David Rosenberg’s top 8 things giving investors angst right now

Oil plunging, companies cutting, Greeks rebelling and a currency war brewing: 2015 is off to a rocky start for investors. Here’s David Rosenberg’s list of the top worries for investors: 1) Bears are back “The U.S. equity market has entered the year with volatility on the rise and the bears more or less in charge.” 2)…