Dow Jones Industrial Average (DJIA)

In Depth

The Dow Jones Industrial Average, created by Charles Dow in 1896, is a price-weighted index of 30 blue-chip U.S. stocks selected by the editors of The Wall Street Journal. Unlike the S&P 500, which is market-cap-weighted, the Dow gives more influence to stocks with higher per-share prices regardless of company size. This methodology means a $1 move in UnitedHealth Group (trading above $500) moves the Dow more than a $1 move in a lower-priced stock. The index uses a divisor (currently around 0.15) that adjusts for stock splits and component changes, ensuring historical continuity. Despite its limitations — only 30 stocks, price-weighted methodology — the Dow remains one of the most quoted market indicators in mainstream media and is deeply embedded in public consciousness. Its components span all major sectors except transportation and utilities (which have their own Dow indices). For business leaders, the Dow's movement is often the first market data point that employees, board members, and customers reference, making it a shorthand for market sentiment even though the S&P 500 provides a more comprehensive view.