A target date fund (TDF) is a "set it and forget it" retirement investment. You pick the fund closest to your expected retirement year (e.g., "2055 fund"), and the fund automatically becomes more conservative as that date approaches. It's the auto-pilot of retirement investing.
How the Glide Path Works
At age 30 (35 years from a 2055 retirement), a target date fund might be 90% stocks / 10% bonds. At age 55 (10 years out), it shifts to 70/30. At retirement (2055), roughly 50/60% stocks / 40/50% bonds. After retirement, it continues shifting toward bonds. This automatic rebalancing is the core feature.
Pros and Cons
- •PRO: True autopilot — one fund handles diversification and rebalancing automatically
- •PRO: Prevents panic-selling and emotional rebalancing decisions
- •PRO: Available in every 401(k) plan, often as the default
- •CON: Expense ratios vary widely — Vanguard TDFs: 0.08%, some employer plans: 0.5–1%+
- •CON: May be too conservative late in life — many experts suggest a more aggressive glide path
- •CON: You lose control over asset allocation if you have specific preferences
Vanguard vs Fidelity vs Schwab Target Date Funds
- •Vanguard Target Retirement Funds: 0.08% expense ratio — among the cheapest available
- •Fidelity Freedom Index Funds: 0.12% — excellent low-cost option
- •Fidelity Freedom Funds (non-index): 0.49% — avoid these, use the Index version
- •Schwab Target Date Index Funds: 0.08% — comparable to Vanguard
- •Your 401(k) may offer only proprietary options — always check the expense ratio
In a 401(k) with high-cost target date funds, consider building your own three-fund portfolio: US stocks (e.g., Fidelity 500 Index), international stocks (Fidelity International Index), and bonds (Fidelity US Bond Index). It's one extra step but can save 0.5–1%/year.
Target date funds are an excellent choice for 401(k) investors who won't actively manage their portfolio. The key is to check the expense ratio — if it's under 0.15%, use it. If it's above 0.5%, build a three-fund portfolio with cheaper underlying index funds.