The Dow Jones Indices are a collection of stock market indices that track the performance of various groups of stocks. The most well-known among them is the Dow Jones Industrial Average (DJIA), which includes 30 large, publicly traded companies in the United States. These indices serve as benchmarks for investors to gauge market performance and economic health. Founded by Charles Dow in the late 19th century, the Dow Jones Indices are widely used by investors and analysts. They provide insights into market trends and help in making informed investment decisions. Other notable indices include the Dow Jones Transportation Average and the Dow Jones Utility Average.