CBOE S&P 500 One-Year Volatility Index Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Wednesday, April 15th, 2026
1 Day
30.93%
decreased by 3.73%
1 Week
33.01%
decreased by 1.65%
1 Month
36.59%
increased by 1.93%
Analysis last updated: Wednesday, April 15, 2026 at 11:31 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 1.1917 | 8.75 | |
| 0.2403 | 7.27 | |
| 0.6307 | 16.31 | |
| 0.0010 | 1.52 |
Estimation Period:
Jan 3, 2007 to Apr 10, 2026
Jan 3, 2007 to Apr 10, 2026
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