Deutsche Börse calculates sector indices for the Prime Standard segment as well as for a larger representative portfolio comprising all companies listed in Prime Standard, General Standard and Entry Standard.For each, the Prime segment as well as the larger portfolio, 18 sector indices and 63 subsector indices are provided. In addition nine supersector indices are calculated for the Prime segment. Sector and subsector indices are designed as All Share indices, whereas only companies with an average daily trading volume of at least €1 million qualify for the supersector indices. The various Prime sectors are consistent with the historical index data of the CDAX® sectors. In the appendix a table shows the different supersectors, sectors and subsectors.The classification of companies into the respective classic or technology sectors is done on the basis of the defined industry groups.Sector assignment is dependent upon a company’s primary sales focus. Where, in individual cases, a shift in such sales focus has occurred, the respective company can be removed from its present sector and included in another one on the next chaining date.