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V-Lab

Zhejiang Jianfeng Group GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

34.99%

decreased by 0.04%

1 Week

35.45%

increased by 0.42%

1 Month

37.13%

increased by 2.10%

Analysis last updated: Saturday, August 22, 2026 at 06:38 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Zhejiang Jianfeng Group GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 28, 1993 to Aug 21, 2026

Model Insight

With persistence 0.992, volatility shocks have a half-life of 88 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1026
16.45***
α

ARCH

Response to squared shocks

0.0839
25.31***
β

GARCH

Volatility persistence

0.9116
357.65***
γ

leverage

Additional response to negative shocks

-0.0068
-1.07

Persistence:

0.992

Half-life:

88 days