Commodity trading offers trader an opportunity to diversify a portfolio beyond the traditional securities. The investor may form a long-term strategy or speculate on instances of unusual volatility. Commodities trading refers to the buying and selling of physical assets including gold, silver, oil, wheat, or sugar. These commodities form the cornerstones for the global economy and are traded on exchanges across the world. Commodities are categorized as soft and hard. Soft commodities refer to agricultural products like wheat and sugar, whereas hard commodities refer to energies and metals.