CBOE S&P 500 9-Day Volatility Index MEM Volatility Analysis
Volatility prediction for Tuesday, April 21st, 2026
1 Day
158.43%
decreased by 4.33%
1 Week
162.76%
decreased by 0.00%
1 Month
176.95%
increased by 14.19%
Analysis last updated: Tuesday, April 21, 2026 at 11:40 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 5.0000 | 5.74 | |
| 0.1363 | 22.20 | |
| 0.8418 | 162.63 |
Estimation Period:
Oct 4, 2013 to Apr 17, 2026
Oct 4, 2013 to Apr 17, 2026
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