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	param	t-stat
$ω$	0.6502	3.50
$α$	0.1722	4.33
$β$	0.7476	13.72
$γ_{1}$	-0.2411	-1.63
$γ_{2}$	0.3193	1.70

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SPDR S&P 500 Buyback ETF Zero Slope Spline-GARCH Volatility Analysis

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Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other SPDR S&P 500 Buyback ETF Analyses