Westamerica Bancorporation Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Wednesday, February 11th, 2026:23.24% (-0.80%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 0.9942 | 3.89 | |
| 0.1164 | 9.44 | |
| 0.8218 | 50.34 | |
| -0.0422 | -0.93 | |
| 0.1106 | 1.77 | |
| -0.1643 | -4.49 | |
| 0.1927 | 5.97 | |
| -0.1659 | -5.29 | |
| 0.1070 | 3.44 | |
| -0.0495 | -1.51 | |
| 0.0237 | 0.72 | |
| -0.0230 | -0.90 |
Estimation Period:
Jan 2, 1990 to Feb 6, 2026
Jan 2, 1990 to Feb 6, 2026
News Impact Curve
Volatility Forecasts
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