A troubling shift in the dollar’s trading relationship with U.S. stocks has eased somewhat over the past few weeks.

The U.S. dollar was steady on Thursday after retreating from a two-week high versus major peers, as markets took U.S. President Donald Trump's latest tariff salvos in their stride, except in Brazil where a threatened 50% levy sent the real sliding.

NPR reported that Harvard University economics professor Kenneth Rogoff said the dollar hasn't weakened this much since then-President Richard Nixon canceled the convertibility of the dollar to gold in the 1970s.