The Dow Jones Industrial Average (DJIA) is a stock market index that measures the stock performance of 30 large publicly owned companies listed on stock exchanges in the United States. It is one of the most widely followed equity indices globally.
To buy the DJIA, you can either buy shares of individual companies that comprise it or invest in an exchange-traded fund (ETF) that tracks the index. ETFs are baskets of securities that trade on exchanges, and they offer a convenient and low-cost way to gain exposure to the DJIA.