The Dow Jones Industrial Average (DJIA), commonly referred to as the Dow 30, is a stock market index that comprises 30 prominent, publicly-owned, and widely-recognized blue-chip companies. These companies are traded on both the New York Stock Exchange (NYSE) and the Nasdaq stock exchange. The DJIA serves as a key benchmark for gauging the overall performance of the U.S. stock market.
Created by Charles Dow and first published in 1896, the DJIA is one of the oldest and most closely followed stock market indices in the world. It is often used as a barometer of the health and direction of the U.S. economy and financial markets. The index is calculated using a price-weighted formula, where the stock prices of its constituent companies are summed and divided by a divisor to arrive at the index value. Changes in the DJIA reflect shifts in the stock prices of its component companies and are closely monitored by investors, financial professionals, and the media as an indicator of market trends.