What Are the Biggest Tech IPOs in History?

May 6 (Bloomberg) -- From the railway to the information superhighway, in today's "The Big Question," Bloomberg's Willem Marx looks at the biggest share offerings in U.S. history, covering more than a century from the Union Pacific Railroad to Alibaba's upcoming IPO.
Is Virtual Reality the Next Mega-Trend in Tech?
22:42 - Piper Jaffray's Gene Munster and Canaan Partners' Maha Ibrahim discuss the future of virtual reality with Bloomberg Businessweek's Brad Stone on "Bloomberg West." (Source: Bloomberg)
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