The yen dropped against the dollar and the euro as better-than-expected earnings at JPMorgan Chase & Co. encouraged investors to sell the currency to buy higher- yielding assets outside Japan.
The dollar fell against the euro as a report showed manufacturing in the Philadelphia region contracted in July for an eighth month.
The dollar weakened versus the euro on a sign of contraction in manufacturing. The Philadelphia Fed's general economic index improved to minus 16.3 this month from minus 17.1 in June, the bank reported today. Readings less than zero signal a decline.
Builders started work in June on the fewest single-family U.S. homes since 1991, the Commerce Department said.