... expected rally and the risk if there isno rally.Thus, for an excellent guide to the relative risk and reward of holdingvarious options, take the implied or estimated volatility for each stock, esti-mate ... pay $11,555 for the 100 shares and receive $2,500 for ourshort call for a net investment of $9,055. However, the position is not ac-ceptable. We wanted to own the equivalent of 100 shares but ... divided by the initialinvestment. The formula is:Return = (Profit or loss) ÷ initial investment For example, if you buy an IBM option for 5 and sell it for 71/2,foraprofit of 21/2, your return...