What Is a Target-Date Fund?
In plain English
A target-date fund (TDF) is a type of mutual fund or ETF that provides an all-in-one diversified portfolio that automatically adjusts its asset allocation over time. Named for a specific retirement year (e.g., Target 2045), it begins stock-heavy for growth and gradually shifts toward bonds and stable assets as the target date approaches — a process called a glide path.
How Does the Target-Date Fund Glide Path Work?
The glide path is the gradual shift from aggressive to conservative allocation over time. A 2060 fund today might hold 90% equities and 10% bonds. As the target year approaches, it steadily reduces equity exposure and increases bond allocations. By retirement, the fund may hold 50% or less in equities. After the target date, glide paths differ: some funds continue to become more conservative ('to retirement'), while others stabilize ('through retirement').
What Are the Benefits and Drawbacks of Target-Date Funds?
Benefits include simplicity, automatic rebalancing, professional management, and broad diversification in a single fund. They're excellent default options for hands-off investors. Drawbacks include higher expense ratios than building your own portfolio with index funds, a one-size-fits-all approach that may not match your specific risk tolerance, and varying glide path philosophies between fund families that can produce very different results near retirement.
Should You Use a Target-Date Fund in Your 401(k)?
For most investors — especially those who won't or don't want to manage their own allocation — target-date funds are excellent choices. The Pension Protection Act of 2006 designated them as Qualified Default Investment Alternatives (QDIAs), recognizing their suitability. Compare expense ratios (Vanguard, Fidelity, and Schwab offer low-cost options below 0.15%) and choose the fund matching your expected retirement year, or one slightly later if you want to maintain growth longer.
Frequently asked questions
Should I invest in a target-date fund or build my own portfolio?
Target-date funds are ideal for investors who want simplicity and don't want to manage asset allocation. Building a portfolio with individual index funds offers lower costs and more control but requires ongoing rebalancing and investment knowledge. Both approaches can work well — the best choice is the one you'll stick with through market volatility.
Can I hold more than one target-date fund?
There's little benefit to holding multiple target-date funds since they're already diversified. If you hold two with different target years, you create an in-between allocation that could be replicated more efficiently with one fund. Pick a single target-date fund that aligns with your retirement year and investment horizon.
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Related terms
401(k)
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Roth IRA
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Defined-Contribution Plan
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FIRE stands for Financial Independence, Retire Early — a movement centered on extreme saving and investing to achieve financial independence and retire decades ahead of the traditional timeline.