USD Index in Forex Trading

When it comes to forex trading, one of the key elements that traders should be familiar with is the USD Index. The USD Index, or US Dollar Index, is a measure of the value of the United States dollar relative to a basket of foreign currencies. It provides traders with a way to gauge the strength or weakness of the US dollar against other major currencies such as the euro, Japanese yen, British pound, Canadian dollar, Swedish krona, and Swiss franc.

What is the USD Index?

The USD Index was created in 1973 and is maintained by ICE (Intercontinental Exchange). It is a weighted geometric mean of the value of the US dollar compared to six other major currencies. The index is calculated by taking the value of the US dollar against each of the six currencies and then weighting them based on the trade volume with the United States.

The weights of the currencies in the USD Index are as follows:

  • Euro – 57.6%
  • Japanese yen – 13.6%
  • British pound – 11.9%
  • Canadian dollar – 9.1%
  • Swedish krona – 4.2%
  • Swiss franc – 3.6%

Significance of the USD Index in Forex Trading

The USD Index is an important tool for forex traders as it provides valuable insights into the strength or weakness of the US dollar in relation to other major currencies. Traders use the USD Index to monitor the overall health of the US economy and to make informed trading decisions.

When the USD Index is rising, it indicates that the US dollar is gaining strength against other currencies. This can be a sign of a strong US economy, high interest rates, or positive economic data. Traders may interpret a rising USD Index as a signal to buy US dollar-denominated assets or to sell other currencies.

Conversely, when the USD Index is falling, it suggests that the US dollar is weakening relative to other currencies. This could be due to a variety of factors such as a struggling economy, low interest rates, or negative economic news. Traders may view a falling USD Index as an opportunity to sell US dollar-denominated assets or to buy other currencies.


Q: How can I access the USD Index?

A: The USD Index can be found on most forex trading platforms and financial news websites. It is typically listed as “DXY” which is the ticker symbol for the USD Index.

Q: Is the USD Index the only index that measures the US dollar?

A: No, there are other indices that measure the US dollar against specific currencies or a broader range of currencies. However, the USD Index is one of the most widely used and recognized indices in forex trading.

Q: How often is the USD Index updated?

A: The USD Index is updated in real-time throughout the trading day. Traders can monitor changes in the index to stay informed about the latest movements in the US dollar.



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