The euro fell to a more than seven-week low against the dollar after the European Central Bank shocked investors by cutting interest rates.
The euro rose as stronger-than-expected German industry data increased uncertainty over whether the ECB would cut interest rates this week.
The euro fell on Tuesday, hit by speculation the European Central Bank may signal easier monetary policy.
The euro touched a six-week low on Monday after suffering its biggest drop in over a year last week as pressure mounted on the European Central Bank to cut interest rates to shore up growth.
The dollar hovered near a two-week high on Thursday as some investors cut negative bets on the currency.
The dollar turned positive against a basket of major world currencies in thin trade on Wednesday.
The dollar inched up, but stayed near a nine-month trough as investors bet the Federal Reserve this week will set the course for its massive stimulus program to be maintained.
The dollar edged higher on Monday but held close to a nine-month low against a basket of currencies.
The euro hovered close to a two-year high against the dollar on Friday.
The euro was steady against the dollar on Thursday after disappointing euro zone data drew it away from a two-year high.
The dollar set a fresh two-year low against the euro on Wednesday after disappointing U.S. jobs data cemented expectations that the Federal Reserve will not taper until early next year.
The dollar climbed against the yen and the Swiss franc on Monday.
The dollar fell to eight-and-a-half-month lows against the euro and a currency basket on Friday.
Ulrich Leuchtmann, Head of FX Research at Commerzbank says the Canadian dollar is a good alternative to the U.S. dollar.
The dollar index slid Thursday as a deal to end the U.S. debt stalemate prompted investors to focus on the economic impact of the government shutdown.
The dollar rose against most currencies on Wednesday after the Senate announced a deal that would avert a U.S. default and re-open government.
The dollar dropped to session lows against the yen on Tuesday as talks on raising the U.S. debt ceiling floundered.
The dollar slipped on Monday and the yen rose on safe-haven demand, as lawmakers struggled to reach a deal before this week's debt ceiling deadline.
The dollar index rose Friday, heading for its first weekly gain in five, as optimism grew that Congress will reach a stop-gap deal to avert default.
The dollar rose to a two-week high against major currencies as optimism grew that lawmakers might reach a deal to avert a U.S. debt default.