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	param	t-stat
$ω$	0.0194	5.96
$α$	0.0673	5.25
$β$	0.6839	14.75
$γ$	-0.1531	-4.94

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State Street SPDR Portfolio Treasury ETF AGARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:6.47% (+1.46%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other State Street SPDR Portfolio Treasury ETF Analyses