Target-Date Funds Lose Ground as Self-Directed Brokerage Accounts Surge

Target-date funds were supposed to be the retirement planning solution that made everything simple: pick a year, set it, forget it. But a growing number of 401(k) participants are opting out of that autopilot approach and moving toward self-directed brokerage accounts – and the shift is forcing the retirement industry to reckon with what investors actually want.

The Quiet Decline of the “Set It and Forget It” Model

Target-date funds built their dominance on simplicity. Introduced in the early 1990s and turbocharged by the Pension Protection Act of 2006 – which allowed employers to auto-enroll workers into them – these funds became the default retirement vehicle for millions of Americans. At their peak, they absorbed the majority of new 401(k) contributions, largely because most participants never changed the default selection their employer chose for them.

The appeal was genuine. A worker with no investment knowledge and no desire to develop any could contribute consistently to a fund that gradually shifted from equities to bonds as retirement approached. The glide path did the thinking. For many people, especially those who would otherwise leave money sitting in a money market account or a stable value fund for decades, target-date funds genuinely improved outcomes.

But the model has a structural problem: it treats all investors born in the same year as financially identical. A 35-year-old with a paid-off home, a working spouse, and a high risk tolerance gets the same allocation as a 35-year-old carrying student debt with dependents and minimal savings elsewhere. The one-size-fits-all construction that makes target-date funds easy to manage also makes them blunt instruments for anyone whose situation sits outside the average.

Fees have added to the frustration. While expense ratios on target-date funds have dropped over the past decade, the underlying fund-of-funds structure means investors are often paying a wrapper fee on top of the costs of the underlying holdings. In plans where the employer has not negotiated aggressively, those layered costs compound quietly over time, reducing terminal balances in ways that rarely show up on a quarterly statement in any obvious way.

Self-Directed Brokerage Windows Are Gaining Real Traction

Self-directed brokerage accounts – often called brokerage windows – have existed inside 401(k) plans for years, but they were historically treated as niche options for sophisticated participants willing to do extra paperwork. That perception is changing. More employers are adding them as a plan feature, and a younger cohort of investors who are already comfortable trading individual stocks and ETFs in taxable brokerage accounts is showing clear interest in bringing that same flexibility to their retirement savings.

The mechanics are straightforward. A brokerage window sits alongside the standard fund menu in a 401(k). Participants can transfer a portion of their balance – or ongoing contributions, depending on the plan design – into the brokerage account and then invest in a much wider universe of securities, including individual stocks, bonds, ETFs, and sometimes options. They retain the tax advantages of the 401(k) structure while gaining access to tools that target-date funds simply cannot replicate.

For investors who already spend time researching individual companies, who follow sector rotations, or who want to hold dividend growth stocks as a deliberate inflation hedge, the brokerage window removes a longstanding barrier. Before these accounts became more accessible, a financially engaged investor had no way to apply that knowledge within their tax-advantaged retirement account. The money sat in the default fund regardless of their skill or preference.

The cost picture inside brokerage windows is more nuanced than it first appears. There is no wrapper fee on a self-selected ETF, but trading commissions, account fees, and the friction of managing individual positions all create their own drag. An investor who churns their brokerage window account or makes emotionally driven trades during a volatile quarter can easily underperform the target-date fund they abandoned – and without the behavioral guardrails that passive vehicles provide by design.

That risk does not appear to be slowing adoption. Younger participants, many of whom came of age during the retail investing surge of the early 2020s and are comfortable with platforms like Fidelity, Charles Schwab, and Vanguard’s direct brokerage interfaces, are treating their 401(k) brokerage window as a natural extension of how they already manage money. The line between retirement saving and active investing is blurring for this cohort in ways that would have seemed unlikely a decade ago.

What This Means for Plan Sponsors and Asset Managers

For employers who sponsor 401(k) plans, the surge in brokerage window usage creates a compliance and fiduciary headache. Plan sponsors have a legal obligation to act in the best interest of participants, but that obligation becomes harder to execute when workers are self-directing into securities that the sponsor never vetted. Offering a brokerage window while documenting appropriate guardrails – contribution limits, eligibility thresholds, participant acknowledgments – is increasingly standard practice, but it requires administrative infrastructure that not every plan has in place.

For the asset managers who run target-date fund families, the trend raises a harder question about product positioning. The value proposition that sustained these funds for two decades – passive default, automatic rebalancing, regulatory favor – is still intact for less engaged investors. But the segment of participants who actively want more control is now large enough that ignoring it is not a viable strategy. Some fund companies are already experimenting with hybrid approaches: customizable glide paths, modular allocation tools, and advisory overlays that try to give participants flexibility without fully handing them the wheel. Whether any of those products can compete with the appeal of a full brokerage window – where a participant can buy any stock they want with no committee approval – is a question the industry has not yet answered convincingly.