AT&T Inc APARCH Volatility Analysis
Volatility prediction for Tuesday, April 21st, 2026
1 Day
26.78%
increased by 0.21%
1 Week
26.84%
increased by 0.27%
1 Month
27.07%
increased by 0.50%
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 | |
|---|---|---|
| 0.0272 | 22.09 | |
| 0.0724 | 39.34 | |
| 0.9276 | 484.90 | |
| 0.2336 | 12.18 | |
| 1.1417 | 27.46 |
Estimation Period:
Jan 2, 1990 to Apr 17, 2026
Jan 2, 1990 to Apr 17, 2026
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