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V-Lab
V-Lab

Capgemini Se Spline-GARCH Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

39.56%

increased by 0.29%

1 Week

39.50%

increased by 0.23%

1 Month

39.30%

increased by 0.03%

Analysis last updated: Tuesday, September 8, 2026 at 08:05 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Capgemini Se SGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 16, 2004 to Sep 4, 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 38 trading days.

τ

Spline-GARCH Model

Tap to view equation

Time-varying baseline: volatility reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst1.3448
10.16***
αARCH0.0395
4.69***
βGARCH0.9422
80.41***
γi Spline Coefficients
K=1
γ10.0045
2.93***

0.982

Persistence

38d

Half-life
τ

Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.3448
10.16***
α

ARCH

Response to squared shocks

0.0395
4.69***
β

GARCH

Volatility persistence

0.9422
80.41***
γi Spline Coefficients
K=1
γ10.0045
2.93***

Persistence:

0.982

Half-life:

38 days