Mutual funds FUND ACCOUNTING: Rankings - '40 Act Open-End Mutual Funds - Sale or Lease (Assets) 1 Min Read Partner Insights from Facebook Twitter LinkedIn Email Sale or lease fund accounting '40 Act rankings by assets. View Table Printer Friendly Version FUND ACCOUNTING: Rankings - '40 Act Open-End Mutual Funds - Sale or Lease (Assets) 2019 Rank Service Provider Assets ($ millions) 1 FIS 20,644,876 2 BNY MELLON 4,976,631