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V-Lab

ATIF Holdings Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, September 14th, 2026

1 Day

95.36%

increased by 8.26%

1 Week

101.11%

increased by 14.01%

1 Month

111.26%

increased by 24.16%

Analysis last updated: Friday, September 11, 2026 at 10:13 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of ATIF Holdings Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 3, 2019 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 5 trading days, meaning a shock loses half its impact after approximately 5 days. Returns follow a Student-t distribution with v = 3.10 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 5-day half-lifev = 3.10 · fat tails
ParamValuet-stat
ωconst56.3751
1.21
αARCH0.1918
2.91***
βGARCH0.8749
8.76***
νDF3.1009
2.50**

0.875

Persistence

5d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

56.3751
1.21
α

ARCH

Response to squared shocks

0.1918
2.91***
β

GARCH

Volatility persistence

0.8749
8.76***
ν

DF

Student-t tail thickness

3.1009
2.50**

Persistence:

0.875

Half-life:

5 days