The dollar fell against major peers on Tuesday as China set the official yuan exchange rate at the strongest since abandoning its peg in 2005, which helped support demand for other units.
The Australian dollar led gains in major currencies as the move by the People’s Bank of China (PBOC) encouraged broad dollar selling.
Earlier, the greenback had found support as concerns about surging COVID-19 cases and uncertainty about US runoff elections in Georgia spurred a retreat in US stocks from record highs to start the year and kindled demand for safer assets.
While investor caution about the yuan’s heady rally prompted some later selling in the Chinese currency on Tuesday, the PBOC’s action nonetheless lifted risk sentiment in currency markets.
“If the Chinese currency is going up, it’s providing a degree of support for Asian currencies in general, and I suspect that’s why the US dollar is partially reversing the gains that we saw from Wall Street time,” said Ray Attrill, head of FX strategy at National Australia Bank in Sydney.
“It’s a very big move by any historical yardstick, and I don’t think you can ignore that.”
The PBOC set the official yuan midpoint at 6.4760 per dollar prior to the market open, 1 percent firmer than the previous fix, also the biggest change since 2005.
In the offshore market, the yuan strengthened as far as 6.4419 for the first time since June 2018. It started the week at 6.4944.
The Aussie dollar, a barometer of risk appetite that also tends to follow the yuan, jumped 0.5 percent to 77.022 US cents in the Asian session, approaching the 2-1/2-year high of 77.43 touched on the final day of 2020.
The dollar index weakened 0.2 percent to 89.731. It dropped as low as 89.415 on Monday for the first time since April 2018, but ended the day with a 0.1 percent gain after US stocks slid.
“Until the vaccines are rolled out globally, the market will continue to be driven by COVID headlines, so it’s a bit of a volatile time,” said Shinichiro Kadota, senior currency strategist at Barclays Capital in Tokyo.
“But generally positive risk sentiment should continue this year, and with that, dollar continues to weaken against riskier currencies. We expect Chinese yuan to be one of the outperformers.”
The dollar fell 0.1 percent to 103.010 yen. It dropped as low as 102.715 on Monday for the first time since March.
The euro rose 0.1 percent to $1.22690 after reaching $1.231 on Monday, a level not seen since April 2018.
The British pound gained 0.1 percent to $1.3583. Sterling has been swung by a surge in infections of a fast-spreading new coronavirus strain in the UK, with Prime Minister Boris Johnson ordering a nationwide lockdown.
It slid 0.73 percent on Monday, the most since December 10, after earlier rising to $1.3703, a level not seen since May 2018.
Bitcoin traded at $31,407 following a roller-coaster ride to start the new year that took it to a record high of $34,800 on Sunday, followed by a tumble to as low as $27,734 the following session.