When companies are removed and added to the index the membership list may temporarily show both the removed company and added company.The thirty companies included in the Dow Jones Industrial Average are listed below. The list is sorted by each components weight in the index. The weight of each company is determined by the price of the stock. A $100 stock will be weighted more than a $30 stock. If a stock splits its corresponding weighting in the Dow Jones will be reduced as its price will be about half of what it was prior to the split.