Best S&P 500 ETFs: Low-Cost Index Fund Picks

Introduction

If you’re looking to start investing but feel overwhelmed by the countless options available, S&P 500 ETFs might be the perfect starting point for your journey. These funds offer a simple way to own a piece of America’s largest companies without having to pick individual stocks or pay hefty fees.

The S&P 500 has been the backbone of many successful investment portfolios for decades. Warren Buffett, one of the world’s most successful investors, has repeatedly recommended S&P 500 index funds for average investors. In fact, he’s so confident in them that he’s instructed his own estate to invest 90% of his wife’s inheritance in a low-cost S&P 500 index fund.

What You’ll Learn

In this comprehensive guide, you’ll discover:

What S&P 500 ETFs are and why they’re ideal for beginners
The top low-cost options available today
How to choose the right S&P 500 ETF for your needs
Step-by-step instructions for making your first investment
Common mistakes to avoid and how to sidestep them

By the end of this article, you’ll have the knowledge and confidence to start building wealth through one of investing’s most reliable strategies.

The Basics

What is the S&P 500?

The S&P 500 is an index that tracks the stock performance of 500 of the largest publicly traded companies in the United States. Think of household names like Apple, Microsoft, Amazon, Google, and Tesla. These companies represent about 80% of the total value of the entire U.S. stock market.

what is an ETF?

An ETF (Exchange-Traded Fund) is like a basket that holds many different stocks. When you buy shares of an S&P 500 ETF, you’re essentially buying tiny pieces of all 500 companies in the index. It’s like getting a pre-made fruit salad instead of having to buy and prepare each fruit individually.

Key Benefits of S&P 500 ETFs

Instant Diversification: Instead of putting all your money into one company’s stock, you spread your risk across 500 companies. If one company performs poorly, the other 499 can help balance things out.

Low Costs: Most S&P 500 ETFs charge very low fees, often less than 0.1% per year. This means more of your money stays invested and working for you.

Simplicity: You don’t need to research individual companies or time the market. You’re essentially betting on the long-term success of American business.

Liquidity: ETFs trade on stock exchanges just like individual stocks, so you can buy and sell them easily during market hours.

Historical Performance: Over the long term, the S&P 500 has delivered solid returns, averaging about 10% annually over the past several decades.

Key Terminology

Expense Ratio: The annual fee charged by the fund, expressed as a percentage
Dividend Yield: The annual dividend payments as a percentage of the fund’s price
Assets Under Management (AUM): The total value of money invested in the fund
Tracking Error: How closely the ETF follows the S&P 500 index

Step-by-Step Guide to Choosing and Investing in S&P 500 ETFs

Step 1: Choose Your S&P 500 ETF (Time: 30 minutes)

Here are the top low-cost S&P 500 ETFs to consider:

SPDR S&P 500 ETF Trust (SPY)

Expense Ratio: 0.09%
The original and largest S&P 500 ETF
High trading volume makes it very liquid
Best for: Active traders who value liquidity

Vanguard S&P 500 ETF (VOO)

Expense Ratio: 0.03%
One of the lowest-cost options available
Excellent tracking of the S&P 500 index
Best for: Long-term investors focused on minimizing costs

iShares Core S&P 500 ETF (IVV)

Expense Ratio: 0.03%
Strong performance and low costs
Backed by BlackRock’s resources
Best for: Investors who want reliability and low fees

Fidelity 500 Index Fund (FXAIX)

Expense Ratio: 0.015%
Technically a mutual fund, not an ETF
Extremely low costs
Best for: Investors with Fidelity accounts

Step 2: Open a Brokerage Account (Time: 15-30 minutes)

You’ll need a brokerage account to buy ETFs. Popular beginner-friendly options include:

Fidelity: No minimum investment, excellent research tools
Charles Schwab: User-friendly platform, great customer service
Vanguard: Low-cost leader, perfect for long-term investing
E*TRADE: Good mobile app, comprehensive educational resources

Most major brokers now offer commission-free ETF trades, so focus on finding a platform you’re comfortable using.

