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	param	t-stat
$ω$	0.0224	25.96
$α$	0.0958	25.80
$β$	0.9042	307.14
$γ$	0.6260	16.38
$δ$	1.1704	31.06

V-Lab

State Street SPDR Portfolio Developed World ex-US ETF APARCH Volatility Analysis

Volatility Prediction for Thursday, February 12th, 2026:13.63% (-0.54%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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