Jiawei Renewable Energy Co Ltd AGARCH Volatility Analysis
Volatility prediction for Tuesday, July 14th, 2026
1 Day
47.44%
decreased by 1.66%
1 Week
48.51%
decreased by 0.59%
1 Month
51.70%
increased by 2.60%
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
The news-impact curve is shifted (γ = -0.79) so that positive returns raise next-day volatility more than negative returns of the same size. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and rare among risky assets.
σ
AGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.4914 | 11.96*** |
α ARCH Response to squared shocks | 0.0912 | 22.25*** |
β GARCH Volatility persistence | 0.8709 | 144.72*** |
γ leverage Additional response to negative shocks | -0.7945 | -6.25*** |
Persistence:
0.962
Half-life:
18 days
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