CBOE S&P 500 One-Year Volatility Index Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Friday, May 22nd, 2026
1 Day
26.60%
increased by 1.86%
1 Week
29.85%
increased by 5.11%
1 Month
35.16%
increased by 10.42%
Analysis last updated: Friday, May 22, 2026 at 11:30 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 1.2059 | 8.80 | |
| 0.2422 | 7.35 | |
| 0.6297 | 16.39 | |
| 0.0011 | 1.64 |
Estimation Period:
Jan 3, 2007 to May 15, 2026
Jan 3, 2007 to May 15, 2026
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