V-Lab
Zhejiang Walrus New Material Co Ltd APARCH Volatility Analysis
Volatility prediction for Friday, September 4th, 2026
1 Day
35.43%
decreased by 0.59%
1 Week
37.12%
increased by 1.10%
1 Month
40.97%
increased by 4.95%
Analysis last updated: Friday, September 4, 2026 at 06:27 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 8, 2020 to Aug 28, 2026Model Insight
Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days.
σ
APARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6185 | 1.18 |
α ARCH Response to squared shocks | 0.1058 | 2.77*** |
β GARCH Volatility persistence | 0.8164 | 17.16*** |
γ leverage Additional response to negative shocks | 0.0121 | 0.13 |
δ power Transformation power | 1.9308 | 2.78*** |
Persistence:
0.920
Half-life:
8 days
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