The U.S. dollar just tallied its worst start to a calendar year since the era of free-floating exchange rates began. The ...

The dollar is the most important currency on earth, adding up to 57.7% of global currency reserves in the first quarter.

On Monday, the US Dollar Index ended the first half of the year 10.8% lower. That's its worst first-half performance since ...

The U.S. dollar faces a variety of headwinds heading into the second half of the year that could have important investing ...

That's its worst first-half performance since 1973, when Richard Nixon was president. At the time, the index fell 14.8%. On Tuesday, the US Dollar Index was 0.1% lower at 96.75 at 12:57 a.m. ET .