Casper Landsten-Thirty Days Later. Casper Landsten once again has $ million (or its Swiss franc equivalent) to invest for three months. He now faces the following rates. Should he enter into a covered interest arbitrage (CIA) investment? Arbitrage funds available $ 950,000 Spot exchange rate (SFr/$) 1.3393 3-month forward rate (SFr/$) 1.3288 U.S. Dollar annual interest rate 4.748 % Swiss franc annual interest rate 3.623 % Question content area bottom Part 1 The CIA profit potential is enter your response here%, which tells Casper Landsten he should borrow Swiss francs U.S. dollars and invest in the higher lower yielding currency, the Swiss franc U.S. dollar , and then sell the Swiss franc U.S. dollar principal and interest forward three months locking in a CIA profit. (Round to three decimal places and select from the drop-down menus.)