Skip to main content
V-Lab
V-Lab

Wolong New Energy Group Co Ltd Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

28.38%

increased by 0.17%

1 Week

30.25%

increased by 2.04%

1 Month

35.56%

increased by 7.35%

Analysis last updated: Friday, September 11, 2026 at 06:14 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Wolong New Energy Group Co Ltd S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 15, 1999 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 19 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
ωconst1.0450
11.50***
αARCH0.1263
10.51***
βGARCH0.8387
55.20***
γi Spline Coefficients
K=1
γ10.0000
0.07

0.965

Persistence

19d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0450
11.50***
α

ARCH

Response to squared shocks

0.1263
10.51***
β

GARCH

Volatility persistence

0.8387
55.20***
γi Spline Coefficients
K=1
γ10.0000
0.07

Persistence:

0.965

Half-life:

19 days