A Yes it is. The DAX-30, simple referred to as the DAX, is comprised of the top 30 companies listed on the Frankfurt Stock Exchange. The DAX-30 is categorised as a stock index, and is sometimes referred to as a "blue chip" stock index; due to the reputation of the companies listed upon it and their ability to generate revenue in good and bad economic times. The thirty companies listed on the DAX-30 are referred to as constituents, and the constituents of the DAX-30 change based upon their economic performance. Becoming a member of the DAX-30 index is based upon the order book volume and market capitalisation of a company. Adidas were first included on the DAX-30 on the 19th of June, 1998, and are still a member of the DAX-30. The DAX-30 is currently comprised of the following constituents: Adidas, Allianz, BASF SE, Bayer AG, Beiersdorf AG, BMW ST, Commerzbank AG, Continental AG, Daimler AG, Deutsche Bank AG, Deutsche Boerse, Deutsche Post AG, Deutsche Telekom AG, E.ON SE, Fresenius SE, Fresenius ST, Heidelbergcement AG, Henkel VZO, Infineon AG, K+S AG, Lanxess AG, Linde AG, Lufthansa AG, Merck, Muench. Rueckvers, RWE AG ST, SAP AG, Siemens AG, Thyssenkrupp AG and Volkswagen AG VZO.