V-Lab
Chevron Corp GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
21.92%
decreased by 0.66%
1 Week
22.02%
decreased by 0.56%
1 Month
22.40%
decreased by 0.18%
Analysis last updated: Friday, August 21, 2026 at 10:35 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 21, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 177% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0421 | 20.66*** |
α ARCH Response to squared shocks | 0.0342 | 16.60*** |
β GARCH Volatility persistence | 0.9182 | 457.51*** |
γ leverage Additional response to negative shocks | 0.0608 | 12.82*** |
Persistence:
0.983
Half-life:
40 days
Other GJR-GARCH Analyses on Equities