A weighted set of currencies used as one reference
Rather than tracking a single currency, several are combined with weights that often follow trade volumes. That reduces exposure to one country's situation, though it makes the reference harder for outsiders to read. Effective exchange rates are built on the same idea.
Weights such as 50% dollar, 30% euro and 20% yen turn the whole into a single index.
For learning, not investment advice. Decisions are your own.
StockFit · TrueNorthLabs Inc.