Made famous by short-selling Lehman Bros. and Allied Capital, Einhorn has recently targeted Green Mountain Coffee Roasters, Amazon.com and Chipotle.

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Amazon.com was stronger as it turned green first among the group.

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While Amazon saw a 45% increase in sales over last Green Monday, Wingo points out that eBay (up 25% for the month of December to date) is cashing in on coveted items that have sold out in brick and mortar outlets.

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