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Ghana Stock Exchange Composite Index GAS-GARCH Student T Volatility Analysis

Volatility prediction for Friday, October 16th, 2026

1 Day

135.83%

increased by 26.68%

1 Week

133.15%

increased by 24.00%

1 Month

125.19%

increased by 16.04%

Analysis last updated: Wednesday, October 21, 2026 at 07:29 PM UTC

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Date Range:

from

10/15/2024

to

10/15/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Ghana Stock Exchange Composite Index GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 4, 2011 to Oct 15, 2026
Extended Optimization

Model Insight

The estimated Student-t degrees of freedom v = 2.01 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

Unreliable tails: v = 2.01 sits at the infinite-variance boundary
ParamValuet-stat
ωlong-run46.0581
1.07
αscore0.1349
10.20***
βpersistence0.9466
18.60***
νDF2.0059
763.88***

0.947

Persistence

13d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

long-run

Long-run variance given a price move

46.0581
1.07
α

score

Weight on the scaled score

0.1349
10.20***
β

persistence

Volatility persistence

0.9466
18.60***
ν

DF

Student-t tail thickness

2.0059
763.88***

Persistence:

0.947

Half-life:

13 days