Cocoa harvests are coming up short for the third ... However, not all retail brokers offer futures trading, and it is a little more complicated than buying traditional stocks.

Cocoa, like other commodities ... you'll have to put up more margin – or the amount you have to deposit with your broker to secure a futures position – when the market becomes more volatile.

Cocoa futures on the ICE exchange hit four-month lows on Friday and ended the week with losses above 5% amid a large increase in ICE-certified stocks and benign weather forecasts for West Africa. * ...