Sony has a weak tie to the Sumitomo Mitsui Financial Group (SMFG) corporate group, the successor to the Mitsui group.[16] Sony is listed on the Tokyo Stock Exchange (in which it is a constituent of the Nikkei 225 and TOPIX Core30 indexes) with an additional listing in the form of American depositary receipts listed in the New York Stock Exchange (traded since 1970, making it the oldest Japanese company to be listed in an American exchange), and was ranked 122nd on the 2020 Fortune Global 500 list.[17]