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V-Lab

Vietnam Airlines Jsc GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

31.08%

increased by 0.26%

1 Week

33.39%

increased by 2.57%

1 Month

37.25%

increased by 6.43%

Analysis last updated: Sunday, August 23, 2026 at 03:31 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Vietnam Airlines Jsc GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 7, 2019 to Aug 21, 2026

Model Insight

This asset exhibits a modest leverage effect: negative returns increase next-day volatility 47% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.8491
13.34***
α

ARCH

Response to squared shocks

0.1215
10.65***
β

GARCH

Volatility persistence

0.7163
49.30***
γ

leverage

Additional response to negative shocks

0.0576
2.37**

Persistence:

0.867

Half-life:

5 days