After rising 50% from Nov. 28 to yesterday's close, Ruckus Wireless (RKUS -5%) is slumping on underwriter coverage day - the carrier/enterprise Wi-Fi equipment firm has received 4 bullish and 2 neutral ratings. Needham, among the bulls, highlights the 63% CAGR the carrier Wi-Fi market is expected to show from 2011 to 2015 - that's also a positive for Ericsson's (ERIC) BelAir Networks unit. Goldman, starting at Neutral, is concerned about valuation. Lazard started Ruckus with a Buy yesterday.
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