Xi'An Peri Power Semiconductor Converting Technology Co Ltd EGARCH Volatility Analysis
Volatility prediction for Tuesday, July 14th, 2026
1 Day
68.36%
increased by 6.42%
1 Week
67.78%
increased by 5.84%
1 Month
66.17%
increased by 4.23%
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 7, 2020 to Jul 10, 2026Model Insight
Volatility shocks decay with a half-life of 12 trading days, meaning a shock loses half its impact after approximately 12 days.
σ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1535 | 8.92*** |
α ARCH Response to squared shocks | 0.1723 | 13.48*** |
β GARCH Volatility persistence | 0.9443 | 148.59*** |
γ leverage Additional response to negative shocks | 0.0238 | 1.75* |
Persistence:
0.944
Half-life:
12 days
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