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V-Lab

Zhejiang Walrus New Material Co Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, September 21st, 2026

1 Day

33.78%

decreased by 2.22%

1 Week

35.88%

decreased by 0.12%

1 Month

40.89%

increased by 4.89%

Analysis last updated: Saturday, September 19, 2026 at 07:11 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Zhejiang Walrus New Material Co Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Oct 8, 2020 to Sep 18, 2026

Model Insight

Volatility shocks decay with a half-life of 10 trading days, meaning a shock loses half its impact after approximately 10 days. Returns follow a Student-t distribution with v = 4.31 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

Shock decay: Shocks decay with a 10-day half-lifev = 4.31 · fat tails
ParamValuet-stat
ωconst9.1559
1.34
αARCH0.1096
2.64***
βGARCH0.9329
18.83***
νDF4.3146
1.09

0.933

Persistence

10d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

9.1559
1.34
α

ARCH

Response to squared shocks

0.1096
2.64***
β

GARCH

Volatility persistence

0.9329
18.83***
ν

DF

Student-t tail thickness

4.3146
1.09

Persistence:

0.933

Half-life:

10 days