V-Lab
Hongxing Coldchain Hunan Co Ltd Asy. Power MEM Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
20.02%
1 Week
17.86%
1 Month
15.79%
Analysis last updated: Tuesday, September 8, 2026 at 08:15 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 13, 2026 to Aug 14, 2026Model Insight
This asset exhibits a modest leverage effect: negative returns increase next-day volatility 33% more than equivalent positive returns. The volatility power δ = 0.52 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.
APMEM Model
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| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.2622 | 9.11*** |
| αARCH | 0.4001 | 16.46*** |
| βGARCH | 0.4039 | 12.63*** |
| γleverage | 0.2646 | 6.88*** |
| δpower | 0.5209 | 3.26*** |
0.729
Persistence2d
Half-lifeAPMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2622 | 9.11*** |
α ARCH Response to squared shocks | 0.4001 | 16.46*** |
β GARCH Volatility persistence | 0.4039 | 12.63*** |
γ leverage Additional response to negative shocks | 0.2646 | 6.88*** |
δ power Transformation power | 0.5209 | 3.26*** |
Persistence:
0.729
Half-life:
2 days
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