V-Lab
KBR Inc GJR-GARCH Volatility Analysis
Volatility prediction for Thursday, August 6th, 2026
1 Day
45.54%
increased by 3.89%
1 Week
45.13%
increased by 3.48%
1 Month
43.78%
increased by 2.13%
Analysis last updated: Wednesday, August 5, 2026 at 09:44 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 16, 2006 to Jul 31, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 314% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2150 | 15.64*** |
α ARCH Response to squared shocks | 0.0275 | 9.15*** |
β GARCH Volatility persistence | 0.8939 | 249.69*** |
γ leverage Additional response to negative shocks | 0.0862 | 11.21*** |
Persistence:
0.964
Half-life:
19 days
Other GJR-GARCH Analyses on Equities