MFS Investment Management

MFS Investment Management (MFS) is an American global investment manager that was formerly known as Massachusetts Financial Services. Founded in 1924, MFS is one of the oldest asset management companies in the world and has been credited with pioneering the mutual fund. The first mutual fund, the Massachusetts Investors Trust fund, is still in operation today. MFS had $645.3 billion in assets under management as of September 30, 2024.