The dollar fell for the fourth day running against the basket of currencies used to measure its broader strength on Monday, as a reaction to a G20 summit dominated by the Trump administration's protectionist bent extended last week's sales.
The dollar recovered a foothold on Monday after its worst three days of losses since early December, the impact of higher U.S. market interest rates turning it positive on the day against both the euro and a basket of currencies.
The dollar hit a three-week high against the yen on Thursday, on course for a fourth straight day of gains after a strong ADP job number in the previous session broke 10-year U.S. government bond yields out of a long-held range.
The dollar steadied against a basket of currencies on Tuesday, still stuck below highs hit in December and January after two weeks in which expectations for a rise in U.S. interest rates this month have soared.
Safe haven currency bets including the yen, the Swiss franc and to a lesser extent the Swedish crown rose on Tuesday as investors braced for a tensely-awaited speech to Congress by U.S. President Donald Trump.
The euro fell below $1.05 for the first time in six weeks on Wednesday, hit by a combination of concern over France's presidential election campaign and the growing gap between core euro zone interest rates and the U.S. equivalents.
The dollar rose broadly on Tuesday after two Federal Reserve policymakers pointed to a potential U.S. interest rates rise next month, turning attention to the bullish fundamentals of the world's biggest economy.
Falls for the euro and the pound dominated trade in the major global currencies on Friday, hit by a combination of nerves over upcoming French elections and signs British consumers are beginning to struggle in the face of the Brexit effect.