at MarketWatch.com (Oct 16, 2014)
Rubicon (RBCN +6.7%) jumps after receiving upgrades to Neutral from RBC and Sterne Agee. Sterne is encouraged by improving demand for Rubicon's 6" LED wafers, and for its silicon on sapphire wafers from RF chipmaker Peregrine Semiconductor. 37% of Rubicon's float was shorted as of July 13.
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