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V-Lab
V-Lab

Inner Mongolia Shuangxin Environment-Friendly Material Co Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, September 21st, 2026

1 Day

37.74%

increased by 10.17%

1 Week

40.96%

increased by 13.39%

1 Month

51.25%

increased by 23.68%

Analysis last updated: Saturday, September 19, 2026 at 07:13 PM UTC

Date Range:

from

to

6M ·

All

graph of Inner Mongolia Shuangxin Environment-Friendly Material Co Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 30, 2025 to Sep 18, 2026

Model Insight

Volatility shocks decay with a half-life of 68 trading days, meaning a shock loses half its impact after approximately 68 days. Returns follow a Student-t distribution with v = 5.09 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 68-day half-lifev = 5.09 · fat tails
ParamValuet-stat
ωconst56.0275
0.86
αARCH0.2800
4.05***
βGARCH0.9899
85.65***
νDF5.0850
1.47

0.990

Persistence

68d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

56.0275
0.86
α

ARCH

Response to squared shocks

0.2800
4.05***
β

GARCH

Volatility persistence

0.9899
85.65***
ν

DF

Student-t tail thickness

5.0850
1.47

Persistence:

0.990

Half-life:

68 days