V-Lab
Bella Casa Fashion & Retail MF2-GARCH Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
45.30%
increased by 1.17%
1 Week
47.53%
increased by 3.40%
1 Month
49.27%
increased by 5.14%
Analysis last updated: Saturday, September 19, 2026 at 09:46 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 15, 2015 to Sep 18, 2026Model Insight
Volatility shocks decay with a half-life of 3 trading days, meaning a shock loses half its impact after approximately 3 days.
σ
MF2-GARCH Model
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Shock decay: Shocks decay with a 3-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 21 | |
| αARCH | 0.1167 | 2.71*** |
| βGARCH | 0.6844 | 6.60*** |
| γleverage | 0.0139 | 0.25 |
| λ₁tau intercept | 7.0030 | 1.25 |
| λ₂forecast adj. | 0.2784 | 1.21 |
| λ₃tau persistence | 0.0000 | 0.00 |
0.808
Persistence3d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.1167 | 2.71*** |
β GARCH Volatility persistence | 0.6844 | 6.60*** |
γ leverage Additional response to negative shocks | 0.0139 | 0.25 |
λ₁ tau intercept Baseline long-term coefficient | 7.0030 | 1.25 |
λ₂ forecast adj. Forecast performance sensitivity | 0.2784 | 1.21 |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
0.808
Half-life:
3 days
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