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The following adjustment will be made to the composition of the Austrian leading index ATX after today's review according to the index rules: The real estate company S Immo AG will be joining ATX for the first time since it became exchange-listed. The sugar company, AGRANA BETEILIGUNGS-AG will be included in the ATX again after a break of over ten years. The real estate developer conwert Immobilien Invest SE and Flughafen Wien AG will be removed from the leading index. Apart from these changes to the index composition, there were no adjustments to the free float factors. The new index composition of the ATX will take effect as of Monday 18 September 2017.
According to "The Rules for the Austrian Indices of the Vienna Stock Exchange", the inclusion or exclusion of stocks from the Austrian indices is reviewed twice a year (March and September). Decisions on new additions to the index are based on average daily trading volumes and the free float capitalization of companies. The Vienna Stock Exchange reviews the calculation parameters (number of shares, free float factors, representation factors) of the index on a quarterly basis. Once a month, the "ATX Watchlist" is published. Representatives of institutional investors, financial institutions that issue financial products on the indices, trading members of the Vienna Stock Exchange, academics advisors and the Vienna Stock Exchange contribute their know-how to the Index Committee, which approves the index rules. A list of the Committee members is available.
