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V-Lab

Chegg Inc GJR-GARCH Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

91.24%

decreased by 30.70%

1 Week

93.41%

decreased by 28.53%

1 Month

98.04%

decreased by 23.90%

Analysis last updated: Friday, July 24, 2026 at 10:24 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of Chegg Inc GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 13, 2013 to Jul 24, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 100% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

4.1183
12.89***
α

ARCH

Response to squared shocks

0.5571
8.15***
β

GARCH

Volatility persistence

0.4839
23.86***
γ

leverage

Additional response to negative shocks

-0.2783
-3.12***

Persistence:

0.902

Half-life:

7 days