During today's Asian trading, the US dollar fell against most major currencies thanks to continued optimism among traders about the prospects for a global economic recovery this year.

"The mood of foreign exchange market participants remains based on optimism about the global economic recovery in 2021, and this suggests a downward trajectory in the value of the dollar," said analysts at Axi.

"The incidence of COVID-19 and the introduction of vaccines remain the focus of investors' attention at this time, " said JPMorgan Asset Management analyst Kerry Craig.

The dollar is also cheaper against the pound, australian dollar and asian currencies.

The ICE index, which tracks the dollar's performance against six currencies (euro, swiss franc, yen, canadian dollar, pound sterling and swedish krona), fell 0.35%.