401(k) Database

In an ongoing collaborative effort, the Employee Benefit Research Institute (EBRI) and the Investment Company Institute (ICI) collect annual data on millions of 401(k) plan participants as a means to examine how these participants manage their 401(k) plan accounts. The EBRI/ICI Participant-Directed Retirement Plan Data Collection Project is the largest, most representative repository of information about individual 401(k) plan participant accounts. As of December 31, 2015, the EBRI/ICI database included statistical information about:

  • 26.1 million 401(k) plan participants, in
  • 101,625 employer-sponsored 401(k) plans, holding
  • $1.9 trillion in assets.
The 2015 EBRI/ICI database covers 48 percent of the universe of 401(k) plan participants, 18 percent of plans, and 43 percent of 401(k) plan assets. The EBRI/ICI project is unique because it includes data provided by a wide variety of plan recordkeepers and, therefore, represents the activity of participants in 401(k) plans of varying sizes—from very large corporations to small businesses—with a variety of investment options.
    Annual Cross Sectional
    Additional Studies