V-Lab
Boston Scientific Corp MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 18th, 2026
1 Day
42.55%
decreased by 0.99%
1 Week
42.04%
decreased by 1.50%
1 Month
40.60%
decreased by 2.94%
Analysis last updated: Thursday, September 17, 2026 at 09:40 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 20, 1992 to Sep 11, 2026Model Insight
This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.
σ
MF2-GARCH Model
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Leverage: volatility responds almost entirely to negative shocks
| Param | Value | t-stat |
|---|---|---|
| mwindow | 61 | |
| αARCH | 0.0000 | 0.00 |
| βGARCH | 0.9156 | 60.96*** |
| γleverage | 0.0748 | 5.61*** |
| λ₁tau intercept | 0.0056 | 1.08 |
| λ₂forecast adj. | 0.0100 | 2.88*** |
| λ₃tau persistence | 0.9890 | 263.74*** |
0.953
Persistence14d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 61 | |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.9156 | 60.96*** |
γ leverage Additional response to negative shocks | 0.0748 | 5.61*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0056 | 1.08 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0100 | 2.88*** |
λ₃ tau persistence Long-term factor persistence | 0.9890 | 263.74*** |
Persistence:
0.953
Half-life:
14 days
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