1. The spot exchange rate is ¥102.30/$, the 180-day forward exchange rate is ¥101.40/$, the 180-day dollar interest rate is 4.8% per year, and the 180-day yen interest rate is 3.4% per year. Models suggest that spot will remain close to ¥101.90/$ over the next 180 days. How much profit does investing $5,000,000 (or its yen equivalent) in a covered interest arbitrage between US dollars and Japanese yen yield?
2. The spot exchange rate is ¥102.30/$, the 180-day forward exchange rate is ¥101.40/$, the 180-day dollar interest rate is 4.8% per year, and the 180-day yen interest rate is 3.4% per year. Models suggest that spot will remain close to ¥101.90/$ over the next 180 days. How much profit does investing $5,000,000 (or its yen equivalent) in an uncovered interest arbitrage between US dollars and Japanese yen yield?