AT&T Inc MEM Volatility Analysis
Volatility prediction for Tuesday, April 21st, 2026
1 Day
26.20%
decreased by 1.15%
1 Week
26.24%
decreased by 1.11%
1 Month
26.39%
decreased by 0.96%
Analysis last updated: Monday, April 20, 2026 at 09:51 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0470 | 9.89 | |
| 0.1788 | 50.77 | |
| 0.8055 | 283.63 |
Estimation Period:
Jan 2, 1990 to Apr 17, 2026
Jan 2, 1990 to Apr 17, 2026
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