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V-Lab
V-Lab

Spenda Ltd Spline-GARCH Volatility Analysis

Volatility prediction for Friday, September 4th, 2026

1 Day

413.31%

decreased by 2.71%

1 Week

416.76%

increased by 0.74%

1 Month

427.38%

increased by 11.36%

Analysis last updated: Friday, September 4, 2026 at 05:54 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Spenda Ltd SGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 29, 2002 to Aug 28, 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 18 trading days.

τ

Spline-GARCH Model

Tap to view equation

Time-varying baseline: volatility reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst1.0873
4.76***
αARCH0.0765
6.88***
βGARCH0.8857
37.09***
γi Spline Coefficients
K=10
γ10.2109
0.82
γ20.4246
0.98
γ3-1.1450
-3.17***
γ41.0860
3.74***
γ5-1.6237
-4.68***
γ61.8669
4.14***
γ7-1.3624
-2.47**
γ81.0727
2.18**
γ9-0.8114
-2.32**
γ100.9270
2.58***

0.962

Persistence

18d

Half-life
τ

Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0873
4.76***
α

ARCH

Response to squared shocks

0.0765
6.88***
β

GARCH

Volatility persistence

0.8857
37.09***
γi Spline Coefficients
K=10
γ10.2109
0.82
γ20.4246
0.98
γ3-1.1450
-3.17***
γ41.0860
3.74***
γ5-1.6237
-4.68***
γ61.8669
4.14***
γ7-1.3624
-2.47**
γ81.0727
2.18**
γ9-0.8114
-2.32**
γ100.9270
2.58***

Persistence:

0.962

Half-life:

18 days