A target-date fund is an all-in-one fund built for a goal in a specific year, usually retirement. A “2060” fund is aimed at someone planning to retire around 2060. It holds a mix of stock and bond funds and shifts gradually toward bonds as the date approaches. You pick one fund; it does the allocating and rebalancing.
How the glide path works
The schedule of how the mix changes over time is called the glide path. A typical pattern:
- 30+ years before the date: around 85-90% stocks
- 10 years before: roughly 60-70% stocks
- At the target date: often 40-50% stocks
- After the date: some funds keep getting more conservative for years
Exact numbers vary a lot between fund families, so two “2040” funds can carry very different risk.

“To” vs “through”
- A “to” fund reaches its most conservative mix at the target date.
- A “through” fund keeps changing for 10 to 30 years after, assuming you will still be invested during retirement.
The difference matters: in 2008, some 2010 funds still held a lot of stocks and lost more than investors expected. Read the fund’s glide path chart before you buy.
Advantages
- Simplicity: one decision, automatic rebalancing.
- Built-in diversification: US and international stocks plus bonds.
- Behavioral protection: less to tinker with.
- Default option in many 401(k) plans.
Drawbacks
- Fees vary widely. Index-based target-date funds can cost under 0.15% a year; some actively managed versions cost several times more. Compare expense ratios.
- One size fits all. The fund does not know your other savings, pension or risk tolerance.
- Duplicating holdings. Owning a target-date fund plus several other funds often undoes the careful mix. They are designed to be your whole portfolio within an account.

Is one right for you?
Target-date funds are a good fit if you want a hands-off approach in a 401(k) or IRA. You can also pick a date earlier or later than your actual retirement year to be more conservative or more aggressive. If you want more control, build your own mix with index funds. The SEC’s investor bulletin on target-date funds lists the questions to ask before buying.





