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	param	t-stat
$ω$	0.8401	4.17
$α$	0.0480	6.49
$β$	0.9469	121.80
$γ_{1}$	-0.0005	-0.68

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Huaneng Power International Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:32.31% (-0.62%)

Date Range:

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News Impact Curve

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