In a Protective Put strategy, the option seller (investor) purchases put options for each stock held in their portfolio. This strategy is typically divided into short periods, during which the put options protect against downside risk. At the end of each period, if the price of the underlying stock declines, the put options allow the investor to sell the stock at a predetermined price, known as the strike price. This protection helps limit potential losses for the investor, making the Protective Put strategy an effective risk management tool in volatile markets.