The U.S. Dollar Index (USDX, DXY, DX, or, informally, the "Dixie") is an index (or measure) of the value of the United States dollar relative to a basket of foreign currencies,[1] often referred to as a basket of U.S. trade partners' currencies.[2] The Index goes up when the U.S. dollar gains "strength" (value) when compared to other currencies.[3]
The index is designed, maintained, and published by ICE (Intercontinental Exchange, Inc.), with the name "U.S. Dollar Index" a registered trademark.[4][5]
It is a weighted geometric mean of the dollar's value relative to following select currencies:
Euro (EUR), 57.6% weight Japanese yen (JPY) 13.6% weight Pound sterling (GBP), 11.9% weight Canadian dollar (CAD), 9.1% weight Swedish krona (SEK), 4.2% weight Swiss franc (CHF) 3.6% weight