Put
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An investor purchases a put option on an underlying asset, such as a stock, a bond, or a commodity. The put option gives the investor the right to sell the underlying asset at the strike price, even if the asset's market price falls below the strike price. -
If the price of the underlying asset declines, the investor can exercise their right to sell the asset at the strike price, which will limit their loss to the difference between the strike price and the market price. If the price of the underlying asset remains stable or increases, the investor can let the put option expire without exercising it, and they will keep the premium they paid for the option as profit.