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	param	t-stat
$ω$	0.0354	24.88
$α$	0.1189	35.21
$β$	0.8811	278.30
$γ$	0.0689	5.79
$δ$	1.5815	38.72

V-Lab

Hong Kong & China Gas Co Ltd APARCH Volatility Analysis

Volatility Prediction for Monday, February 23rd, 2026:20.93% (+1.17%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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