Hengyi Petrochemical Co Ltd GJR-GARCH Volatility Analysis
Volatility Prediction for Tuesday, February 24th, 2026:52.64% (+0.34%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 0.1016 | 17.52 | |
| 0.0911 | 20.87 | |
| 0.9038 | 400.62 | |
| -0.0050 | -0.71 |
Estimation Period:
Mar 28, 1997 to Feb 13, 2026
Mar 28, 1997 to Feb 13, 2026
News Impact Curve
Volatility Forecasts
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