sentences:  Ultimately, an energy exchange can reduce dramatically the price risk related to short-term spikes in load profiles.EXAA was founded as a public limited company and the shareholders are Wiener Börse AG (25.1%) and the APCS AG (34.5%), as well as a number of different companies from the Austrian energy sector holding smaller shares (April 2013).Since 2005 EXAA forms part of the CISMOgroup, a group comprising a number of different service providers for the energy sector.