Over this year, Pandora will have to contend with the likes of Apple (NasdaqGS: AAPL), which has announced its iCloud service that will allow streaming of music over multiple devices, and Amazon (NasdaqGS: AMZN), which also launched its Cloud Drive service that allows customers access and store music online.

LinkedIn (NYSE: LNKD) shares doubled in their first day of trading, but have also fallen below the IPO price. [IPO ETF Won’t Catch LinkedIn First-Day Surge.]

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First Trust US IPO Index Fund

Max Chen contributed to this article.