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V-Lab
V-Lab

Vietnam Hanoi Stock Exchange Equity Index Spline-GARCH Volatility Analysis

Volatility prediction for Friday, September 18th, 2026

1 Day

16.56%

decreased by 0.90%

1 Week

17.85%

increased by 0.39%

1 Month

21.67%

increased by 4.21%

Analysis last updated: Friday, September 18, 2026 at 09:59 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Vietnam Hanoi Stock Exchange Equity Index SGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 13, 2005 to Sep 17, 2026

Model Insight

This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 29 trading days.

τ

Spline-GARCH Model

Tap to view equation

Time-varying baseline: volatility reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst2.2406
5.50***
αARCH0.1813
10.66***
βGARCH0.7948
47.75***
γi Spline Coefficients
K=1
γ10.0099
3.96***

0.976

Persistence

29d

Half-life
τ

Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

2.2406
5.50***
α

ARCH

Response to squared shocks

0.1813
10.66***
β

GARCH

Volatility persistence

0.7948
47.75***
γi Spline Coefficients
K=1
γ10.0099
3.96***

Persistence:

0.976

Half-life:

29 days