Target-Date Funds Capture Majority of 401(k) Assets
Target-date funds have emerged as the dominant investment vehicle for retirement savers, with assets growing 15% in 2024 to reach $3.97 trillion at year-end. By mid-2025, the market had grown to nearly $5 trillion, cementing target-date funds' position as the default choice for 401(k) participants nationwide.
Market Data Shows Vanguard Dominance
According to Sway Research, target-date assets at Vanguard Group increased by nearly $200 billion in 2024, reaching $1.48 trillion at year-end. At the outset of 2025, Vanguard managed 2.6 times as much in target-date assets as the second-largest provider, Fidelity Investments, which managed $560 billion.
Vanguard's success stems largely from the industry shift toward passively managed portfolios. "Passive" target-date funds controlled $2.43 trillion at the conclusion of 2024—61% of total target-date assets. "Active" target-date funds held $1.13 trillion (29%), while hybrid strategies held $408 billion (10%).
Why Workers Choose Set-and-Forget Investing
The majority of retirement plan contributions—64%—now go into target-date funds, according to Vanguard's How America Saves report. Over 90% of retirement plans offer target-date options, making them accessible to the vast majority of workplace savers.
Target-date funds automatically adjust asset allocation based on the investor's expected retirement date, becoming more conservative as the target approaches. This eliminates the need for participants to actively manage their portfolios or rebalance their holdings.
Fee Competition Intensifies
Fee compression has made target-date investing increasingly attractive. Vanguard Target Retirement Funds charge just 0.08% annually, while the industry average expense ratio for comparable target-date funds runs 0.48%, according to Vanguard research.
The fee differences are significant over a career of saving:
- Vanguard: 0.08% expense ratio
- Schwab: 0.08% expense ratio
- Fidelity: 0.12% expense ratio for index funds
A difference of 0.40 percentage points in annual fees can add tens of thousands of dollars to retirement wealth over a 30-year career.
Guaranteed Income Features Grow
A notable trend emerging in the target-date space is the addition of guaranteed income features. According to Sway Research, target-date series with guaranteed income components have exceeded $100 billion in assets, as plan sponsors seek solutions that provide retirement income security alongside accumulation.
Why This Matters for Investors
This trend has significant implications for retirement security and the asset management industry. Target-date funds eliminate common investor mistakes like poor timing decisions and inadequate diversification, making them particularly valuable during volatile markets.
For the asset management industry, the concentration of assets with a few major providers creates competitive dynamics that favor scale and fee efficiency. Smaller providers must differentiate through specialized strategies, ESG options, or guaranteed income features.
Plan sponsors benefit from reduced fiduciary liability when using qualified default investment alternatives (QDIAs) like target-date funds, further reinforcing their adoption as plan defaults.
Sources: Sway Research, Vanguard, 401k Specialist, Motley Fool

