The 2013 Investing Themes to Look Out For

Bloomberg's Mark Barton speaks to John Haynes, head of research at Investec Wealth and Management about his investment strategy for 2013.

Pivotal's Brian Wieser: Why I'm Bullish on Twitter
08:15 - Brian Wieser, Pivotal Research senior research analyst, discusses Twitter's rough year and its prospects going forward. He speaks with Bloomberg's David Gura on "Bloomberg Markets." (Source: Bloomberg)
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