Summary: Stocks were mostly lower in midday trading Friday after disappointing earnings results from companies including Fedex (FDX) and UPS (UPS). Aaron Levie's Box (BOX) IPO didn't falter out of the gate, popping for more than 40 percent on its first day of trading. Elsewhere in public markets, Zillow (Z) shares are shooting up after analysts at Cowen & Co. put a bullish rating on the stock. As it processes its acquisition of Trulia (TRLA), and as the U.S. housing market appears to be gaining steam in 2015, the volatile stock could be poised to make more gains in the near-term.
