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V-Lab

K+S AG Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

30.18%

decreased by 0.62%

1 Week

30.47%

decreased by 0.33%

1 Month

31.22%

increased by 0.42%

Analysis last updated: Sunday, July 26, 2026 at 12:09 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of K+S AG S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Jul 24, 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 10 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.2378
7.00***
α

ARCH

Response to squared shocks

0.0865
7.36***
β

GARCH

Volatility persistence

0.8476
50.88***
γi Spline Coefficients
K=10
γ10.0278
0.47
γ20.0024
0.02
γ3-0.1174
-1.75*
γ40.2111
3.61***
γ5-0.2031
-3.92***
γ60.1102
2.13**
γ7-0.0661
-0.85
γ80.1019
1.30
γ9-0.1461
-2.45**
γ100.1145
2.79***

Persistence:

0.934

Half-life:

10 days