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V-Lab

Nexi S.P.A. Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

9.65%

decreased by 6.57%

1 Week

9.42%

decreased by 6.80%

1 Month

8.56%

decreased by 7.66%

Analysis last updated: Saturday, August 22, 2026 at 08:30 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Nexi S.P.A. S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 6, 2019 to Aug 21, 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 28 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

30.5920
α

ARCH

Response to squared shocks

0.6243
β

GARCH

Volatility persistence

0.3509
γi Spline Coefficients
K=10
γ15,329.3812
γ2-7,763.6775
γ32,493.2351
γ4434.2761
γ5-670.0637
γ6428.9095
γ7-669.3696
γ8477.9596
γ9-64.6525
γ10114.1509

Persistence:

0.975

Half-life:

28 days