V-Lab
Chegg Inc GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
106.10%
increased by 58.44%
1 Week
104.94%
increased by 57.28%
1 Month
102.39%
increased by 54.73%
Analysis last updated: Friday, August 21, 2026 at 10:32 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 13, 2013 to Aug 21, 2026Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 111% 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
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 3.9536 | 12.75*** |
α ARCH Response to squared shocks | 0.5267 | 8.07*** |
β GARCH Volatility persistence | 0.5114 | 25.88*** |
γ leverage Additional response to negative shocks | -0.2771 | -3.30*** |
Persistence:
0.900
Half-life:
7 days
Other GJR-GARCH Analyses on Equities