The Dow Jones U.S. industrials index measures industry performance in the equity market. Industrial index correspond generally to the price and performance of U.S. industry stocks as represented by the Dow Jones U.S. Industrials index.Among the Dow Jones indexes to measure for industrial performance there is something called Down Jones industrial average that measures 30 leading U.S. companies. The Dow Jones U.S. industrials index includes companies in the following sectors: construction and materials, airlines and defense, general industrials, electronic and electrical equipment, industrial engineering, industrial transportation and support services.Sector mutual funds invest heavily in the Dow Jones U.S. industrials index. It depends on the performance of a company and if it proves to be a multi-bagger stock it will make the industry and the investor millionaires. Owing to the risk and volatility of such stocks, investors should not expect such results will be repeated all the time.Dow Jones industrials index also depends upon Fed rates, GDP of the country, manufacturing average and all. Sometimes oil prices or crude affect the cost of production for a company and it would reflect on its stock price in the market. Mergers and takeovers are another reason for a company to either have a high priced stock or a sliding one.The industrial Index holds companies from other indices like large cap, mid cap or small cap and it is based on complete asset class representation, and as you know, class representation is based on the company’s revenue as well.Just as the industrial sector, there are different other sectors like utilities, blue-chip, FMCG or consumer goods sector dealing with different companies. Whatever index one is dealing with, whether it be industrial, metal or FMCG one must be careful and alert to get out of the stock in time and do not take on losses.Whenever you are looking to make money with the Dow Jones US industrials index, remember that you should do your research and make sure the company is doing well financially before investing. All too many investors simply look at a companies’ stock price before investing, and ignore the fact that whenever they invest in a company, they are actually buying part of that firm.You wouldn’t buy part of a company without knowing it’s profitably and future outlook, would you? Follow these tips, and you will make a fortune with your investments in the Dow Jones US industrials index.