V-Lab
Hongxing Coldchain Hunan Co Ltd MEM Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
22.06%
decreased by 1.31%
1 Week
22.32%
decreased by 1.05%
1 Month
22.97%
decreased by 0.40%
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
Volatility shocks decay with a half-life of 9 trading days, meaning a shock loses half its impact after approximately 9 days.
μ
MEM Model
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Shock decay: Shocks decay with a 9-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.1667 | 4.77*** |
| αARCH | 0.3950 | 8.47*** |
| βGARCH | 0.5314 | 21.10*** |
0.926
Persistence9d
Half-lifeμ
MEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1667 | 4.77*** |
α ARCH Response to squared shocks | 0.3950 | 8.47*** |
β GARCH Volatility persistence | 0.5314 | 21.10*** |
Persistence:
0.926
Half-life:
9 days
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