Retirement Expert Urges Investors to Rethink Target-Date Funds
The creator of the 4% rule argues these popular funds are too conservative for modern retirements.
1The Dominance of Target-Date Funds
Target-date funds hold $4.8 trillion in assets as of 2025, with 81% of Gen Z and 70% of millennial 401(k) investors using them exclusively. These funds automatically adjust stock/bond ratios as investors approach retirement, starting with 90% stocks and gradually shifting to 50/50 at retirement date. Their popularity stems from being default options in employer plans and requiring minimal investor involvement. However, critics argue this automation comes at the cost of personalized strategy.
2Bengen's Fundamental Criticism
Bill Bengen, creator of the 4% withdrawal rule, contends target-date funds become excessively conservative, ultimately allocating only 30% to stocks post-retirement. He recommends 65% stocks/35% bonds for retirees and 100% stocks for pre-retirees. Bengen's updated 4.7% safe withdrawal rate accounts for longer lifespans and recent stock outperformance. His research shows this allocation sustains portfolios for 30-35 years. The critique centers on funds' rigid timelines ignoring market conditions and individual circumstances.
3The Allocation Problem
Target-date funds follow predetermined glide paths: a 2070 fund might start at 90% stocks (Vanguard VSVNX or Fidelity FRBVX), reduce to 50/50 at retirement, then shift to 70% bonds years later. Bengen argues this underweights equities during decades-long retirements where growth remains crucial. Bonds' lower volatility comes with reduced returns historically. The funds also rebalance mechanically regardless of market valuations - selling stocks during crashes or buying at peaks, potentially locking in losses.
4Behavioral Finance Perspective
While target-date funds prevent emotional investing mistakes, their 'set-and-forget' nature may create complacency. Pam Krueger of Wealthramp notes they're 'clunky' instruments that can't address individual needs precisely. The convenience comes at the cost of flexibility - investors can't adjust allocations based on personal risk tolerance, health changes, or unexpected financial needs. This one-size-fits-all approach particularly disadvantages those with longer time horizons or higher risk capacity.
5Alternative 1: Professional Management
Hiring fee-only financial advisors represents one alternative, offering customized strategies that adapt to market conditions and life changes. While costing 0.5%-1% annually, skilled advisors may generate excess returns through tax optimization, opportunistic rebalancing, and behavioral coaching. Services like Wealthramp vet advisors who act as fiduciaries. This approach suits investors wanting hands-off management without target-date funds' constraints, especially those with complex financial situations.
6Alternative 2: Lifestyle Funds
Lifestyle funds maintain fixed allocations, like Vanguard's VSMGX (60% stocks/40% bonds) or BlackRock's BAAPX (80/20 split). These provide more consistent risk exposure than target-date funds' shifting ratios. Investors can choose funds matching their risk tolerance and manually adjust as circumstances change. The static allocations prevent forced selling during downturns but require periodic reviews. They offer middle ground between full automation and active management.
7Generational Considerations
Younger investors' heavy reliance on target-date funds (81% of Gen Z) raises concerns about understanding their mechanics. Many may not realize these funds become increasingly conservative or that alternatives exist. Millennials and Gen Z face unique challenges like longer retirements and uncertain Social Security, making growth-oriented strategies potentially more appropriate. Financial literacy gaps could leave investors unaware they're accepting lower expected returns for convenience.
8Strategic Implications
The debate highlights retirement planning's evolution as lifespans extend. Target-date funds, designed for 20th-century retirement patterns, may need updating for 30+ year retirements requiring growth. Investors should assess whether convenience outweighs potential opportunity costs. While suitable for some, those willing to engage more actively or with specific circumstances might benefit from blended approaches combining professional advice with select fund strategies.
Original article: Business Insider — Retirement Expert Urges Investors to Rethink Target-Date Funds