V-Lab
Motorola Solutions Inc GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
29.33%
decreased by 0.30%
1 Week
29.42%
decreased by 0.21%
1 Month
29.78%
increased by 0.15%
Analysis last updated: Friday, August 21, 2026 at 10:56 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 21, 2026Model Insight
With persistence 0.996, volatility shocks have a half-life of 197 trading days (~0.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Leverage: Negative returns increase volatility 183% more than positive returns
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0229 | 12.14*** |
α ARCH Response to squared shocks | 0.0175 | 17.20*** |
β GARCH Volatility persistence | 0.9630 | 843.96*** |
γ leverage Additional response to negative shocks | 0.0320 | 12.40*** |
Persistence:
0.996
Half-life:
197 days
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