VTI VS VOO: WHAT'S THE DIFFERENCE AND WHICH ETF SHOULD YOU INVEST IN ?
- KidVestors
- Jun 23
- 6 min read
Updated: Jul 2
What you'll learn:
When people start learning about index investing, two ETFs usually pop up pretty quickly: VTI and VOO. And honestly, comparing VTI vs VOO can feel like comparing two very similar smoothie flavors. Both are low-cost Vanguard ETFs. Both give you exposure to the U.S. stock market. Both are popular with long-term investors.
But, they are not exactly the same.
The easiest way to think about it is this: VOO gives you the S&P 500, while VTI gives you almost the entire U.S. stock market.
But first, what Is an ETF?
An ETF, or exchange-traded fund, is a type of index fund or basket of investments that you can buy and sell on the stock market. Instead of buying one single company’s stock, an ETF lets you invest in many companies at once.
For example, if you buy one share of an ETF that tracks the U.S. stock market, you may be getting tiny pieces of hundreds or even thousands of companies. This can make investing simpler because you do not have to pick every single stock yourself.
Think of an ETF like a variety pack. Instead of choosing just one snack, you get a mix of different options in one package. With ETFs, that “package” can include stocks, bonds, or other investments depending on what the ETF is designed to track.
What Is VTI?
VTI, or the Vanguard Total Stock Market ETF, is designed to track the overall U.S. stock market. That means it includes large companies, mid-sized companies, and smaller companies too.
So instead of only buying the biggest names in America, VTI spreads your investment across thousands of U.S. companies. You still get plenty of exposure to major companies like NVIDIA, Apple, Microsoft, Amazon, and Google’s parent company Alphabet, but you also get smaller companies that may not be included in the S&P 500.
Think of VTI as buying a tiny piece of nearly the whole U.S. stock market.
What Is VOO?
VOO, or the Vanguard S&P 500 ETF, tracks the S&P 500 Index. The S&P 500 includes about 500 of the largest publicly traded companies in the United States.
This means VOO focuses more on large, established companies. These are often household names across technology, healthcare, financial services, consumer goods, energy, and other major industries.
Think of VOO as buying a tiny piece of America’s biggest public companies.
VTI vs VOO: The Main Difference
The biggest difference between VTI and VOO is the number and type of companies inside each ETF.
VTI gives you broader exposure because it includes large-cap, mid-cap, small-cap, and even some micro-cap stocks. VOO is narrower because it focuses on large-cap companies in the S&P 500.
That said, the two ETFs overlap a lot. Why? Because both are market-cap weighted. That simply means larger companies take up a bigger percentage of the fund. So even though VTI owns many more companies, its biggest holdings look very similar to VOO’s biggest holdings.
VTI Top 10 Holdings
As of the latest available holdings data in 2026, VTI’s top 10 holdings include:
Rank | Company | Ticker | Approx. Weight |
1 | NVIDIA Corp | NVDA | 6.70% |
2 | Apple Inc. | AAPL | 6.29% |
3 | Microsoft Corp | MSFT | 4.59% |
4 | Amazon.com Inc. | AMZN | 3.59% |
5 | Alphabet Inc. Class A | GOOGL | 3.04% |
6 | Broadcom Inc. | AVGO | 2.91% |
7 | Alphabet Inc. Class C | GOOG | 2.39% |
8 | Meta Platforms Inc. Class A | META | 1.90% |
9 | Tesla Inc. | TSLA | 1.69% |
10 | Micron Technology Inc. | MU | 1.50% |
Even though VTI holds thousands of companies, the largest companies still make up a meaningful part of the fund because they are so large compared to the rest of the market.
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VOO Top 10 Holdings
VOO’s top 10 holdings are very similar, but the percentages are slightly higher because VOO is more concentrated in large companies.
