The Euro is a major currency used in the global financial markets. It is the official currency of the European Union and is used in the majority of international transactions. As a major currency, it is an important tool for investors and financial markets. It is used to trade stocks and bonds, as well as to buy and sell commodities and currencies. Investors can take advantage of the Euro's stability and liquidity to diversify their portfolios and hedge against currency risk. The Euro is also used as a safe-haven asset, as it tends to appreciate when other currencies depreciate. This makes it an attractive investment for those looking to protect their capital.