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V-Lab

Johnson & Johnson AGARCH Volatility Analysis

Volatility prediction for Monday, July 20th, 2026

1 Day

27.48%

decreased by 1.24%

1 Week

27.38%

decreased by 1.34%

1 Month

27.01%

decreased by 1.71%

Analysis last updated: Friday, July 17, 2026 at 11:02 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Johnson & Johnson AGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Jul 17, 2026

Model Insight

The news-impact curve is shifted (γ = 0.38) so that negative returns raise next-day volatility more than positive returns of the same size. The gap is largest for small shocks and narrows for larger ones.

σ

AGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0170
11.58***
α

ARCH

Response to squared shocks

0.0785
44.10***
β

GARCH

Volatility persistence

0.9084
457.15***
γ

leverage

Additional response to negative shocks

0.3817
17.80***

Persistence:

0.987

Half-life:

52 days