Reuters provides this article by Martha Graybow: “Study finds 401(k) investors not diversified enough.” You can access the study performed by Hewitt Associates Inc. here. The study reports that “the average participant holding company stock had 42 percent of balances in company stock.” It also reports that “more than one quarter (28 percent) of employees held 50 percent or more of their 401(k) plan balances in company stock.” This is all pretty amazing when you consider all of the publicity over Enron about how participants lost their life savings in their 401(k) accounts due to not being properly diversified.
This very interesting study by the Vanguard Group Center for Retirement Research–“Can There Be Too Much Choice in a Retirement Savings Program?”–provides useful information for plan sponsors designing their plans. The study applies the “choice overload hypothesis” to the
401(k) plan arena and may provide some insight as to why employees continue to be heavily weighted in company stock. In my opinion the study seems to say that people simply do not respond very well when provided with too many choices, and may choose what is most familiar to them when confronted with more choices than they can handle.