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V-Lab

City of London Investment Group PLC GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, July 14th, 2026

1 Day

88.66%

increased by 5.69%

1 Week

89.55%

increased by 6.58%

1 Month

93.01%

increased by 10.04%

Analysis last updated: Tuesday, July 14, 2026 at 06:33 PM UTC

Date Range:

from

to

6M ·

All

graph of City of London Investment Group PLC GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 2026 to Jul 10, 2026

Model Insight

The estimated Student-t degrees of freedom v = 2.10 sit at the infinite-variance boundary (v → 2): the model is attributing extreme moves to heavy tails rather than to volatility, so the volatility scale is unreliable here. See the boundary-parameters flag.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

346.3970
8.62***
α

ARCH

Response to squared shocks

0.0773
10.08***
β

GARCH

Volatility persistence

0.9990
737.81***
ν

DF

Student-t tail thickness

2.0981
276.50***

Persistence:

0.999

Half-life:

693 days