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V-Lab
V-Lab

Coca-Cola Co/The Spline-GARCH Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

19.58%

decreased by 0.16%

1 Week

20.00%

increased by 0.26%

1 Month

21.20%

increased by 1.46%

Analysis last updated: Friday, September 4, 2026 at 11:00 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Coca-Cola Co/The SGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 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 16 trading days.

τ

Spline-GARCH Model

Tap to view equation

Time-varying baseline: volatility reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst1.2978
7.09***
αARCH0.0678
6.46***
βGARCH0.8892
54.91***
γi Spline Coefficients
K=9
γ1-0.0043
-0.11
γ20.0658
1.14
γ3-0.1665
-3.98***
γ40.1636
3.32***
γ5-0.0493
-0.96
γ6-0.0409
-1.03
γ70.0915
2.57**
γ8-0.1374
-2.63***
γ90.1878
2.31**

0.957

Persistence

16d

Half-life
τ

Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.2978
7.09***
α

ARCH

Response to squared shocks

0.0678
6.46***
β

GARCH

Volatility persistence

0.8892
54.91***
γi Spline Coefficients
K=9
γ1-0.0043
-0.11
γ20.0658
1.14
γ3-0.1665
-3.98***
γ40.1636
3.32***
γ5-0.0493
-0.96
γ6-0.0409
-1.03
γ70.0915
2.57**
γ8-0.1374
-2.63***
γ90.1878
2.31**

Persistence:

0.957

Half-life:

16 days