V-Lab
International Business Machines Corp MF2-GARCH Volatility Analysis
Volatility prediction for Monday, September 14th, 2026
1 Day
49.57%
increased by 0.21%
1 Week
51.50%
increased by 2.14%
1 Month
55.22%
increased by 5.86%
Analysis last updated: Saturday, September 12, 2026 at 12:13 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 11, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 346% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 346% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 66 | |
| αARCH | 0.0322 | 2.99*** |
| βGARCH | 0.7905 | 28.29*** |
| γleverage | 0.1111 | 4.85*** |
| λ₁tau intercept | 0.0206 | 1.55 |
| λ₂forecast adj. | 0.0408 | 2.32** |
| λ₃tau persistence | 0.9533 | 48.12*** |
0.878
Persistence5d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 66 | |
α ARCH Response to squared shocks | 0.0322 | 2.99*** |
β GARCH Volatility persistence | 0.7905 | 28.29*** |
γ leverage Additional response to negative shocks | 0.1111 | 4.85*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0206 | 1.55 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0408 | 2.32** |
λ₃ tau persistence Long-term factor persistence | 0.9533 | 48.12*** |
Persistence:
0.878
Half-life:
5 days
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