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V-Lab

FTSE 100 Implied Volatility Index 30 Days Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Friday, July 10th, 2026

1 Day

129.20%

decreased by 3.62%

1 Week

122.14%

decreased by 10.68%

1 Month

111.09%

decreased by 21.73%

Analysis last updated: Friday, July 10, 2026 at 08:38 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of FTSE 100 Implied Volatility Index 30 Days S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 2000 to Apr 2, 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 3 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.8898
14.63***
α

ARCH

Response to squared shocks

0.1474
6.21***
β

GARCH

Volatility persistence

0.6713
15.21***
γi Spline Coefficients
K=3
γ10.0121
2.92***
γ2-0.0225
-3.59***
γ30.0140
4.25***

Persistence:

0.819

Half-life:

3 days