Step 3: Fund Your Account (Time: 3-5 business days)

You can typically fund your account through:

Bank transfer (ACH) – usually free but takes a few days
Wire transfer – faster but may have fees
Check deposit – slower but straightforward

Start with an amount you’re comfortable investing long-term. Remember, you can always add more money later.

Step 4: Place Your Order (Time: 5 minutes)

When you’re ready to buy:
1. Log into your brokerage account
2. Search for your chosen ETF using its ticker symbol
3. Select “Buy”
4. Choose between a market order (buys immediately at current price) or limit order (buys only at your specified price)
5. Enter the number of shares or dollar amount you want to invest
6. Review and submit your order

Pro Tip: For beginners, dollar-cost averaging is a great strategy. This means investing the same amount regularly (like $500 every month) regardless of market conditions.

Tools and Resources You’ll Need

Computer or smartphone with internet access
Valid identification for account opening
Bank account information for funding
Basic understanding of market orders vs. limit orders

Common Questions Beginners Have

“Should I invest all my money at once or gradually?”

For beginners, dollar-cost averaging often works better psychologically. It reduces the stress of trying to time the market and helps smooth out short-term volatility. However, historically, investing a lump sum immediately has slightly outperformed dollar-cost averaging because markets tend to go up over time.

“What if the market crashes right after I invest?”

Market downturns are normal and temporary. The S&P 500 has experienced many crashes throughout history but has always recovered to reach new highs. The key is to stay invested and avoid panic selling. If you’re investing for the long term (10+ years), short-term volatility becomes much less important.

“How much should I invest?”

A common rule of thumb is to invest 10-20% of your income, but only invest money you won’t need for at least 5-10 years. Always maintain an emergency fund of 3-6 months’ expenses in a savings account before investing.

“Is there a minimum amount needed to start?”

Most S&P 500 ETFs don’t have minimum investment requirements beyond the price of one share, which is typically under $500. Some brokers even offer fractional shares, allowing you to invest with as little as $1.

Mistakes to Avoid

Chasing Performance

The Mistake: Switching between different S&P 500 ETFs based on short-term performance differences.

Why It’s Wrong: All S&P 500 ETFs track the same index, so performance differences are minimal and temporary.

How to Avoid: Choose one high-quality, low-cost S&P 500 ETF and stick with it. Focus on expense ratios rather than short-term performance.

Trying to Time the Market

The Mistake: Waiting for the “perfect” time to invest or selling when markets get volatile.

Why It’s Wrong: Nobody can consistently predict market movements. Even professional investors struggle with market timing.

How to Avoid: Use dollar-cost averaging and maintain a long-term perspective. Set up automatic investments to remove emotion from the equation.

Ignoring Expense Ratios

The Mistake: Not paying attention to the annual fees charged by different ETFs.

Why It’s Wrong: Even small fee differences compound over time. A 0.5% difference in fees can cost tens of thousands of dollars over decades.

How to Avoid: Always compare expense ratios and choose funds with fees below 0.2% when possible.

Panic Selling During Market Downturns

The Mistake: Selling your investments when markets decline.

Why It’s Wrong: This locks in losses and prevents you from participating in the eventual recovery.

How to Avoid: Remember that volatility is normal. Consider market downturns as opportunities to buy more shares at lower prices.

Not Having Clear Goals

The Mistake: Investing without understanding your timeline and risk tolerance.

Why It’s Wrong: This leads to emotional decision-making and inappropriate investment choices.

How to Avoid: Define your investment goals, timeline, and risk tolerance before investing. S&P 500 ETFs are best for long-term goals (5+ years).

Getting Started

First Steps to Take Today

1. Educate Yourself: Spend 30 minutes reading about the brokers mentioned earlier and choose one that feels right for you.

2. Set Up Your Emergency Fund: Before investing, ensure you have 3-6 months of expenses saved in a high-yield savings account.

