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V-Lab

Jiangyin Zhongnan Heavy Industries Co Ltd Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Monday, August 17th, 2026

1 Day

44.46%

increased by 3.34%

1 Week

44.92%

increased by 3.80%

1 Month

45.81%

increased by 4.69%

Analysis last updated: Saturday, August 15, 2026 at 07:16 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Jiangyin Zhongnan Heavy Industries Co Ltd S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 13, 2010 to Aug 14, 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 6 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.9013
4.16***
α

ARCH

Response to squared shocks

0.1584
4.03***
β

GARCH

Volatility persistence

0.7252
13.03***
γi Spline Coefficients
K=8
γ1-0.2634
-0.95
γ20.5902
1.45
γ3-0.8183
-2.78***
γ40.9129
2.81***
γ5-0.5644
-2.10**
γ6-0.0447
-0.20
γ70.5123
2.41**
γ8-0.4649
-3.18***

Persistence:

0.884

Half-life:

6 days