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	param	t-stat
$ω$	0.1199	8.59
$α$	0.0294	8.82
$β$	0.9990	829.73
$ν$	9.9276	1.66

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State Street SPDR Portfolio Treasury ETF GAS-GARCH Student T Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:3.43% (+0.19%)

Date Range:

Parameter Estimates

Other State Street SPDR Portfolio Treasury ETF Analyses