The TecDAX stock index tracks the performance of the 30 largest German companies from the technology sector. In terms of order book turnover and market capitalization the companies rank below those included in the DAX. The TecDax was introduced on 24 March 2003. It succeeded the NEMAX50 (Neuer Markt — new market) stock index of German new economy companies that existed from 1997 to 2003 and was discontinued after extreme value loss due to the burst of the dot-com bubble. TecDAX is based on prices generated in Xetra. The index is calculated on every trading day, between 9am and 5.30pm CET . In 2018, the TecDAX had an average performance of 23,3 % in five years, outpacing even the NASDAQ. Companies The following 30 companies make up the index as of the quarterly review effective February 2021. 1&1 Drillisch Aixtron Bechtle Cancom AG Carl Zeiss Meditec CompuGroup Medical SE Deutsche Telekom Dräger (company) Eckert & Ziegler Strahlen- und Medizintechnik AG Evotec Freenet Infineon Technologies Jenoptik LPKF Laser & Electronics AG MorphoSys Nagarro SE Nemetschek Nordex Pfeiffer Vacuum Qiagen SAP Sartorius Siemens Healthineers Siltronic Software AG TeamViewer AG Telefónica Germany United Internet VARTA XING See also DAX MDAX SDAX ÖkoDAX References External links TecDAX official information from Deutsche Börse German stock market indices Stock market indices by industry