S&P MidCap 400 Index MEM Volatility Analysis
Volatility prediction for Tuesday, April 21st, 2026
1 Day
14.99%
decreased by 1.05%
1 Week
15.18%
decreased by 0.86%
1 Month
15.87%
decreased by 0.17%
Analysis last updated: Monday, April 20, 2026 at 11:01 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0246 | 15.39 | |
| 0.2009 | 59.68 | |
| 0.7848 | 258.82 |
Estimation Period:
Jun 3, 1991 to Apr 17, 2026
Jun 3, 1991 to Apr 17, 2026
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