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V-Lab
V-Lab

Boston Scientific Corp Asy. MEM Volatility Analysis

Volatility prediction for Monday, September 14th, 2026

1 Day

48.00%

decreased by 2.23%

1 Week

47.88%

decreased by 2.35%

1 Month

47.41%

decreased by 2.82%

Analysis last updated: Friday, September 11, 2026 at 11:49 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Boston Scientific Corp AMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 20, 1992 to Sep 11, 2026

Model Insight

With persistence 0.990, volatility shocks have a half-life of 72 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 52% more than positive returns

μ

AMEM Model

Tap to view equation

High persistence: persistence 0.990, shock half-life ~72 daysLeverage: Negative returns increase volatility 52% more than positive returns
ParamValuet-stat
ωconst0.0637
4.80***
αARCH0.0860
7.69***
βGARCH0.8821
105.90***
γleverage0.0446
2.12**

0.990

Persistence

72d

Half-life
μ

AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0637
4.80***
α

ARCH

Response to squared shocks

0.0860
7.69***
β

GARCH

Volatility persistence

0.8821
105.90***
γ

leverage

Additional response to negative shocks

0.0446
2.12**

Persistence:

0.990

Half-life:

72 days