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- Q1 The current price of a stock is $94, and three-month call options with a strike
- price of $95 currently sell for $4.70. An investor who feels that the price of the
- stock will increase is trying to decide between buying 100 shares and buying
- 2,000 call options (20 contracts). Both strategies involve an investment of
- $9,400.
- a) What is the total gain for each strategy if the stock price at maturity is
- $115?
- b) What is the total loss if the stock price is $92 at maturity?
- c) How high does the stock price have to rise for the option strategy to be
- more profitable?
- d) Draw a diagram showing how the profits of these two alternative strategies
- depends on the stock price in 3 months.
- e) What advice would you give to this investor?
- Q5 Suppose that 3-month, 6-month, 12-month, and 2-year OIS rates are 4.0%,
- 4.8%, 5.5%, and 6.4%, respectively. The 3-month, 6-month and 12-month
- OISs involve a single exchange at maturity; the 2-year OISs involve quarterly
- exchanges. The compounding frequencies used for expressing the rates correspond to the frequency of exchanges.
- a) Calculate the OIS zero rates using continuous compounding. Interpolate
- linearly between continuously compounded rates to determine rates between 6 months and 12 months, and between 12 months and 2 years. (Use
- your calculator to find 3-month, 6-month, 12-month OIS rates. Use Excel
- to find 2-year OIS rate.)
- 2
- b) What are the forward rates for the periods: 6 months to 12 months, 12
- months to 24 months?
- c) What is two-year par yield? Assume coupons are paid twice in a year.
- d) Suppose the risk-free rates are as you calculated in a). If we know the current forward LIBOR rate for the six-month period beginning in 6 months
- is 6.7% (semiannually compounded), what is the value of an FRA where
- the holder pays 6.5% (semiannually compounded) for that six-month period in 6 months? The principal is $100 million.
- Q6 Consider a dividend-paying stock. The spot price in April is $50. Dividends of
- $0.75 per share are expected in July and October. An investor wants to short
- 1,000 shares and purchase them back in November. Show the cash flows of this
- investor’s transactions if the price in November is $48. Will she gain or loss by
- shorting? (Suppose the risk-free interest rate is 0.)
- Q7 Consider a 2-month forward contract on a non-dividend paying stock with a
- current price of $60. The risk-free interest rate continuously compounded is
- 6.5% p.a.
- a) What should be the theoretical forward price?
- b) If the forward price is $60.95, use a cash flow table that is similar to what
- we learned in class to show how you would arbitrage from this forward
- price.
- c) If the forward price is $60.35, use a cash flow table that is similar to what
- we learned in class to show how you would arbitrage from this forward
- price.
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