The euro on Wednesday surged back above parity with the dollar, with the US currency sliding against its main rivals on concerns over the world's biggest economy.
The euro bounced back above one dollar for the first time since mid-September, helped also by expectations of a big interest rate hike from the European Central Bank on Thursday.
There were large gains against the dollar also for the British pound and yen, helping them to recover some ground after recent sharp losses.
The dollar retreated following "a string of negative (US) economic data released since the beginning of the week", noted ActivTrades senior analyst Ricardo Evangelista.
He said that poorly-received data, including slower house price growth and weaker consumer confidence, showed that big rate hikes from the Federal Reserve are "starting to open some cracks in the American economy.
"The Federal Reserve has been hiking rates aggressively in an attempt to bring inflation under control, and the country's economy is starting to suffer as a result," Evangelista added.
Sterling on Wednesday jumped more than one per cent against the dollar, winning a boost also from markets welcoming the appointment of Rishi Sunak as prime minister. The move was seen as offering stability to the UK economy after weeks of upheaval fuelled by predecessor Liz Truss's tax-cutting budget.
The dollar also slumped against the yen following recent 32-year highs, as the Bank of Japan holds off from raising interest rates.
Stocks track earnings
Stock markets were mixed on Wednesday as traders digested another batch of earnings from some of the world's biggest companies.
Banks are enjoying large profits as interest rates rise but there are concerns over bad loans with the global economy threatened by possible recession.
Shares in Barclays fell 1.3 per cent despite the British bank announcing a 10 per cent jump in quarterly net profits.
Google parent Alphabet meanwhile reported quarterly earnings that fell short of market expectations as belts tightened in the digital ad market that drives its revenue.
Alphabet shares slipped 6.8 per cent to $97.35 in after-market trades that followed the release of the earnings report.
This disappointing quarter for Google signifies hard times ahead if market conditions continue to deteriorate- Insider Intelligence analyst Evelyn Mitchell
"When Google stumbles, it's a bad omen for digital advertising at large," said Insider Intelligence analyst Evelyn Mitchell. "This disappointing quarter for Google signifies hard times ahead if market conditions continue to deteriorate."