AT&T Inc GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, May 13th, 2026
1 Day
23.71%
decreased by 0.18%
1 Week
23.75%
decreased by 0.14%
1 Month
23.88%
decreased by 0.01%
Analysis last updated: Tuesday, May 12, 2026 at 09:52 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0261 | 20.33 | |
| 0.0417 | 19.82 | |
| 0.9361 | 558.53 | |
| 0.0241 | 5.95 |
Estimation Period:
Jan 2, 1990 to May 8, 2026
Jan 2, 1990 to May 8, 2026
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