V-Lab
Luna Innovations Inc GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
51.75%
decreased by 0.59%
1 Week
54.60%
increased by 2.26%
1 Month
63.60%
increased by 11.26%
Analysis last updated: Saturday, July 25, 2026 at 09:22 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 2, 2006 to Jul 24, 2026Model Insight
Volatility shocks decay with a half-life of 35 trading days, meaning a shock loses half its impact after approximately 35 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8230 | 10.15*** |
α ARCH Response to squared shocks | 0.0690 | 10.54*** |
β GARCH Volatility persistence | 0.8977 | 155.13*** |
γ leverage Additional response to negative shocks | 0.0270 | 1.94* |
Persistence:
0.980
Half-life:
35 days
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