Foreign-exchange traders are changing their options tactics for betting on a weaker dollar after the greenback’s large decline last week.

The dollar turned higher against the Japanese yen and euro on Monday after a bruising week last week sent it to a three-year low against the single currency but also left it oversold by some technical metrics.

The euro and the yen soared against the dollar today, as investors grappled with how U.S. President Donald Trump’s far-reaching tariffs will impact global trade and economic growth.