Rank | Company | Ticker | Approx. Weight |
1 | NVIDIA Corp | NVDA | 7.89% |
2 | Apple Inc. | AAPL | 7.04% |
3 | Microsoft Corp | MSFT | 5.14% |
4 | Amazon.com Inc. | AMZN | 4.06% |
5 | Alphabet Inc. Class A | GOOGL | 3.40% |
6 | Broadcom Inc. | AVGO | 3.26% |
7 | Alphabet Inc. Class C | GOOG | 2.71% |
8 | Meta Platforms Inc. Class A | META | 2.13% |
9 | Tesla Inc. | TSLA | 1.88% |
10 | Micron Technology Inc. | MU | 1.68% |
This is why the VOO vs VTI debate can feel a little tricky. On paper, VTI is much broader. But in practice, both ETFs are still heavily influenced by the biggest companies in the U.S. market.
The VTI and VOO Overlap
A major thing to understand is that VOO is basically already inside VTI.
Because VTI tracks the total U.S. stock market, it includes many of the companies found in the S&P 500. That means if you own both VTI and VOO, you are not necessarily getting a completely different investment. You are mostly increasing your exposure to the same large U.S. companies.
That does not mean owning both is “bad,” but it does mean you should understand the overlap before assuming you are more diversified.
Is VTI Better Than VOO?
VTI may be the better fit if you want broader U.S. stock market exposure in one ETF. Since it includes companies of different sizes, it gives you a more complete slice of the U.S. market.
For example, if smaller companies perform well over time, VTI gives you some exposure to that growth. VOO, on the other hand, is focused mainly on larger companies.
Is VOO Better Than VTI?
VOO may be the better fit if you want a simple, large-company-focused ETF. The S&P 500 is one of the most widely followed stock market indexes in the world, and many investors like VOO because it is straightforward.
You are essentially saying, “I want to invest in many of the biggest public companies in America.”
VTI vs VOO: Which Should You Choose?
For most long-term investors, the choice between VTI vs VOO comes down to preference.
Choose VTI if you want broader exposure to the entire U.S. stock market.
Choose VOO if you want exposure to the S&P 500 and are comfortable focusing on large U.S. companies.
Both ETFs can be useful long-term investing tools, but neither one gives you everything. They do not give you meaningful international stock exposure, and they do not replace bonds, cash savings, or a full financial plan.
Our Thoughts on VOO vs VTI
The VTI vs VOO debate does not have to be complicated. VOO tracks the S&P 500. VTI tracks almost the entire U.S. stock market. VTI is broader, while VOO is more focused on large companies.
The good news? Both are simple, low-cost ways to invest in U.S. stocks. The better choice depends on whether you want the full market or just the biggest slice of it.
Thankfully, at KidVestors, we help kids and teens understand investing in a way that actually makes sense. Students learn about stocks, ETFs, diversification, risk, and how the stock market works through easy-to-follow lessons and hands-on activities. They can also practice what they learn in our stock market simulator using KV Bucks, giving them a risk-free way to build confidence before investing real money in the future. Because learning about investing is one thing, but getting to practice it? That’s where the lightbulb really starts to turn on.
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FAQs About VOO vs VTI
1. What is the main difference between VTI and VOO?
The main difference is that VTI tracks nearly the entire U.S. stock market, while VOO tracks the S&P 500. VTI includes large, mid-sized, and smaller companies, while VOO focuses mainly on large U.S. companies.
2. Is VTI more diversified than VOO?
Yes. VTI is more diversified because it holds thousands of U.S. stocks across different company sizes. VOO holds around 500 of the largest U.S. companies.
3. Do VTI and VOO have the same holdings?
They have a lot of overlap, especially among their largest holdings. Since VTI includes the broader U.S. market, it also includes many of the companies found in VOO.
4. Should I own both VTI and VOO?
You can own both, but it may not add as much diversification as you think. Since VOO is largely included inside VTI, owning both increases overlap in large U.S. companies.
5. Is VTI or VOO better for beginners?
Both can be beginner-friendly because they are broad, low-cost ETFs. VTI may be better for someone who wants total U.S. market exposure, while VOO may be better for someone who wants to stick with the S&P 500.
6. Do VTI and VOO pay dividends?
Yes. Both ETFs can pay dividends from the companies they hold. Dividend amounts can change based on the underlying companies and market conditions.
7. Are VTI and VOO good for long-term investing?
They can both be useful for long-term investors who want exposure to U.S. stocks. However, all stock investments carry risk, and investors should consider their goals, timeline, and overall portfolio before choosing.
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