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V-Lab
V-Lab

Bitcoin Group SE MF2-GARCH Volatility Analysis

Volatility prediction for Monday, September 28th, 2026

1 Day

96.24%

increased by 10.02%

1 Week

85.37%

decreased by 0.85%

1 Month

69.21%

decreased by 17.01%

Analysis last updated: Saturday, September 26, 2026 at 09:19 PM UTC

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Date Range:

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graph of Bitcoin Group SE MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 2, 2019 to Sep 25, 2026

Model Insight

Volatility shocks decay with a half-life of 2 trading days, meaning a shock loses half its impact after approximately 2 days.

σ

MF2-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 2-day half-life
ParamValuet-stat
mwindow76
αARCH0.2225
4.08***
βGARCH0.5173
6.71***
γleverage0.0157
0.24
λ₁tau intercept4.5158
1.31
λ₂forecast adj.0.6321
3.00***
λ₃tau persistence0.0000
0.00

0.748

Persistence

2d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

76
α

ARCH

Response to squared shocks

0.2225
4.08***
β

GARCH

Volatility persistence

0.5173
6.71***
γ

leverage

Additional response to negative shocks

0.0157
0.24
λ₁

tau intercept

Baseline long-term coefficient

4.5158
1.31
λ₂

forecast adj.

Forecast performance sensitivity

0.6321
3.00***
λ₃

tau persistence

Long-term factor persistence

0.0000
0.00

Persistence:

0.748

Half-life:

2 days