The dollar dipped against riskier currencies on Tuesday as hopes for a coronavirus vaccine and big corporate deals improved investor appetite for assets such as the yuan and the euro.
The dollar index dipped to 93.029, slipping further from a one-month high of 93.664 touched last Wednesday, with its low last week of 92.695 seen as an immediate support.
Against the safe-haven yen, the dollar traded at 105.73 yen, having touched a two-week low of 105.55 yen on Monday.
Helping sentiment, AstraZeneca resumed British clinical trials of its Covid-19 vaccine, one of the most advanced in development while Pfizer Inc and BioNTech SE proposed expanding their phase three Covid-19 vaccine trial.
Wall Street shares bounced back also as several multi-billion dollar deals – including Nvidia’s purchase of chip designer Arm and a deal between Oracle and China’s ByteDance on TikTok – lifted confidence.