V-Lab
Softbank Group Corp MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
68.69%
decreased by 5.22%
1 Week
68.55%
decreased by 5.36%
1 Month
67.79%
decreased by 6.12%
Analysis last updated: Friday, September 11, 2026 at 06:57 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Feb 16, 2000 to Sep 4, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 95% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 95% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 41 | |
| αARCH | 0.1074 | 5.26*** |
| βGARCH | 0.6344 | 17.69*** |
| γleverage | 0.1019 | 3.34*** |
| λ₁tau intercept | 0.3661 | 1.17 |
| λ₂forecast adj. | 0.1881 | 1.46 |
| λ₃tau persistence | 0.7701 | 4.77*** |
0.793
Persistence3d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 41 | |
α ARCH Response to squared shocks | 0.1074 | 5.26*** |
β GARCH Volatility persistence | 0.6344 | 17.69*** |
γ leverage Additional response to negative shocks | 0.1019 | 3.34*** |
λ₁ tau intercept Baseline long-term coefficient | 0.3661 | 1.17 |
λ₂ forecast adj. Forecast performance sensitivity | 0.1881 | 1.46 |
λ₃ tau persistence Long-term factor persistence | 0.7701 | 4.77*** |
Persistence:
0.793
Half-life:
3 days
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