German Stock Index DAX 30 was formerly known as Deutscher Aktien IndeX 30. It consists of the 30 major German companies trading on the Frankfurt Stock Exchange. The Eurex, a European Electronic Futures and Options Exchange based in Zurich, Switzerland with a subsidiary in Frankfurt, Germany, offers options (ODAX) and Futures (FDAX) on the DAX from 08:00 to 22:00 CET.