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V-Lab

CVS Health Corp GJR-GARCH Volatility Analysis

Volatility prediction for Thursday, August 6th, 2026

1 Day

34.47%

increased by 8.74%

1 Week

34.47%

increased by 8.74%

1 Month

34.50%

increased by 8.77%

Analysis last updated: Wednesday, August 5, 2026 at 09:40 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CVS Health Corp GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Jul 31, 2026

Model Insight

With persistence 0.991, volatility shocks have a half-life of 77 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 313% more than positive returns

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0430
12.99***
α

ARCH

Response to squared shocks

0.0196
8.74***
β

GARCH

Volatility persistence

0.9407
369.20***
γ

leverage

Additional response to negative shocks

0.0614
14.52***

Persistence:

0.991

Half-life:

77 days