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V-Lab

Zeng Hsing Industrial Co Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, August 25th, 2026

1 Day

36.34%

increased by 3.02%

1 Week

36.45%

increased by 3.13%

1 Month

36.85%

increased by 3.53%

Analysis last updated: Tuesday, August 25, 2026 at 08:18 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of Zeng Hsing Industrial Co Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Sep 18, 2007 to Aug 21, 2026

Model Insight

With persistence 0.999, volatility shocks have a half-life of 518 trading days (~2.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 3.22 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

16.2613
7.77***
α

ARCH

Response to squared shocks

0.0777
83.44***
β

GARCH

Volatility persistence

0.9987
6,360.92***
ν

DF

Student-t tail thickness

3.2229
84.41***

Persistence:

0.999

Half-life:

518 days