Ultrapar Participacoes SA Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Friday, February 13th, 2026:34.49% (-0.01%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 1.1619 | 5.96 | |
| 0.0759 | 6.48 | |
| 0.8603 | 42.89 | |
| -0.0068 | -0.09 | |
| 0.0565 | 0.47 | |
| -0.1264 | -1.64 | |
| 0.1383 | 2.61 | |
| -0.0675 | -1.53 | |
| 0.0529 | 1.18 | |
| -0.1446 | -3.05 | |
| 0.1408 | 3.96 |
Estimation Period:
Oct 7, 1999 to Feb 6, 2026
Oct 7, 1999 to Feb 6, 2026
News Impact Curve
Volatility Forecasts
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