You can invest in the S&P 500 through index funds, ETFs, or individual stocks, and most people start with a brokerage account

The S&P 500 is a list of 500 large U.S. companies. You do not buy "the S&P 500" itself — instead, you buy funds or individual stocks that track it or belong to it. The easiest route for most people is an index fund or exchange-traded fund (ETF) that mirrors the S&P 500's holdings. You open a brokerage account (online, at a bank, or through an investment firm), deposit money, and buy shares of the fund. The fund then holds all 500 stocks for you.

If you want to own individual S&P 500 companies instead, you can buy their stock directly through the same brokerage account. Most people who are new to investing start with an index fund because it spreads risk across 500 companies at once, rather than betting on a single stock.

Key Takeaways

  • Index funds and ETFs that track the S&P 500 let you own all 500 companies with a single purchase, and they charge lower fees than actively managed funds.
  • You need a brokerage account to buy any S&P 500 investment — open one online with firms like Fidelity, Vanguard, Charles Schwab, or your bank.
  • ETFs trade like stocks during market hours, while index mutual funds settle at the end of the day, so the timing of your purchase affects the price you pay.
  • Individual S&P 500 stocks can be bought one at a time, but this requires more research and monitoring than buying a fund that holds all 500.

Index funds versus ETFs: which S&P 500 fund to choose

Both index funds and ETFs hold the same 500 stocks in the same proportions, so the difference is how they trade and what they cost. An index mutual fund is priced once per day, after the market closes. You place an order during the day, but you do not know the exact price until that evening. An ETF trades throughout the day like a stock, so you see the price in real time and can buy or sell whenever the market is open.

Fees matter over time. Most S&P 500 index funds and ETFs charge between 0.03% and 0.20% per year — meaning if you invest $10,000, you pay $3 to $20 annually. Some charge nothing. Actively managed funds that try to beat the S&P 500 often charge 0.50% to 1.00% or more. Over decades, that difference compounds. Common S&P 500 index funds include the Vanguard 500 Index Fund, the Fidelity 500 Index Fund, and the SPDR S&P 500 ETF (ticker: SPY). Compare expense ratios (the annual fee percentage) before you choose.

Opening a brokerage account

You need a brokerage account to buy any S&P 500 investment. A brokerage is a company that holds your money and executes your trades. Most major banks offer brokerage services, and standalone brokerages like Fidelity, Vanguard, Charles Schwab, E-Trade, and TD Ameritrade are common choices. Many charge no account fees or minimum deposit.

The account setup takes 10 to 20 minutes online. You provide your name, address, Social Security number, and employment information. The brokerage verifies your identity and opens the account. You then link a bank account and transfer money into the brokerage. Once the money settles (usually one to three business days), you can place your first trade.

If you are under 18, you cannot open a brokerage account in your own name. A parent or guardian can open a custodial account (sometimes called an UGMA or UTMA account) on your behalf, and you can invest through it.

Buying S&P 500 index funds step by step

Once your account is funded, buying an index fund takes a few clicks. Log into your brokerage account and search for the fund by name or ticker symbol. For example, search "Vanguard 500 Index Fund" or "VOO" (its ticker). The fund's page shows its holdings, expense ratio, and performance history. Click "Buy" or "Invest", enter the dollar amount or number of shares you want, and confirm the order.

If you are buying a mutual fund, your order goes through after the market closes that day, and you receive shares at that day's closing price. If you are buying an ETF, your order executes when ready during market hours at the current price. After the trade settles (usually two business days), the shares appear in your account and you own them.

You can set up automatic monthly or weekly investments if your brokerage offers it. This is called dollar-cost averaging — you invest the same amount on a fixed schedule regardless of whether prices are high or low. Many people use this method to build their S&P 500 position over time without trying to time the market.

