Frequentis AG started trading on the prime market, the top segment of the Vienna Stock Exchange, on 14 May 2019. The IPO of Frequentis was the second going public on the Vienna Stock Exchange this year. The start of trading was traditionally celebrated with the bell-ringing ceremony: Hannes Bardach, chairman of the supervisory board and majority shareholder of Frequentis, rang the bell together with Vienna Stock Exchange CEO Christoph Boschan.