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	param	t-stat
$ω$	0.0265	17.04
$α$	0.1647	31.22
$β$	0.8034	220.00
$γ$	0.0637	6.73

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Sigma-Aldrich Corp Asy. MEM Volatility Analysis

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News Impact Curve

Volatility Forecast

Parameter Estimates

Other Sigma-Aldrich Corp Analyses