DAXplus Family – Ein Aktienindex zur Darstellung derPerformance von Familienunternehmen

In January 2010 the Deutsche Börse Group introduced two family firm stock indices. Both indices are calculatedas price and performance indices and extend the number of investment strategy indices of Deutsche BörseGroup. The DAXplus Family is an all-share index whereas the DAXplus Family 30 represents a selection indexof the 30 largest and most liquid Prime Standard family firms of Frankfurt Stock Exchange (FSE). The indexdevelopment traces back to a mutual research project between Deutsche Börse Group and Technische UniversitätMünchen (TUM).In order to be applicable for DAXplus Family index inclusion, a firm has to fulfil a founding family definition:the founder(s) and/or related family members have to control at least 25% of voting rights or at least 5% votingrights if the founder or the family is not only shareholder but also active management or supervisory boardmember. Out of 123 family firms that were included in the DAXplus Family at index introduction in January2010, about 95% (117 firms) qualified with both elements of the definition – required control of voting rightsand board representation. Only 23% of the index firms are characterised by blockholdings of the family below25%.The DAXplus Family 30 has a correlation of 99.6% with the all-share index DAXplus Family and a correlationof 83.6% with the German blue chip index DAX. A performance backtesting of the DAXplus Family 30 fromJune 2002 to July 2010 revealed an annualized return of 11.5% at an annualized volatility of 24%. Further detailsabout the indices’ theoretical and empirical foundation, underlying concept, main features as well as descriptivecharacteristics are presented in this primer.