Jiawei Renewable Energy Co Ltd APARCH Volatility Analysis
Volatility prediction for Tuesday, July 14th, 2026
1 Day
55.64%
1 Week
56.13%
1 Month
57.71%
Analysis last updated: Tuesday, July 14, 2026 at 06:22 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 11, 2012 to Jul 10, 2026Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 56% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets. The volatility power δ = 1.59 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.
APARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2899 | 8.19*** |
α ARCH Response to squared shocks | 0.0957 | 17.85*** |
β GARCH Volatility persistence | 0.8828 | 141.76*** |
γ leverage Additional response to negative shocks | -0.1399 | -5.65*** |
δ power Transformation power | 1.5850 | 18.58*** |
Persistence:
0.968
Half-life:
21 days
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