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V-Lab

UOB-Kay Hian Holdings Ltd GJR-GARCH Volatility Analysis

High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful

Volatility prediction for Wednesday, August 26th, 2026

1 Day

40.86%

decreased by 0.78%

1 Week

40.90%

decreased by 0.74%

1 Month

41.09%

decreased by 0.55%

Analysis last updated: Wednesday, August 26, 2026 at 09:40 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of UOB-Kay Hian Holdings Ltd GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 14, 1990 to Aug 21, 2026

Model Insight

With persistence 1.000, volatility shocks have a half-life of 1386294 trading days (~5501.2 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Inverse leverage: Positive returns increase volatility 51% more than negative returns

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0077
12.00***
α

ARCH

Response to squared shocks

0.0563
21.30***
β

GARCH

Volatility persistence

0.9533
636.37***
γ

leverage

Additional response to negative shocks

-0.0191
-6.19***

Persistence:

1.000

Half-life:

1386294 days