Skip to main content
V-Lab
V-Lab

Merck & Co Inc GARCH Volatility Analysis

Volatility prediction for Monday, October 5th, 2026

1 Day

26.57%

decreased by 0.59%

1 Week

26.54%

decreased by 0.62%

1 Month

26.46%

decreased by 0.70%

Analysis last updated: Friday, October 2, 2026 at 11:48 PM UTC

Press Delete or Backspace to remove this series.
Date Range:

from

10/02/2024

to

10/02/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Merck & Co Inc GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Oct 2, 2026

Model Insight

Volatility shocks decay with a half-life of 29 trading days, meaning a shock loses half its impact after approximately 29 days.

σ

GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 29-day half-life
ParamValuet-stat
ωconst0.0635
2.97***
αARCH0.0431
6.36***
βGARCH0.9333
88.05***

0.976

Persistence

29d

Half-life
σ

GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0635
2.97***
α

ARCH

Response to squared shocks

0.0431
6.36***
β

GARCH

Volatility persistence

0.9333
88.05***

Persistence:

0.976

Half-life:

29 days