Crude oil had a strong 2016, but that momentum could stall in the coming year, says Maxwell Gold, director of investment strategy for ETF Securities. Gold says he expects crude to remain range-bound as the market comes to grips with OPEC's production cuts. He is more bullish on gold ( ETF Gold Trust  (SGOL ) and silver ( Silver Trust  (SIVR - Get Report) ) in 2017 due to currency and geopolitical volatility. Finally, he is positive on coffee and sugar when it comes to agricultural commodities.