The DXY, or the U.S. Dollar Index, measures the value of the United States dollar relative to a basket of foreign currencies, including the euro, Japanese yen, British pound, Canadian dollar, Swedish krona, and Swiss franc. It is a key indicator of the dollar's strength in international markets and is widely used by traders and analysts to gauge currency trends and to inform investment decisions. Fluctuations in the DXY can reflect changes in economic conditions, interest rates, and geopolitical events.