AT&T Inc AGARCH Volatility Analysis
Volatility prediction for Monday, April 20th, 2026
1 Day
27.38%
decreased by 1.06%
1 Week
27.34%
decreased by 1.10%
1 Month
27.17%
decreased by 1.27%
Analysis last updated: Friday, April 17, 2026 at 10:54 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0360 | 19.23 | |
| 0.0690 | 43.29 | |
| 0.9159 | 556.13 | |
| 0.2306 | 7.10 |
Estimation Period:
Jan 2, 1990 to Apr 17, 2026
Jan 2, 1990 to Apr 17, 2026
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