V-Lab
CBOE NASDAQ-100 Volatility Index GJR-GARCH Volatility Analysis
Volatility prediction for Friday, July 24th, 2026
1 Day
88.36%
increased by 2.17%
1 Week
88.43%
increased by 2.24%
1 Month
88.60%
increased by 2.41%
Analysis last updated: Friday, July 24, 2026 at 11:37 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 23, 2001 to Jul 17, 2026Model Insight
This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.1027 | 19.14*** |
α ARCH Response to squared shocks | 0.1627 | 22.59*** |
β GARCH Volatility persistence | 0.8516 | 205.79*** |
γ leverage Additional response to negative shocks | -0.1627 | -22.01*** |
Persistence:
0.933
Half-life:
10 days
Other CBOE NASDAQ-100 Volatility Index Analyses
Other GJR-GARCH Analyses on Volatility Indices