Skip to main content
V-Lab
V-Lab

Shanghai Stock Exchange Composite Index GJR-GARCH Volatility Analysis

Volatility prediction for Monday, September 7th, 2026

1 Day

15.30%

decreased by 0.43%

1 Week

15.58%

decreased by 0.15%

1 Month

16.63%

increased by 0.90%

Analysis last updated: Friday, September 4, 2026 at 08:29 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Shanghai Stock Exchange Composite Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 21, 1992 to Sep 4, 2026

Model Insight

With persistence 0.998, volatility shocks have a half-life of 374 trading days (~1.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

σ

GJR-GARCH Model

Tap to view equation

High persistence: persistence 0.998, shock half-life ~374 days
ParamValuet-stat
ωconst0.0187
3.60***
αARCH0.0651
4.23***
βGARCH0.9190
78.04***
γleverage0.0282
1.36

0.998

Persistence

374d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0187
3.60***
α

ARCH

Response to squared shocks

0.0651
4.23***
β

GARCH

Volatility persistence

0.9190
78.04***
γ

leverage

Additional response to negative shocks

0.0282
1.36

Persistence:

0.998

Half-life:

374 days