440.640 Q2

2. (60) Consider applying the binomial method to price American options. Suppose that stock in the MAGA Hat Company is priced at So = 100 and consider options that are at the money K = 100. The options mature in T' = 1 year, which we divide into n = 3 periods, each of length At = = = 2. The risk-free rate is r = 0.08 and MAGA stock has a volatility of o = 0.45. (a) (10) Calculate the magnitude of upticks u and downticks d, as well as the risk-neutral probability p. (b) (10) Draw the stock price tree and calculate the payoffs to call and put options at each final price. (c) (10) Using backward induction, calculate the price of European call and put options. (d) (10) Verify that put-call parity holds for European options. (e) (10) Find the price of American call and put options. Is it ever worthwhile to exercise early? (f) (10) Does put-call parity hold for American options