Nonferrous metals, energy varieties, etc. Non-ferrous metals (copper, nickel, tin, etc. ), energy varieties (crude oil, palm oil, fuel oil, etc. ), soda ash, glass. These varieties fluctuate greatly and have a short cycle. Futures (English: futures) are the subject matter that is bought and sold now and delivered in the future. The subject matter can be commodities, such as gold, crude oil, agricultural products or financial instruments.