The U.S. dollar rose above 155 yen on Wednesday in Tokyo for the first time in around three months on buying fueled by speculation that policies of U.S. President-elect Donald Trump will trigger sharp inflation and lift interest rates.

A key gauge of the dollar's strength hit its highest level in four months on Monday as many of the greenback's rivals weakened. The ICE U.S. Dollar Index, a popular gauge of the buck's value against a basket of rivals,

The euro dropped to its lowest level in nearly seven months against the U.S. dollar on Monday, weighed down by investor worries about possible tariffs by a new White House administration which could hurt the euro area's economy.