15. Buy 100 shares of stock and buy one August 165 put contract. Hold the position until expiration. Determine the profits and graph the results. Determine the breakeven stock price at expiration, the maximum profit, and the maximum loss. ra fo 24. (c For probleme 16 17 18 The following option prices were observed for a stock for July 6 of a particular year. Use this information in problems 10 through 15. Ignore dividends on the stock. The stock is priced at 165.13. The expirations are July 17, August 21, and October 16. The continuously compounded risk-free rates are 0.0503, 0.0535, and 0.0571, respectively. The standard deviation is 0.21. Assume that the options are European. Calls Puts Strike Jal Aug Oct Jul Aug Oct 2.70 165 8.10 4.75 6.75 5.25 3.25 2.40 5.75 0.80 170 6.00 7.50 9.00 In problems 10 through 15, determine the profits for possible stock prices of 150, 155, 160, 165, 170, 175, and 180. Answer any other questions as requested. Note: Your Excel spreadsheet Stratlyz9e.xls will be useful here for obtaining graphs as requested, but it does not allow you to calculate the profits for several user-specified asset prices. It permits you to specify one asset price and a maximum and minimum. Use Stratly exis to pro- in for the off com