Boston Scientific Corp MF2-GARCH Volatility Analysis
Volatility prediction for Wednesday, October 21st, 2026
1 Day
30.65%
decreased by 0.34%
1 Week
31.13%
increased by 0.14%
1 Month
32.52%
increased by 1.53%
Analysis last updated: Tuesday, October 20, 2026 at 10:21 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 20, 1992 to Oct 16, 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 | 0.0001 | 0.01 |
| βGARCH | 0.9159 | 61.48*** |
| γleverage | 0.0745 | 5.61*** |
| λ₁tau intercept | 0.0054 | 1.07 |
| λ₂forecast adj. | 0.0097 | 2.89*** |
| λ₃tau persistence | 0.9894 | 273.61*** |
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 | 0.0001 | 0.01 |
β GARCH Volatility persistence | 0.9159 | 61.48*** |
γ leverage Additional response to negative shocks | 0.0745 | 5.61*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0054 | 1.07 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0097 | 2.89*** |
λ₃ tau persistence Long-term factor persistence | 0.9894 | 273.61*** |
Persistence:
0.953
Half-life:
14 days
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