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V-Lab

Meiko Trans Co Ltd GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

17.56%

decreased by 0.15%

1 Week

18.34%

increased by 0.63%

1 Month

21.02%

increased by 3.31%

Analysis last updated: Saturday, August 22, 2026 at 11:09 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Meiko Trans Co Ltd GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Sep 30, 1993 to Aug 21, 2026

Model Insight

With persistence 0.992, volatility shocks have a half-life of 91 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Inverse leverage: Positive returns increase volatility 72% more than negative returns

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0648
5.93***
α

ARCH

Response to squared shocks

0.0932
10.92***
β

GARCH

Volatility persistence

0.9188
213.03***
γ

leverage

Additional response to negative shocks

-0.0391
-3.96***

Persistence:

0.992

Half-life:

91 days