Tax accounts that hold S&P 500 investments

The type of account you use affects how much you pay in taxes on your gains. A taxable brokerage account has no contribution limits and no withdrawal restrictions, but you owe taxes on dividends and capital gains each year. A 401(k) (through your employer) and an IRA (individual retirement account) let you invest in S&P 500 funds with tax advantages — you either deduct contributions now or withdraw tax-free later, depending on the account type.

If you are just starting out and do not have access to a 401(k), a Roth IRA is often the best choice. You contribute up to $7,000 per year (the limit varies by year), and all growth is tax-free when you withdraw after age 59½. You can invest that $7,000 entirely in an S&P 500 index fund. A traditional IRA works similarly but taxes you on withdrawals instead of contributions.

If your employer offers a 401(k) with a match (information programs if you contribute), prioritize that first. Then max out an IRA if you can. Any money left over goes into a taxable brokerage account.

Buying individual S&P 500 stocks

If you want to own specific companies in the S&P 500 — Apple, Microsoft, Coca-Cola, or others — you can buy their stock directly. Search for the company's ticker symbol in your brokerage account, enter the number of shares you want, and place the order. The trade executes during market hours at the current price.

Individual stock ownership requires more research than buying a fund. You need to understand the company's business, read its financial statements, and monitor news that affects its price. A single bad quarter or management change can hurt your investment. Most financial advisors recommend that new investors keep individual stocks to a small portion of their portfolio — perhaps 10% to 20% — and hold the rest in diversified index funds.

Dividend-paying S&P 500 stocks (like Johnson & Johnson or Procter & Gamble) send you cash payments quarterly. These dividends are taxed as income in a taxable account, though they are tax-deferred in a 401(k) or IRA.

Common mistakes to avoid

Trying to time the market — buying when you think prices are low and selling when you think they are high — usually backfires. Most people buy after prices have already risen and sell after they have already fallen. Automatic monthly investing removes this temptation and historically outperforms attempts to time the market.

Paying too much in fees is another trap. A fund charging 1% per year instead of 0.10% costs you tens of thousands of dollars over 30 years on a $100,000 investment. Always check the expense ratio before you buy.

Panic selling during market downturns locks in losses. The S&P 500 has recovered from every major decline in its history, but only if you stayed invested. If you cannot tolerate seeing your account value drop 20% or 30% in a bad year, you may be taking on more risk than suits your situation.

Frequently Asked Questions

Do I need a lot of money to start investing in the S&P 500?

No. Most brokerages have no minimum deposit, and you can buy a single share of an ETF for the current price of that share (often $300 to $500). Some brokerages let you buy fractional shares, so you can invest any dollar amount, even $50 or $100.

What is the difference between VOO, SPY, and IVV?

All three are ETFs that track the S&P 500 and hold the same 500 stocks. VOO (Vanguard S&P 500 ETF) charges 0.03% annually, SPY (SPDR S&P 500 ETF) charges 0.09%, and IVV (iShares Core S&P 500 ETF) charges 0.03%. The difference in fees is small, so pick whichever your brokerage makes easiest to buy.

Can I lose all my money investing in the S&P 500?

Extremely unlikely. The S&P 500 would need to drop to zero, which would mean all 500 large U.S. companies failed simultaneously. That has never happened. You can lose money if you buy high and sell low, or if you need the money during a downturn and are forced to sell at a loss. But if you hold for decades, historical data shows the S&P 500 has always recovered and grown.

Should I invest in the S&P 500 or individual stocks?

If you are new to investing, start with an S&P 500 index fund. It requires no stock-picking skill, spreads risk across 500 companies, and has lower fees. Once you have built a solid foundation and learned how to read financial statements, you can add individual stocks if you want. Most successful investors hold mostly index funds and only a small portion in individual picks.

Can I invest in the S&P 500 through my 401(k)?

Yes. Most 401(k) plans offer S&P 500 index funds as one of the investment choices. Check your plan's menu of options and look for a fund with "S&P 500" or "large cap index" in the name. Investing through a 401(k) is often better than a taxable account because gains grow tax-deferred.