CBOE S&P 500 One-Year Volatility Index GAS-GARCH Student T Volatility Analysis
Volatility prediction for Wednesday, April 15th, 2026
1 Day
29.74%
decreased by 4.34%
1 Week
31.30%
decreased by 2.78%
1 Month
35.27%
increased by 1.19%
Analysis last updated: Wednesday, April 15, 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 | |
|---|---|---|
| 6.9775 | 8.76 | |
| 0.1665 | 25.32 | |
| 0.9423 | 141.96 | |
| 4.8967 | 9.59 |
Estimation Period:
Jan 3, 2007 to Apr 10, 2026
Jan 3, 2007 to Apr 10, 2026
Other CBOE S&P 500 One-Year Volatility Index Analyses
Other GAS-GARCH Student T Analyses on Volatility Indices