The standard deviation of annual returns for Stock Y is 41%. The standard deviation of annual returns for Stock Z is 67%. The correlation between the two stocks' returns is +1. If you decide to buy $4100 worth of Stock Z, figure out how much of Stock Y you need to buy or sell in order to create a net-short hedge portfolio. Then, for your answer, type the initial value of the portfolio. Since the portfolio is net-short, type your answer as a negative number.