Skip to main content
V-Lab

KBR Inc Spline-GARCH Volatility Analysis

Volatility prediction for Thursday, August 6th, 2026

1 Day

45.56%

increased by 1.60%

1 Week

44.61%

increased by 0.65%

1 Month

41.82%

decreased by 2.14%

Analysis last updated: Wednesday, August 5, 2026 at 09:44 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of KBR Inc SGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 16, 2006 to Jul 31, 2026

Model Insight

This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 12 trading days.

τ

Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.2624
10.62***
α

ARCH

Response to squared shocks

0.0825
5.10***
β

GARCH

Volatility persistence

0.8616
35.82***
γi Spline Coefficients
K=1
γ10.0026
1.11

Persistence:

0.944

Half-life:

12 days