Skip to main content
V-Lab

Merck & Co Inc Asy. MEM Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

26.30%

decreased by 1.10%

1 Week

26.34%

decreased by 1.06%

1 Month

26.51%

decreased by 0.89%

Analysis last updated: Friday, September 4, 2026 at 11:03 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Merck & Co Inc AMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 4, 2026

Model 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

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0629
7.64***
α

ARCH

Response to squared shocks

0.1136
9.12***
β

GARCH

Volatility persistence

0.8323
78.89***
γ

leverage

Additional response to negative shocks

0.0659
3.07***

Persistence:

0.979

Half-life:

33 days