V-Lab
CVS Health Corp Asy. MEM Volatility Analysis
Volatility prediction for Thursday, September 24th, 2026
1 Day
30.31%
decreased by 1.15%
1 Week
30.31%
decreased by 1.15%
1 Month
30.32%
decreased by 1.14%
Analysis last updated: Wednesday, September 23, 2026 at 09:36 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 18, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 55% more than equivalent positive returns.
μ
AMEM Model
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Leverage: Negative returns increase volatility 55% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0475 | 6.53*** |
| αARCH | 0.0907 | 8.69*** |
| βGARCH | 0.8716 | 110.70*** |
| γleverage | 0.0495 | 2.60*** |
0.987
Persistence53d
Half-lifeμ
AMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0475 | 6.53*** |
α ARCH Response to squared shocks | 0.0907 | 8.69*** |
β GARCH Volatility persistence | 0.8716 | 110.70*** |
γ leverage Additional response to negative shocks | 0.0495 | 2.60*** |
Persistence:
0.987
Half-life:
53 days
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