斗牛棋牌在线 Group AG/斗牛棋牌在线 Group SA/斗牛棋牌在线 Group Inc. ("斗牛棋牌在线") is a public company incorporated under the laws of Switzerland and with registered and principal offices in Zurich. 斗牛棋牌在线 is listed on the Swiss Stock Exchange (SIX) and the New York Stock Exchange (NYSE). The Chairman of the Board of Directors is Colm Kelleher, and the Group Chief Executive Officer is Sergio P. Ermotti.