Futures
Future is a financial contract obliging the contracting parties to buy and to sell the underlying asset at the predetermined price and date. The buyer agrees to buy the asset, and the seller agrees to deliver the asset. Futures are traded at the Futures Exchanges, and the operations are regulated.
Example:
GC AUG29`[email protected] NYMEX: is a future contract of Gold trading at the New-York's Goods Exchange on 29 August 2017