V-Lab
Zhejiang E-P Equipment Co GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, August 25th, 2026
1 Day
27.75%
decreased by 0.25%
1 Week
32.35%
increased by 4.35%
1 Month
35.45%
increased by 7.45%
Analysis last updated: Tuesday, August 25, 2026 at 06:05 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 24, 2024 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 2 trading days, meaning a shock loses half its impact after approximately 2 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.8213 | 12.50*** |
α ARCH Response to squared shocks | 0.2680 | 8.53*** |
β GARCH Volatility persistence | 0.3522 | 9.61*** |
γ leverage Additional response to negative shocks | 0.0718 | 1.13 |
Persistence:
0.656
Half-life:
2 days
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