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V-Lab

Blom Stock Index MF2-GARCH Volatility Analysis

Volatility prediction for Friday, September 18th, 2026

1 Day

16.89%

increased by 0.78%

1 Week

19.85%

increased by 3.74%

1 Month

26.02%

increased by 9.91%

Analysis last updated: Friday, September 18, 2026 at 10:08 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Blom Stock Index MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 19, 1996 to Sep 10, 2026

Model Insight

Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days.

σ

MF2-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 8-day half-life
ParamValuet-stat
mwindow26
αARCH0.4254
7.38***
βGARCH0.5436
14.97***
γleverage-0.1137
-1.74*
λ₁tau intercept0.0013
1.14
λ₂forecast adj.0.0162
2.21**
λ₃tau persistence0.9838
134.09***

0.912

Persistence

8d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

26
α

ARCH

Response to squared shocks

0.4254
7.38***
β

GARCH

Volatility persistence

0.5436
14.97***
γ

leverage

Additional response to negative shocks

-0.1137
-1.74*
λ₁

tau intercept

Baseline long-term coefficient

0.0013
1.14
λ₂

forecast adj.

Forecast performance sensitivity

0.0162
2.21**
λ₃

tau persistence

Long-term factor persistence

0.9838
134.09***

Persistence:

0.912

Half-life:

8 days