A "put opsiyonu" is a financial contract that gives the holder the right, but not the obligation, to sell a specific asset, such as a stock, at a predetermined price within a certain time frame. This type of option is often used by investors to hedge against potential losses or to speculate on the decline of an asset's price. When an investor purchases a put option, they pay a premium for this right. If the market price of the asset falls below the strike price, the investor can exercise the option, selling the asset at the higher strike price, thus minimizing their losses or potentially making a profit.