24 pages. "Employer-sponsored retirement plans increasingly are the gateway to mutual fund ownership. Sixty-seven percent of mutual fund-owning households that purchased their first fund in 2010 or later purchased that fund through an employer-sponsored retirement plan, compared with 57 percent of those that made their first purchase before 1990. In mid-2015, 40 percent of mutual fund-owning households owned funds both inside and outside employer-sponsored retirement plans. An additional 40 percent owned mutual funds only inside employer-sponsored retirement plans."