The euro hit its highest level since early February vs. the U.S. dollar Tuesday, bringing its gain against the greenback to more than 2 percent in March.
If the losses for the dollar continue, it should kick-start the and gold, which have stalled this month, history shows.
An emerging markets ETF should continue its monster March breakout, past trading patterns indicate.
Using hedge fund analytics tool Kensho, CNBC PRO analyzed which ETFs thrived when the dollar declined 5 percent or more vs. the euro in one month.
Here are the top performing ETFs, on average: