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V-Lab

Lianhe Sowell International Group Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Wednesday, August 26th, 2026

1 Day

320.42%

increased by 72.78%

1 Week

308.60%

increased by 60.96%

1 Month

279.76%

increased by 32.12%

Analysis last updated: Tuesday, August 25, 2026 at 09:26 PM UTC

Date Range:

from

to

6M ·

1Y ·

All

graph of Lianhe Sowell International Group Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 3, 2025 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 7 trading days, meaning a shock loses half its impact after approximately 7 days. Returns follow a Student-t distribution with v = 2.47 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

231.4160
1.87*
α

ARCH

Response to squared shocks

0.1461
8.88***
β

GARCH

Volatility persistence

0.9081
20.69***
ν

DF

Student-t tail thickness

2.4696
10.29***

Persistence:

0.908

Half-life:

7 days