V-Lab
Para Light Electronics Co GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, August 25th, 2026
1 Day
80.58%
increased by 12.51%
1 Week
77.67%
increased by 9.60%
1 Month
68.49%
increased by 0.42%
Analysis last updated: Tuesday, August 25, 2026 at 08:28 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 3, 2003 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 14 trading days, meaning a shock loses half its impact after approximately 14 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.3240 | 20.18*** |
α ARCH Response to squared shocks | 0.1116 | 19.61*** |
β GARCH Volatility persistence | 0.8424 | 181.29*** |
γ leverage Additional response to negative shocks | -0.0077 | -0.73 |
Persistence:
0.950
Half-life:
14 days
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