Target-Date Fund

Don't want to think about rebalancing your portfolio every year? That's exactly what target-date funds are built for. You pick the fund with the year closest to when you plan to retire — say, a 2055 fund if you're eyeing retirement around then — and the fund handles everything from there.

When retirement is decades away, the fund leans heavily into stocks (typically 85-90%) for growth. As your target date gets closer, it gradually shifts toward bonds and more stable investments. By the time you retire, the mix might be 40-50% stocks and 50-60% bonds. This automatic "glide path" gives you age-appropriate risk without you lifting a finger.

Target-date funds have become the default option in most 401(k) plans — and for good reason. One fund gives you global diversification across stocks and bonds, automatic rebalancing, and a risk level that adjusts as you age. For hands-off investors, it's a solid approach.

The things to watch: expense ratios vary a lot (Vanguard charges 0.08-0.12%; some providers charge 0.50%+). Glide paths differ between companies — some are more aggressive, some more conservative. And there's the "to" vs "through" distinction: some funds hit their most conservative point at the target date, while others keep adjusting for 10-20 years after.

Target-date funds are less ideal if your situation is unusual — planning to retire very early, income that swings a lot, significant investments outside the fund, or specific tax strategies you're running. In those cases, building a custom allocation gives you more control.