 2026-12-18

Calculation methodology

Options historyIV: ThetaData historical Greeks, equal-weight mean of call/put 50-delta IV across the next four listed Friday-cycle expirations, including holiday shifts verified against ThetaData’s market calendar. Missing inputs leave gaps. Skew: equal-weight mean of put minus call IV across those four expirations. IV-implied move history: mean of each expiration’s average call/put IV multiplied by the square root of remaining calendar days divided by 365.25; percentage of spot, not a quoted straddle premium.

History data

PriceAlpaca · sip · 2026-11-12T15:54:37.498422132Z

FundamentalsSEC EDGAR · ready · as of 2026-09-30 · fetched 2026-11-12T15:55:08.246431+00:00

Share price$28.69
1D+0.3%
$28.36$28.52$28.69$28.85$29.015:30 AM6:30 AM9:00 AM1:00 PMGLIBK
Sold putSold call

Liberty Capital Corporation Series C GCI Group Common Stock options

Live interpolated GLIBK call and put midpoint premiums by absolute delta.Liberty Capital Corporation Series C GCI Group Common Stock$0.91$2.05$3.19$4.33$5.47$17.62$22.30$26.98$31.66$36.3420Δ25Δ30Δ35Δ40Δ45Δ50Δ55Δ60Δ65Δ70Δ75Δ80Δ20Δ C unavailable: no unambiguous, price-consistent delta bracketC —25Δ C unavailable: no unambiguous, price-consistent delta bracketC —30Δ C unavailable: no unambiguous, price-consistent delta bracketC —35Δ C unavailable: no unambiguous, price-consistent delta bracketC —40Δ C unavailable: no unambiguous, price-consistent delta bracketC —60Δ P unavailable: no unambiguous, price-consistent delta bracketP —65Δ P unavailable: no unambiguous, price-consistent delta bracketP —70Δ P unavailable: no unambiguous, price-consistent delta bracketP —75Δ P unavailable: no unambiguous, price-consistent delta bracketP —80Δ P unavailable: no unambiguous, price-consistent delta bracketP —OPTION PRICELive GLIBK spot · $28.68GLIBK PRICE$1.54$2.05$2.57$3.08$3.60$4.11$4.63$5.14$1.04$1.17$1.40$1.62$1.85$2.08$2.30$2.53
Puts——
Calls——
Skew——
Implied moveBearish±$4.36
Tilt——
Table
Values and derived Greeks for the plotted delta buckets
DeltaCallsPuts
Pseudo strikeIVB/E movePseudo strikeIVB/E move
20Δ23.5190.8%21.7%
25Δ25.1576.6%16.4%
30Δ25.9272.9%14.5%
35Δ26.6969.1%12.6%
40Δ27.4665.4%10.7%
45Δ29.7251.8%9.0%28.2361.6%8.8%
50Δ28.9752.4%8.1%29.0057.8%6.9%
55Δ28.2153.0%7.3%29.7754.1%5.0%
60Δ27.4553.6%6.4%
65Δ26.7054.2%5.6%
70Δ25.9454.8%4.8%
75Δ25.1855.4%3.9%
80Δ24.4356.0%3.1%

20Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
23.51
IV
90.8%
B/E move
21.7%

25Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
25.15
IV
76.6%
B/E move
16.4%

30Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
25.92
IV
72.9%
B/E move
14.5%

35Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
26.69
IV
69.1%
B/E move
12.6%

40Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
27.46
IV
65.4%
B/E move
10.7%

45Δ

Calls
Pseudo strike
29.72
IV
51.8%
B/E move
9.0%
Puts
Pseudo strike
28.23
IV
61.6%
B/E move
8.8%

50Δ

Calls
Pseudo strike
28.97
IV
52.4%
B/E move
8.1%
Puts
Pseudo strike
29.00
IV
57.8%
B/E move
6.9%

55Δ

Calls
Pseudo strike
28.21
IV
53.0%
B/E move
7.3%
Puts
Pseudo strike
29.77
IV
54.1%
B/E move
5.0%

60Δ

Calls
Pseudo strike
27.45
IV
53.6%
B/E move
6.4%
Puts
Pseudo strike
IV
B/E move

65Δ

Calls
Pseudo strike
26.70
IV
54.2%
B/E move
5.6%
Puts
Pseudo strike
IV
B/E move

70Δ

Calls
Pseudo strike
25.94
IV
54.8%
B/E move
4.8%
Puts
Pseudo strike
IV
B/E move

75Δ

Calls
Pseudo strike
25.18
IV
55.4%
B/E move
3.9%
Puts
Pseudo strike
IV
B/E move

80Δ

Calls
Pseudo strike
24.43
IV
56.0%
B/E move
3.1%
Puts
Pseudo strike
IV
B/E move

Options history

IV · four-Friday blend59.34%
Daily close
GLIBK42.6%83.5%124.4%2026-08-20: 89.25%2026-08-21: 54.70%2026-08-24: 54.08%2026-08-25: 55.07%2026-08-26: 55.29%2026-08-28: 56.70%2026-08-31: 54.05%2026-09-03: 54.35%2026-09-04: 58.65%2026-09-11: 68.13%2026-09-16: 79.68%2026-09-17: 118.74%2026-09-18: 57.29%2026-09-21: 48.20%2026-09-22: 49.82%2026-09-23: 53.60%2026-09-24: 50.60%2026-09-25: 54.56%2026-09-28: 52.03%2026-09-29: 53.25%2026-09-30: 56.38%2026-10-01: 57.94%2026-10-02: 58.20%2026-10-06: 53.44%2026-10-07: 60.39%2026-10-08: 58.77%2026-10-12: 72.53%2026-10-13: 84.96%2026-10-14: 75.25%2026-10-15: 111.34%2026-10-16: 57.29%2026-10-19: 55.80%2026-10-20: 58.81%2026-10-21: 57.80%2026-10-23: 59.25%2026-10-26: 58.86%2026-10-27: 59.64%2026-10-28: 64.80%2026-10-29: 60.43%2026-10-30: 59.34%Aug 20Sep 29Oct 30
40 observations2026-08-20 — 2026-10-30
Table
DateIV (%)
89.25%
54.70%
54.08%
55.07%
55.29%
56.70%
54.05%
54.35%
58.65%
68.13%
79.68%
118.74%
57.29%
48.20%
49.82%
53.60%
50.60%
54.56%
52.03%
53.25%
56.38%
57.94%
58.20%
53.44%
60.39%
58.77%
72.53%
84.96%
75.25%
111.34%
57.29%
55.80%
58.81%
57.80%
59.25%
58.86%
59.64%
64.80%
60.43%
59.34%