3. Define Your Goals: Write down what you’re investing for (retirement, house down payment, etc.) and your timeline.

4. Open a Brokerage Account: This usually takes 15-30 minutes online and requires basic personal information.

5. Start Small: Begin with an amount you’re comfortable with, even if it’s just $100-500.

Minimum Requirements

Age: Must be 18 or older (some brokers offer custodial accounts for minors)
Initial Investment: As low as the price of one share (often under $500)
Income: No minimum income requirements
Credit Check: Generally not required for investment accounts

Recommended Resources

Books for Beginners:

“The Bogleheads’ Guide to Investing” by Taylor Larimore
“A Random Walk Down Wall Street” by Burton Malkiel
“The Simple Path to Wealth” by JL Collins

Websites and Tools:

SEC.gov investor education resources
Morningstar.com for fund research
Your chosen broker’s educational materials

Podcasts:

“The Investors Podcast”
“Chat with Traders”
“Motley Fool Money”

Next Steps

Advancing Your Knowledge

Once you’re comfortable with S&P 500 investing, consider exploring:

International Diversification: Adding international index funds to your portfolio can provide additional diversification benefits.

Total Stock Market Funds: These include small and mid-cap companies in addition to the S&P 500, providing even broader diversification.

Asset Allocation: Learning how to balance stocks with bonds based on your age and risk tolerance.

Tax-Advantaged Accounts: Understanding how to use 401(k)s, IRAs, and Roth IRAs to minimize taxes on your investments.

Building a Complete Portfolio

While S&P 500 ETFs make excellent core holdings, a complete portfolio might include:

70-80% U.S. stocks (S&P 500 ETFs)
10-20% international stocks
10-20% bonds (for stability)

Monitoring Your Investments

Check your portfolio quarterly, not daily. Set up automatic investments to continue building wealth consistently. Rebalance annually if your target allocations drift significantly.

FAQ

1. What’s the difference between S&P 500 ETFs and S&P 500 mutual funds?

ETFs trade on exchanges like stocks throughout the day, while mutual funds only trade once daily after markets close. ETFs often have slightly lower expense ratios and no minimum investment requirements, making them more flexible for beginners.

2. Are dividends from S&P 500 ETFs automatically reinvested?

Most brokers offer dividend reinvestment programs (DRIPs) that automatically use dividend payments to buy more shares. This is usually free and helps compound your returns over time. Check with your broker to enable this feature.

3. Can I lose all my money investing in S&P 500 ETFs?

While the value of your investment can fluctuate, losing everything would require all 500 companies in the index to become worthless simultaneously, which is extremely unlikely. However, significant losses are possible in the short term during market downturns.

4. How often should I check my S&P 500 ETF investments?

For long-term investors, checking quarterly or even annually is sufficient. Daily monitoring can lead to emotional decision-making. Focus on your long-term goals rather than short-term market movements.

5. Do I need to pay taxes on my S&P 500 ETF investments?

You’ll owe taxes on dividends received and any capital gains when you sell shares. However, ETFs are generally tax-efficient, and you won’t owe taxes on unrealized gains (increases in value that you haven’t sold). Consider using tax-advantaged accounts like IRAs to defer or eliminate taxes.

6. What happens to my S&P 500 ETF if the fund company goes out of business?

ETFs are legally separate from their management companies. The underlying stocks are held by a custodian bank, so your investment would be protected. In the unlikely event of a fund closure, you’d typically be able to sell your shares or transfer them to a similar fund.

Conclusion

S&P 500 ETFs offer one of the simplest and most effective ways to start building long-term wealth. By choosing a low-cost option like VOO or IVV, investing regularly, and maintaining a long-term perspective, you’re positioning yourself to benefit from the growth of America’s largest companies.

Remember, successful investing isn’t about picking the perfect fund or timing the market perfectly. It’s about starting early, staying consistent, and letting the power of compounding work in your favor over time. The hardest part is often just getting started, but once you take that first step, you’re on your way to building a more secure financial future.

The best time to start investing was 20 years ago. The second-best time is today.

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Disclaimer: This article is for educational purposes only and does not constitute financial advice. Always do your own research and consider consulting a licensed financial advisor before making investment decisions.