POSCO Holdings Inc Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Tuesday, February 24th, 2026:40.36% (-1.09%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 0.7893 | 7.12 | |
| 0.0818 | 9.01 | |
| 0.8601 | 54.97 | |
| -0.0055 | -0.17 | |
| 0.0536 | 1.04 | |
| -0.1613 | -4.04 | |
| 0.2155 | 5.85 | |
| -0.1889 | -5.35 | |
| 0.1710 | 5.09 | |
| -0.1285 | -3.68 | |
| 0.0677 | 2.06 | |
| -0.0382 | -1.61 |
Estimation Period:
Jan 3, 1990 to Feb 20, 2026
Jan 3, 1990 to Feb 20, 2026
News Impact Curve
Volatility Forecasts
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