What is a Target-Date Fund?
A target-date fund (TDF) is a single fund designed to be the only investment you need for retirement. A 2055 target-date fund is designed for someone planning to retire around 2055. Today it might hold 90% stocks and 10% bonds, but by 2055 it will gradually shift to roughly 40% stocks and 60% bonds. This automatic adjustment is called the glide path, and it removes the need for manual rebalancing.
Glide Path Differences
Not all target-date funds are created equal. Vanguard's 2055 fund holds about 90% stocks 30 years before retirement, while T. Rowe Price's equivalent holds roughly 98%. At the target date, allocations range from 30% to 55% in stocks depending on the provider. Some funds reach their most conservative allocation at retirement ('to' funds), while others continue adjusting for 20+ years after ('through' funds). These differences can produce return variations of 2-3% annually.
Key Considerations
Target-date funds charge a weighted average of their underlying fund fees, typically 0.10-0.15% for index-based versions and 0.50-0.75% for actively managed ones. They are the default investment option in most US 401(k) plans, holding over $3.5 trillion in assets. The main drawback is one-size-fits-all design - a 35-year-old with high risk tolerance and a 35-year-old with low risk tolerance get the same allocation in the same vintage fund.