V-Lab
Inner Mongolia Shuangxin Environment-Friendly Material Co Ltd APARCH Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
28.64%
decreased by 2.23%
1 Week
33.13%
increased by 2.26%
1 Month
41.68%
increased by 10.81%
Analysis last updated: Tuesday, September 8, 2026 at 07:40 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 30, 2025 to Sep 4, 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
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Shock decay: Shocks decay with a 8-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0000 | 0.67 |
| αARCH | 0.2895 | 3.27*** |
| βGARCH | 0.6093 | 4.23*** |
| γleverage | 0.0517 | 0.26 |
| δpower | 2.1297 | 1.48 |
0.914
Persistence8d
Half-lifeσ
APARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0000 | 0.67 |
α ARCH Response to squared shocks | 0.2895 | 3.27*** |
β GARCH Volatility persistence | 0.6093 | 4.23*** |
γ leverage Additional response to negative shocks | 0.0517 | 0.26 |
δ power Transformation power | 2.1297 | 1.48 |
Persistence:
0.914
Half-life:
8 days
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