Skip to main content
V-Lab
V-Lab

Chinyang Poly Urethane Co Ltd Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

51.47%

decreased by 6.13%

1 Week

53.54%

decreased by 4.06%

1 Month

57.38%

decreased by 0.22%

Analysis last updated: Friday, September 11, 2026 at 08:29 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Chinyang Poly Urethane Co Ltd S0GARCH

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

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 5 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

Time-varying baseline: volatility reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst0.7568
7.00***
αARCH0.2144
8.50***
βGARCH0.6649
18.42***
γi Spline Coefficients
K=10
γ1-0.0290
-0.63
γ20.0938
1.38
γ3-0.2182
-4.26***
γ40.2342
3.79***
γ5-0.0038
-0.06
γ6-0.2626
-4.43***
γ70.3773
7.15***
γ8-0.2602
-4.53***
γ90.0616
0.91
γ100.0067
0.13

0.879

Persistence

5d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.7568
7.00***
α

ARCH

Response to squared shocks

0.2144
8.50***
β

GARCH

Volatility persistence

0.6649
18.42***
γi Spline Coefficients
K=10
γ1-0.0290
-0.63
γ20.0938
1.38
γ3-0.2182
-4.26***
γ40.2342
3.79***
γ5-0.0038
-0.06
γ6-0.2626
-4.43***
γ70.3773
7.15***
γ8-0.2602
-4.53***
γ90.0616
0.91
γ100.0067
0.13

Persistence:

0.879

Half-life:

5 days