As one of the most important commodities, energies are known as "black gold" for centuries, whose price change is often regarded as a signal of the overall industry situation of production/consumption commodities. WIT's oil prices, for example, may be affected by factors such as adverse weather, seasonal supplies, natural disasters and other non-market factors common in other financial instruments, which has an impact on the prospect of energy sector.

In general, commodity trading can be either speculative or hedging. Trading commodities is a way to reflect traders' opinions on the prospect of a certain industry, or to hedge their trading portfolios. Namely, you can predict the price trend by judging the prospect of the market so as to make a profit by buying or selling.