The U.S. currency swung between gains and losses on Monday together with the Euro and the Yen staying flat as the Japanese national holiday reduced liquidity in markets after the Fed last week's policy meeting resulted in a stimulus scale-back. The U.S. Dollar traded at 104.05 yen falling from the five-year high at 104.64 recorded on Friday, and it fluctuated in a range between 103.92 and 104.08.