Reuters reported last week that Australia's second-biggest pension fund, Australian Retirement Trust, is reducing dollar exposure through hedging, while hanging on to its U.S. investments. That sort of view helps explain how stocks have marched on to record peaks despite the swings in FX.
The falling dollar helped gold to a new high above $5,200 an ounce and has lifted the Australian dollar over 70 cents.
Rates are giving the Aussie an extra boost and after data on Wednesday showed hotter-than-expected underlying inflation in December, markets put the chance of a rate hike next week at more than 70%.
All of Australia's "Big Four" banks now forecast a hike.
Central banks in the U.S. and Canada are seen keeping rates on hold later on Wednesday, leaving the focus on how Fed Chair Jerome Powell handles questions on the central bank's independence.
Earnings are due for Meta and Tesla after U.S. markets close.