Defined contribution plans like 401(k)s and 403(b)s may appear to be fixed retirement vehicles, but in reality they are constantly shifting collections of individual accounts. Balances rise and fall with contributions, withdrawals, market performance, and participant movement. Yet despite their fluid structure, these plans have fundamentally reshaped retirement investing. They’ve brought nearly 100 million Americans into the markets, reduced costs through scale, and expanded access through automatic enrollment and payroll deduction.
Now the system is entering its next phase. The focus is shifting from plan-level products to individual participants. Target-date funds improved outcomes for many workers, but they remain broad, one-size-fits-most solutions. The next evolution points toward managed accounts powered by better data, personalization, and AI. Combined with guaranteed lifetime income solutions, this approach could transform 401(k)s from simple accumulation vehicles into personalized, advice-driven retirement income platforms.
Read more in Fred Barstein’s latest article in WealthManagement.com, “401(k) Plans are an Illusion.”
