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V-Lab

Chinyang Poly Urethane Co Ltd GJR-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

64.99%

decreased by 5.63%

1 Week

65.71%

decreased by 4.91%

1 Month

68.40%

decreased by 2.22%

Analysis last updated: Friday, September 11, 2026 at 08:28 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Chinyang Poly Urethane Co Ltd GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 1990 to Sep 4, 2026

Model Insight

With persistence 0.994, volatility shocks have a half-life of 113 trading days (~0.5 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 0.994, shock half-life ~113 days
ParamValuet-stat
ωconst0.2897
4.49***
αARCH0.1872
6.85***
βGARCH0.8321
51.21***
γleverage-0.0508
-1.16

0.994

Persistence

113d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.2897
4.49***
α

ARCH

Response to squared shocks

0.1872
6.85***
β

GARCH

Volatility persistence

0.8321
51.21***
γ

leverage

Additional response to negative shocks

-0.0508
-1.16

Persistence:

0.994

Half-life:

113 days