A stock price is $60 today. It pays dividend of $1 after two months and $1.05 after five months. The continuously compounded interest rate is 2% per year. Transaction costs are $0.10 per stock traded, a $0.25 one-time fee for trading forward contracts, and no costs for saving or borrowing. If the six-month forward price is $61, demonstrate how to make arbitrage profits or explain why you cannot.
No arbitrage six month forward price
= (S0 + C1 + C2)erT - D1er(T - t1) - D2er(T - t2)
= (60 + 0.10 + 0.25)e2% x 6/12 - 1e2%(6 - 2)/12 - 1.05e2%(6 - 5)/12
= $ 58.90
But the actual six-month forward price is $61. Hence, there is an arbitrage possible. The arbitrage strategy should be:
The arbitrage profit will be = Forward price - No arbitrage forward price = 61 - 58.90 = $ 2.10 per share
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