You don't need to pick the next hot stock to start building wealth. For a lot of everyday investors, the simplest first step into the market is an index fund: one purchase that spreads your money across many companies at once, usually at a lower cost than funds run by a stock picker.
Here is how index funds work, what to look for, the risks nobody should skip over and how to get your money foundation ready before you invest your first dollar.
Flex Fuel does not promise investment returns. This article is general education, not investment, tax or legal advice. All investing involves risk, including the possible loss of the money you invest. Consider talking with a licensed professional about your situation.
What is an index fund?
The SEC's investor education site, Investor.gov, defines an index fund as a mutual fund, exchange-traded fund (ETF) or unit investment trust that follows a passive strategy designed to achieve approximately the same return as a particular index, before fees. An index is simply a list of investments that tracks a slice of the market, such as a group of large U.S. companies or a group of bonds.
Instead of a manager trying to beat the market, the fund holds the investments in its index (or a representative sample of them) and aims to match it.
Why so many beginners start here
Investor.gov notes that passive management usually means less trading, lower transaction costs, more favorable tax treatment (fewer realized capital gains) and lower fees than actively managed funds. It also warns that over time, higher fees and expenses can significantly lower your returns.
Index funds can also make diversification easier. Investor.gov describes diversification as spreading money among different investments to reduce risk, or "don't put all your eggs in one basket." Funds let you own a small piece of many investments with one purchase.
Index mutual funds vs. index ETFs
Both can track the same index. The difference is mostly how you buy and sell them. According to Investor.gov's guide to mutual funds and ETFs:
| Index mutual fund | Index ETF | |
|---|---|---|
| How you buy | From the fund or through a broker | On a stock exchange through a brokerage account |
| Price you pay | The next calculated net asset value (NAV), plus any fees | The market price, which can be a bit above or below NAV |
| Reinvesting dividends | Usually simple to set up | Can be more complicated, depending on your broker |
| Taxes | Can pay out capital gains distributions | Many ETFs typically have fewer capital gains distributions |
Neither is automatically better. Pick the one that fits the account you are using and how you like to invest.
The fees that matter
Fees come out of your returns every year, whether the market is up or down. The SEC's mutual fund and ETF fees bulletin explains the main ones:
- Expense ratio. The fund's total annual operating expenses, shown as a percentage of its assets. You will find it in the prospectus fee table.
- Sales loads. Commissions some mutual funds charge when you buy or sell. "No-load" does not mean no fees.
- Other costs. Brokerage commissions, account fees and, for ETFs, the gap between market price and NAV.
Here is simple math to show why this matters. On a $10,000 balance, a 1% expense ratio costs about $100 a year, while a 0.10% ratio costs about $10, before any growth. Over decades, that difference compounds. You can compare real funds side by side with FINRA's Fund Analyzer.
Risks you need to know
Index funds are not a savings account. Investor.gov is clear that mutual funds and ETFs are not guaranteed or insured by the FDIC or any other government agency, and you can lose some or all of the money you invest. A stock index fund can rise and fall quickly in the short term, and past performance does not predict future returns.
A few more things to watch:
- Narrow funds are less diversified. A fund that tracks one industry, or even a single stock, carries more risk than a broad one.
- Overlap. Owning several funds that hold the same big companies is not real diversification. Check each fund's top holdings.
- Time horizon. Money you need in the next year or two, like a down payment or rent, generally belongs somewhere less volatile.
How to start investing in index funds, step by step
1. Build your foundation first
Before you invest, have some emergency savings so a surprise bill does not force you to sell at a bad time. Our guide to building an emergency fund while fixing your credit can help. Tackling high-interest debt first is often smart too; see debt snowball vs. debt avalanche.
Your credit is part of that foundation. Strong credit can lower what you pay on car notes, cards and mortgages, which frees up more cash to invest. Check your credit reports regularly; Flex Fuel clients use SmartCredit to see their reports and scores in one place.
Ready to start investing but want your money foundation solid first? Book a time to map out your credit, budget and investing next steps with us.
2. Choose the right account
- Workplace retirement plan. If your job offers a 401(k) or similar plan, check whether index funds are among its investment options.
- IRA. A Roth or traditional IRA has tax advantages for retirement savings. Read about starting a Roth IRA while fixing your credit.
- Regular brokerage account. Flexible, but without retirement tax perks.
Self-employed? See our guide to SEP IRA vs. Solo 401(k).
3. Pick a broad, low-cost fund
Read the prospectus, check the expense ratio and look at what the fund actually holds. A target date fund is another option some people use; Investor.gov notes these shift their mix over time but may carry a double layer of fees if they invest in other funds.
4. Automate it
Investor.gov describes dollar-cost averaging as investing equal amounts at regular intervals regardless of market ups and downs, which means you buy more shares when prices are low and fewer when prices are high. Setting up an automatic transfer each payday turns investing into a habit.
5. Check in, don't stress out
Review once or twice a year. Investor.gov notes that some experts suggest rebalancing every six or 12 months. If someone is selling you an investment, look them up on FINRA's BrokerCheck first.
How Flex Fuel helps
Flex Fuel helps clients nationwide (we are based in Atlanta) get their credit, budget and money habits in order, so investing becomes the next step in a real plan instead of a guess. We do not pick investments for you, but we help you build the foundation. Explore our services and see how our guarantee works.
Ready to stop waiting and start building? Book a complimentary strategy session. We will map out your money foundation and next steps toward investing.
Book a Consultation ›Frequently asked questions
Are index funds good for beginners?
Many beginners use them because, as Investor.gov explains, index funds usually have lower fees than actively managed funds and make it easier to diversify. They still carry market risk, and you can lose money.
How much money do I need to start investing in index funds?
It varies by fund and broker. Investor.gov notes that many mutual funds set relatively low minimums, and ETF shares can often be bought for relatively low dollar amounts. Check the fund's and broker's requirements.
Can you lose money in an index fund?
Yes. Index funds are not insured by the FDIC or any government agency, and their value moves with the investments they hold. Investing for longer time horizons and diversifying are ways people manage that risk, but neither removes it.
