Reconsider the determination of the hedge ratio in the two-state model (Section 16.2), where we showed that one-third share of stock would hedge one option. Assuming a stock price of $312, what would be the hedge ratio for each of the following exercise prices: $312, $286. $260. $234? (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 2 decimal places.) The hedge ratio of an at-the-money call option on IBM is 0.14. The hedge ratio of an at-the-money put option is -0.57. What is the hedge ratio of an at-the-money straddle position on IBM? (Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.) Hedge ratio