V-Lab
Shenzhen Zhaowei Machinery & Electronic Co Ltd EGARCH Volatility Analysis
Volatility prediction for Wednesday, August 5th, 2026
1 Day
81.76%
decreased by 2.23%
1 Week
79.80%
decreased by 4.19%
1 Month
75.63%
decreased by 8.36%
Analysis last updated: Wednesday, August 5, 2026 at 06:50 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 9, 2026 to Jul 31, 2026Model Insight
The leverage effect is captured by the negative gamma (gamma = -0.2202), confirming that negative shocks increase volatility more than positive shocks of equal magnitude.
σ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2892 | 0.80 |
α ARCH Response to squared shocks | -0.0587 | -2.01** |
β GARCH Volatility persistence | 0.9035 | 12.97*** |
γ leverage Additional response to negative shocks | -0.2202 | -4.80*** |
Persistence:
0.904
Half-life:
7 days
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