Target-Date Funds Overview
Target-Date Funds Overview
A single target-date fund automatically adjusts from aggressive to conservative as you near retirement, eliminating the need to rebalance.
Key takeaways
- Target-date funds hold a diversified portfolio of stocks and bonds that automatically shift toward bonds as your target retirement year approaches
- Vanguard's glide path continues shifting bonds for 10+ years into retirement; Fidelity and T. Rowe Price shift more aggressively at the target date
- This approach works for hands-off investors but removes the flexibility to adjust allocations based on personal circumstances
- Target-date funds are particularly valuable in 401(k) plans where investment choices are limited
- Fees vary; low-cost Vanguard target-date funds are generally preferable to high-cost competitors
The basic concept
A target-date 2045 fund is designed for someone planning to retire around 2045. Today (2024), a 2045 fund holds roughly 80% stocks and 20% bonds. Each year, the fund gradually increases bond allocation and decreases stock allocation. By 2045, the fund might be 45% stocks and 55% bonds. By 2055 (10 years into retirement), it might be 40% stocks and 60% bonds.
This "glide path"—the path of gradually shifting allocations—requires no action from the investor. You buy one fund, contributions go to that fund, and the fund automatically rebalances. You don't have to think about changing your allocation or manually moving money between funds.
Why target-date funds exist
Inertia and psychology are the main reasons target-date funds exist. Research shows that most people don't rebalance. They buy a portfolio and leave it alone. This is problematic: an investor who buys 60-40 in 2014 and never rebalances has 80-20 by 2024 (stocks outperformed). This mismatch between intended risk and actual risk leads to poor decisions.
A target-date fund forces rebalancing to happen automatically. There's no temptation to skip rebalancing because the fund does it. For people who would otherwise do nothing, target-date funds provide an automatic path toward a more conservative portfolio as retirement nears.
Vanguard's approach
Vanguard's Retirement Date funds have a unique characteristic: the glide path extends well into retirement. The Vanguard Retirement 2045 Fund starts at roughly 85% stocks and 15% bonds today. By 2045, it transitions to 51% stocks and 49% bonds. But here's the key: it continues shifting toward bonds for another 10 years, reaching roughly 40% stocks and 60% bonds by 2055.
This extended glide path reflects Vanguard's research on longevity. A 65-year-old (retiring in 2045) has a 25% chance of living into their 90s. If you want your portfolio to last 30+ years, you need substantial stock exposure even in retirement. Vanguard's approach acknowledges this.
Within the fund, the allocation is global and diversified: roughly 50% US stocks, 30% international stocks, and 20% bonds. No specialized bets, no emerging market overweight. Just broad diversification.
Vanguard Retirement funds charge roughly 0.08% annually, low enough that they are competitive even with low-cost three-fund portfolios.
Fidelity's approach
Fidelity's Freedom funds have a different glide path. The Freedom 2045 Fund starts roughly 85% stocks and 15% bonds. But by 2045, it's already quite conservative at roughly 50% stocks and 50% bonds. After 2045, it freezes at that allocation.
This "to" glide path (as opposed to "through" glide paths that continue into retirement) reflects an assumption that at retirement age, you want a more conservative portfolio and shouldn't take as much stock risk afterward.
Fidelity's target-date funds vary in quality. Some are expensive (0.5% or higher) if they hold actively managed funds. Fidelity's low-cost index-based Freedom Index funds charge roughly 0.12%, slightly higher than Vanguard but reasonable.
T. Rowe Price approach
T. Rowe Price's Retirement funds use a "to and through" approach similar to Vanguard's. The Retirement 2045 Fund starts aggressive and gradually becomes more conservative before and after 2045, with the glide path extending about 10 years past the target date.
T. Rowe Price's target-date funds are less competitively priced (0.5-0.75% for index-based versions) than Vanguard, making them less attractive unless held in a 401(k) where Vanguard funds aren't available.
When target-date funds make sense
Target-date funds are most valuable for 401(k) plan participants with limited fund choices. If your 401(k) offers 30 different funds and most are expensive active funds, buying the target-date fund is often your best option. The automatic rebalancing and reasonable fees (typically 0.3-0.5% in most plans) beat picking actively managed funds and forgetting to rebalance.
They also make sense for extremely hands-off investors who are genuinely unwilling to rebalance or think about allocations. If left to your own devices you'd never rebalance and would keep an 80-20 portfolio at age 60, a target-date fund forces the issue.
For investors able and willing to manage a simple three-fund portfolio (US stocks, international stocks, bonds), a DIY approach offers more flexibility and typically lower costs.
Limitations of target-date funds
One-size-fits-all glide path: The glide path assumes you want to retire at age 65 and follow a standard de-risking schedule. If you plan to work until 70, you'd be better in a target-date 2050 fund. If you plan to retire at 55, you'd be better in a 2035 fund. The fund doesn't know or care about your actual circumstances.
Fixed allocation in retirement: Many target-date funds freeze their allocation at the target date (Fidelity's approach) or a few years later (Vanguard's glide path continues). But retirement needs vary. Someone who retires at 65 and has significant pension income might want 70% stocks. Someone with no pension might want 40% stocks. A fixed allocation doesn't adapt.
Limited customization: You can't overweight international stocks, underweight bonds, or tilt toward small-cap value if you prefer. The fund's diversification is fixed.
Fees in some plans: Some 401(k) plans offer expensive target-date funds (0.8% or higher), which is not competitive with self-directed three-fund portfolios (0.08-0.15%).
How Vanguard and Fidelity glide paths compare
Three-fund portfolio alternative
The classic alternative to a target-date fund is a simple three-fund portfolio:
- 50% VTI (US total market)
- 20% VXUS (international)
- 30% BND (total bond)
Adjust the percentages based on your risk tolerance and time horizon. Every 1-2 years, rebalance by selling winners and buying losers. This ensures your allocation stays on track.
This approach requires discipline (you must remember to rebalance) but offers flexibility. As retirement nears and your tolerance for risk changes, you can adjust the percentages directly. It also offers lower fees than many target-date funds in 401(k) plans.
Picking the right target date
If choosing a target-date fund, pick the year closest to when you plan to retire. If you plan to retire in 2045, buy the 2045 fund. If you plan to retire in 2048, buy the 2050 fund (rounding up to the nearest 5-year increment, as most funds use).
If you're already retired, some providers offer "Retirement Income" funds (like Vanguard's Retirement Income Fund) that freeze at a very conservative allocation (roughly 30% stocks, 70% bonds and alternatives). These are appropriate only for current retirees already living off portfolio withdrawals.
Tax considerations
In a Roth IRA, 401(k), or other tax-advantaged account, target-date fund rebalancing is tax-free, which is an advantage. The fund rebalances without generating taxable gains.
In a taxable brokerage account, frequent rebalancing can generate capital gains taxes. A target-date fund rebalances internally without affecting your tax situation, which is a minor advantage over manually rebalancing.
Related concepts
Next
Target-date funds are a complete portfolio, but they raise a question: what if you want more control or need to make allocations beyond simple stocks and bonds? The next section covers sector funds—how they differ from total market funds, when they might be appropriate, and the pitfalls of sector concentration.