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Merck & Co Inc EGARCH Volatility Analysis

Volatility prediction for Tuesday, October 27th, 2026

1 Day

31.62%

increased by 2.55%

1 Week

31.55%

increased by 2.48%

1 Month

31.33%

increased by 2.26%

Analysis last updated: Monday, October 26, 2026 at 09:46 PM UTC

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Date Range:

from

10/26/2024

to

10/26/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Merck & Co Inc EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Oct 23, 2026

Model Insight

This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.

σ

EGARCH Model

Tap to view equation

Leverage: volatility responds almost entirely to negative shocks
ParamValuet-stat
ωconst0.0224
1.81*
αARCH0.0748
4.50***
βGARCH0.9822
182.60***
γleverage-0.0527
-4.16***

0.982

Persistence

39d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0224
1.81*
α

ARCH

Response to squared shocks

0.0748
4.50***
β

GARCH

Volatility persistence

0.9822
182.60***
γ

leverage

Additional response to negative shocks

-0.0527
-4.16***

Persistence:

0.982

Half-life:

39 days