In: Finance
Assume the following information:
1-year interest rate on U.S. dollars = 11.4%
1-year interest rate on Singapore dollars = 9.1%
Spot rate of Singapore dollar = 0.4 USD/SGD
1-year forward premium on Singapore dollars = 3.79%
Given this information, how much profit can be made with covered
interest arbitrage, by borrowing 1 million USD?
As per covered interest arbitrage the currency with higher interest rate will depreciate in future and currency with lower interest rate will appreciate.
In the above question 1 SGD = 0.4 USD or we can re write it as 1 USD = 1/0.4= 2.5 SGD
Simply 1 USD = 2.5 SGD
Now forward premium of SGD is given as 3.79% means in 1 year time SGD will appreciate to 0.4*1.0379= 0.41516 USD per SGD note first you have to pay 0.4 USD for 1 SGD now you will be paying 0.41516 USD per SGD meaning SGD is costlier now or it has appreciated.
Calculation of profit
Borrow 1 million USD at 11.4% and after 1 year pay 1,114,000 USD. Invest borrowed USD 1,000,000 in SGD first convert using spot rate 1,000,000/0.4= SGD 2,500,000 and invest SGD 2.5 Million at 9.1% and get after 1 year SGD 2,500,000 *1.091 = SGD 2727500.
Now convert 2727500 SGD using forward rate of 0.41516 comes to 2727500*0.41516= USD 1132349 Now out of USD 1132349 Pay 1 million USD including interest that is 1114000 and get profit of 1132349-1114000= USD 18349.