Dow Jones Industrial Average
Also known as DJI, Dow, DJIA Component, The Dow, Dow Jones
stock market index
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The Dow Jones Industrial Average is a stock market index that tracks the performance of 30 large companies traded on U.S. stock exchanges. It matters because it serves as a widely used measure of the overall health of the U.S. economy and stock market, influencing investment decisions and economic outlook.
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The Dow Jones Industrial Average (DJIA), Dow Jones, or simply the Dow (/ˈdaʊ/), is a stock market index of 30 prominent companies listed on stock exchanges in the United States.
The DJIA is one of the oldest and most commonly followed equity indices. It is price-weighted, unlike other common indices such as the Nasdaq Composite or S&P 500, which use market capitalization. The primary pitfall of this approach is that a stock's price—not the size of the company—determines its relative importance in the index. For example, as of March 2025, Goldman Sachs represented the largest component of the index with a market capitalization of ~$167B. In contrast, Apple's market capitalization was ~$3.3T at the time, but it fell outside the top 10 components in the index.