Vadeli işlemler are financial contracts that allow parties to buy or sell an asset at a predetermined price on a specific future date. These contracts are commonly used in markets for commodities, currencies, and financial instruments. They help investors hedge against price fluctuations and manage risk. In vadeli işlemler, the buyer agrees to purchase the asset, while the seller agrees to deliver it at the agreed-upon price. This type of trading is essential for businesses and investors who want to secure prices and protect themselves from market volatility.