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V-Lab

Johnson & Johnson MEM Volatility Analysis

Volatility prediction for Wednesday, September 16th, 2026

1 Day

21.71%

increased by 1.37%

1 Week

21.77%

increased by 1.43%

1 Month

22.03%

increased by 1.69%

Analysis last updated: Tuesday, September 15, 2026 at 09:29 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Johnson & Johnson MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 59 trading days, meaning a shock loses half its impact after approximately 59 days.

μ

MEM Model

Tap to view equation

Shock decay: Shocks decay with a 59-day half-life
ParamValuet-stat
ωconst0.0277
2.40**
αARCH0.1923
12.99***
βGARCH0.7961
73.22***

0.988

Persistence

59d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0277
2.40**
α

ARCH

Response to squared shocks

0.1923
12.99***
β

GARCH

Volatility persistence

0.7961
73.22***

Persistence:

0.988

Half-life:

59 days