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V-Lab

VT Co Ltd GJR-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

59.55%

decreased by 1.88%

1 Week

59.79%

decreased by 1.64%

1 Month

60.73%

decreased by 0.70%

Analysis last updated: Friday, September 11, 2026 at 08:31 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of VT Co Ltd GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 19, 2001 to Sep 4, 2026

Model Insight

With persistence 0.997, volatility shocks have a half-life of 204 trading days (~0.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

σ

GJR-GARCH Model

Tap to view equation

High persistence: persistence 0.997, shock half-life ~204 days
ParamValuet-stat
ωconst0.1053
3.02***
αARCH0.0686
4.55***
βGARCH0.9322
71.50***
γleverage-0.0084
-0.30

0.997

Persistence

204d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1053
3.02***
α

ARCH

Response to squared shocks

0.0686
4.55***
β

GARCH

Volatility persistence

0.9322
71.50***
γ

leverage

Additional response to negative shocks

-0.0084
-0.30

Persistence:

0.997

Half-life:

204 days