The US dollar has recently strengthened on signs of US economic strength, even after a long period of interest rate hikes by the Federal Reserve.
US consumer spending soared in September, while the US economy grew at its fastest pace in nearly two years in the third quarter.
Fed policymakers will meet this week, with the central bank expected to leave interest rates unchanged when the decision is announced on Wednesday.
However, traders are concerned that these strong numbers mean they portend higher interest rates for longer as they continue to worry about overheating inflation.