CBOE Gold Volatility Index APARCH Volatility Analysis
Volatility prediction for Thursday, July 16th, 2026
1 Day
95.40%
1 Week
93.74%
1 Month
90.48%
Analysis last updated: Thursday, July 16, 2026 at 12:05 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 3, 2008 to Jul 10, 2026Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 155% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets. The volatility power δ = 1.24 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.
APARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0000 | 7.87*** |
α ARCH Response to squared shocks | 0.1520 | 16.54*** |
β GARCH Volatility persistence | 0.7520 | 58.73*** |
γ leverage Additional response to negative shocks | -0.3612 | -7.48*** |
δ power Transformation power | 1.2355 | 20.87*** |
Persistence:
0.879
Half-life:
5 days
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