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V-Lab

Vietnam Ho Chi Minh Stock Index / VN-Index GJR-GARCH Volatility Analysis

Volatility prediction for Friday, July 24th, 2026

1 Day

29.65%

decreased by 0.94%

1 Week

29.28%

decreased by 1.31%

1 Month

28.00%

decreased by 2.59%

Analysis last updated: Friday, July 24, 2026 at 11:19 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Vietnam Ho Chi Minh Stock Index / VN-Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 12, 2010 to Apr 29, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 103% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0466
13.97***
α

ARCH

Response to squared shocks

0.0768
9.43***
β

GARCH

Volatility persistence

0.8576
186.67***
γ

leverage

Additional response to negative shocks

0.0790
5.67***

Persistence:

0.974

Half-life:

26 days