The prospect of the euro falling to equal the dollar has returned with a vengeance after the ECB signaled it was willing to extend QE.
The euro tumbled on Thursday after European Central Bank President Mario Draghi said the bank discussed a further interest rate cut.
The dollar rose against emerging market and commodity-linked currencies on Wednesday.
The euro rose against the dollar on Tuesday, after falling for three straight sessions.
The euro slipped to a 10-day low against the dollar on Monday, as investors eyed a European Central Bank meeting later in the week.
The dollar rose broadly, as traders reckoned the Federal Reserve might raise interest rates later this year.
The dollar rose against a basket of currencies as underlying domestic inflation strengthened more than expected in September.
The dollar sank to a seven-week low against a basket of currencies on Wednesday.
Currencies linked to Chinese growth fell for the first time in over a week on Tuesday.
The dollar hovered near a three-week low on Monday, anchored by the doubts over the potential for a rise in U.S. interest rates this year.
The U.S. dollar hit multi-week lows against the euro and Swiss franc on Friday.
The U.S. dollar held lower on Thursday after the release of the Federal Reserve minutes.
Optimism toward global economic growth boosted risk appetite and drove the U.S. dollar higher.
The dollar slipped against a basket of major currencies on Tuesday on continued expectations that the Fed will not hike this year.
The U.S. dollar rose against a basket of major currencies on renewed risk appetite.
The euro reversed earlier losses to trade sharply higher on Friday after the September jobs report widely missed expectations.
The yen and euro came under pressure on Thursday, as stock markets edged higher after their worst quarterly performance in four years.
The euro lost ground on Wednesday on data showing euro zone inflation dipped back into negative territory in September.
The yen and Swiss franc were the winners on Tuesday as risk aversion swept global markets, underpinning flows into safe haven currencies.
The dollar rallied after U.S. Federal Reserve Chair Janet Yellen left the door open to a hike in interest rates later this year.