Mutual funds are one of the most accessible ways to invest. They pool money from many investors to build a diversified portfolio of stocks, bonds, or other assets, giving you broad market exposure without the need to research and select individual securities yourself.
If you're new to mutual funds or want to make sure you're approaching them the right way, here's a step-by-step guide to getting started.
How to invest in mutual funds
1. Understand how mutual funds work
A mutual fund pools money from many investors and uses it to pursue a specific investment objective. For example, it wouldn't be practical for a single investor to buy all 2,000 stocks in the Russell 2000 index, but when millions of dollars are pooled together, it becomes possible.
Mutual funds have shares like stocks, but they don't trade continuously throughout the day. Instead, they price once per day, and that's the price at which new investors buy in and existing investors sell out.

2. Choose between active and passive funds
First, you should understand the difference between an actively managed and a passively managed mutual fund.
An actively managed mutual fund employs managers who select investments for the fund. A passive mutual fund simply tracks a benchmark index, such as the S&P 500.
Let's be clear: The goal of a passively managed mutual fund is to match the performance of a benchmark index. An actively managed mutual fund aims to beat a benchmark. For this reason, passive mutual funds are also known as index funds.
In practice, however, most active mutual funds don't outperform index funds. In any given year, 40% to 50% of actively managed funds beat their benchmarks. There are some excellent active mutual funds, but it's essential to review a fund's track record before investing.
3. Understand the costs
Before you invest, you should know how much a mutual fund costs. The main type of fee you should be aware of is the expense ratio, which is the percentage of the fund's assets that goes toward annual fees. For example, a 1% expense ratio means you'll pay $100 in yearly investment fees on a $10,000 account.
Passive mutual funds tend to have expense ratios in the 0.03% to 0.25% range. Active mutual funds tend to have higher expense ratios, often in the ballpark of 1% because they have the added expense of paying investment managers.
The other consideration is how much of your portfolio should be in mutual funds. If you want to keep your investments on autopilot, there's absolutely nothing wrong with having a portfolio made up entirely of mutual funds. However, if you also want to buy stocks, mutual funds can help build a solid core for your portfolio.
6. Open an account and buy your first fund
When it comes to actually buying mutual funds, you have two choices. First, you can open an online brokerage account and place your mutual fund orders there.
Alternatively, you can open an account and buy mutual funds directly through the companies that offer them. For example, if you want to invest in a mutual fund offered by T. Rowe Price (TROW +1.35%), you can do so directly through the company.
The brokerage route is an excellent choice if you want to own mutual funds from several different firms. Plus, there is value in holding your entire portfolio of mutual funds and stocks in one place. Many top online brokers provide excellent mutual fund screening and research tools.
Alternatively, a direct account with the fund provider can be an excellent way to avoid paying a commission for funds that don't appear on your broker's no-transaction-fee (NTF) list.
7. Monitor and rebalance your portfolio
Finally, it's worth discussing what you should do after you invest in mutual funds. Specifically, it's important to occasionally assess your portfolio and rebalance if needed. Through the natural course of market movements, you might find that your asset allocation shifts.
For example, if you're targeting an allocation of 60% stocks and 40% bonds with your mutual funds, strong stock market performance could push this to 70% stocks and 30% bonds. To keep your portfolio's risk level appropriate to your situation, it's important to conduct this checkup every year or so.
Advantages and disadvantages of investing in mutual funds
There are some significant benefits of investing in mutual funds. For one thing, it allows you to invest in stocks and other assets without too much homework on your part. It can also help you avoid market "noise," since mutual funds don't trade continuously and price their shares only once per day.
There are also some drawbacks to mutual fund investing. One is that they don't trade on stock exchanges and therefore cannot be instantly bought and sold as stocks and ETFs can. Plus, mutual funds typically have minimum initial investment requirements that vary from fund to fund.
Strategies for investing in mutual funds
There's no perfect strategy for investing in mutual funds that works for everyone. But here are a few to keep in mind.
- Make it automatic: Perhaps the most effective way to invest in mutual funds is to build your investments over time by making automated contributions. For example, you might set up an automatic $50 transfer to your mutual funds on every paycheck.
- Diversify: By definition, mutual funds are diversified investments -- especially compared with buying individual stocks. But mutual funds often have a specific investment objective, so it can be smart to hold several different types. For example, you might invest in an S&P 500 index fund, a bond mutual fund, a small-cap stock fund, and an international stock fund, just to name a few possibilities.
- Rebalancing: Although mutual funds are designed as passive investment vehicles, it's still important to check your portfolio regularly. One reason is rebalancing. As mutual fund values change over time, it's important to make sure your desired asset allocation is maintained, and to make periodic adjustments when needed.
The bottom line
The bottom line is that mutual funds can be a great way to invest for the long term without worrying about selecting individual stocks and bonds. By understanding the basic concepts discussed here, you'll be equipped to construct a rock-solid mutual fund portfolio of your own.

