V-Lab
KBR Inc MF2-GARCH Volatility Analysis
Volatility prediction for Monday, September 14th, 2026
1 Day
30.06%
decreased by 0.77%
1 Week
30.73%
decreased by 0.10%
1 Month
32.71%
increased by 1.88%
Analysis last updated: Saturday, September 12, 2026 at 12:16 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 16, 2006 to Sep 11, 2026Model Insight
This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.
σ
MF2-GARCH Model
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Leverage: volatility responds almost entirely to negative shocks
| Param | Value | t-stat |
|---|---|---|
| mwindow | 116 | |
| αARCH | 0.0185 | 2.18** |
| βGARCH | 0.8887 | 65.25*** |
| γleverage | 0.1036 | 5.45*** |
| λ₁tau intercept | 5.6421 | 1.01 |
| λ₂forecast adj. | 0.0000 | 0.00 |
| λ₃tau persistence | 0.0000 | 0.00 |
0.959
Persistence17d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 116 | |
α ARCH Response to squared shocks | 0.0185 | 2.18** |
β GARCH Volatility persistence | 0.8887 | 65.25*** |
γ leverage Additional response to negative shocks | 0.1036 | 5.45*** |
λ₁ tau intercept Baseline long-term coefficient | 5.6421 | 1.01 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.00 |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
0.959
Half-life:
17 days
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