V-Lab
COMSYS Holdings Corp GJR-GARCH Volatility Analysis
Volatility prediction for Thursday, September 24th, 2026
1 Day
27.31%
increased by 2.65%
1 Week
27.75%
increased by 3.09%
1 Month
29.29%
increased by 4.63%
Analysis last updated: Saturday, September 19, 2026 at 10:36 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 1990 to Sep 18, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 175% more than equivalent positive returns.
σ
GJR-GARCH Model
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Leverage: Negative returns increase volatility 175% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0870 | 4.19*** |
| αARCH | 0.0488 | 4.90*** |
| βGARCH | 0.8954 | 88.81*** |
| γleverage | 0.0853 | 3.13*** |
0.987
Persistence53d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0870 | 4.19*** |
α ARCH Response to squared shocks | 0.0488 | 4.90*** |
β GARCH Volatility persistence | 0.8954 | 88.81*** |
γ leverage Additional response to negative shocks | 0.0853 | 3.13*** |
Persistence:
0.987
Half-life:
53 days
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