AT&T Inc Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Monday, October 27th, 2025:28.79% (+0.37%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 0.9117 | 7.42 | |
| 0.0728 | 8.75 | |
| 0.8793 | 65.24 | |
| 0.0254 | 1.07 | |
| 0.0003 | 0.01 | |
| -0.1126 | -4.55 | |
| 0.1555 | 7.12 | |
| -0.1042 | -5.03 | |
| 0.0809 | 3.14 | |
| -0.0665 | -2.21 | |
| 0.0169 | 0.68 |
Estimation Period:
Jan 2, 1990 to Oct 24, 2025
Jan 2, 1990 to Oct 24, 2025
News Impact Curve
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