I share my analysis, signals and forecasts on Dollar Index occasionally. Quite often I receive questions from you asking me to explain what exactly that index means and why it is so important.
Dollar Index (DXY) is a measure of the value of the United States Dollar against a weighted basket of major currencies.
The selection of the following basket of currencies and their weight is determined by the significance of a trading partnership between the countries.
The index value is calculated with the formula: USDX = 50.14348112 × EURUSD ^ -0.576 × USDJPY ^ 0.136 × GBPUSD ^ -0.119 × USDCAD ^ 0.091 × USDSEK ^ 0.042 × USDCHF ^ 0.036
Take a look at a correlation coefficient between Dollar Index and EURUSD, most of the time it is close to -1. It implies a perfect negative relationship between two instruments.
While a correlation between Dollar Index and USDCHF is not that tight due to limited value of Swiss Franc in a calculation of the index.
The index was launched in 1973 and had an initial value of 100.
When the U.S.D is gaining strength against the above-mentioned currencies, the index is growing, while its weakness against them leads to a decline of the index value.
To conclude, the Dollar Index reflects a fair value of the Dollar and its dominance in global markets. Its analysis may help to make more accurate predictions of the future direction of the dollar related instruments.