Futures are forward contracts negotiable on particular markets on which holders can buy or sell these securities. With this contract, the parties involved, the buyer and the seller, undertake to exchange a certain financial asset at a predetermined price.
The financial asset in question can be real or simply financial. This type of contract is standardized, which can be applied to any type of underlying asset.
Precisely for this reason this type of contracts are particularly loved by traders, since they are possible for any type of asset or security.
To learn more about futures we recommend that you read our guide about it, in order to have a clear and comprehensive overview on the subject.