Merck & Co Inc Asy. MEM Volatility Analysis
Volatility prediction for Monday, October 12th, 2026
1 Day
30.39%
increased by 1.44%
1 Week
30.28%
increased by 1.33%
1 Month
29.87%
increased by 0.92%
Analysis last updated: Saturday, October 10, 2026 at 02:00 AM UTC
Press Delete or Backspace to remove this series.
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Oct 9, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 58% more than equivalent positive returns.
μ
AMEM Model
Tap to view equation
Leverage: Negative returns increase volatility 58% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0626 | 7.64*** |
| αARCH | 0.1136 | 9.14*** |
| βGARCH | 0.8328 | 79.23*** |
| γleverage | 0.0654 | 3.05*** |
0.979
Persistence33d
Half-lifeμ
AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0626 | 7.64*** |
α ARCH Response to squared shocks | 0.1136 | 9.14*** |
β GARCH Volatility persistence | 0.8328 | 79.23*** |
γ leverage Additional response to negative shocks | 0.0654 | 3.05*** |
Persistence:
0.979
Half-life:
33 days
Other Merck & Co Inc Analyses
Other Asy. MEM Analyses on Equities