Jefferies downgrades Wayfair, says be wary of an air pocket for the stock

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Jesse Pound@/in/jesse-pound@jesserpound
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Traders wait for the Wayfair IPO on the floor of the New York Stock Exchange October 2, 2014.
Lucas Jackson | Reuters

The recent slide for Wayfair's stock appears unlikely to reverse any time soon, according to investment firm Jefferies.