how does one use commodities 
traders can trade on the price of a commodity most commonly as a futures contract this is a contract in which a trader purchases shares of the commodity at a future time but in which a certain price is guaranteed in the event that external factors such as weather related disasters or geopolitical events affect the price of the commodity for traders of cfds on commodities investments are based on how the trader believes the price of the commodity will behave in a pre determined time frame 