Hangzhou Radical Energy Saving Technology Co Ltd APARCH Volatility Analysis
Volatility prediction for Tuesday, July 14th, 2026
1 Day
73.47%
increased by 4.72%
1 Week
73.37%
increased by 4.62%
1 Month
73.05%
increased by 4.30%
Analysis last updated: Tuesday, July 14, 2026 at 06:17 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 16, 2017 to Jul 10, 2026Model Insight
Volatility shocks decay with a half-life of 26 trading days, meaning a shock loses half its impact after approximately 26 days. The volatility power δ = 0.91 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.
σ
APARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1035 | 7.20*** |
α ARCH Response to squared shocks | 0.1281 | 17.27*** |
β GARCH Volatility persistence | 0.8720 | 100.42*** |
γ leverage Additional response to negative shocks | -0.0655 | -1.65* |
δ power Transformation power | 0.9106 | 12.07*** |
Persistence:
0.974
Half-life:
26 days
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