FIGURE 17.4: Today After 1 year 120.773898 100 89.47150422 Call: strike price K= 105, option matures after 1 year. Money Market Account (mma) 1 1.051271096 Note: The up factor U is US/S= 120.773898/100 = 1.2077. The down factor Dis DS/S= 89.471504/100 = 0.8947 Dollar return 1 +R= 1.0513. We report numbers to four places and the final answer to two places after the decimal point although calculations consider ten places after the decimal point. The next eight questions use the above data. 17.8. a. Given the preceding data, set up a perfect hedge and compute the call option's value. b. What is the hedge ratio? What does it signify? FIGURE 17.4: Today After 1 year 120.773898 100 89.47150422 Call: strike price K= 105, option matures after 1 year. Money Market Account (mma) 1 1.051271096 Note: The up factor U is US/S= 120.773898/100 = 1.2077. The down factor Dis DS/S= 89.471504/100 = 0.8947 Dollar return 1 +R= 1.0513. We report numbers to four places and the final answer to two places after the decimal point although calculations consider ten places after the decimal point. The next eight questions use the above data. 17.8. a. Given the preceding data, set up a perfect hedge and compute the call option's value. b. What is the hedge ratio? What does it signify