Economist: These are market's biggest risks in 2016

1:05 PM ET Thu, 10 Dec 2015

The biggest risks to the market will be the Federal Reserve and geopolitical uncertainty, says David Rosenberg, Gluskin Sheff chief economist providing a preview of the biggest negatives for stocks next year. And CNBC's Bertha Coombs and the Futures Now traders look at a play on an increase in interest rates.