IVV vs. VOO | Are These S&P 500 ETFs Overrated or Worthwhile Investments?

The S&P 500 (Standard & Poor’s 500), which tracks the 500 largest publicly traded U.S. companies, is one of the most popular and commonly used indexes to track stock performance. Many investors use the S&P 500 …

laptop screen showing stock graph

The S&P 500 (Standard & Poor’s 500), which tracks the 500 largest publicly traded U.S. companies, is one of the most popular and commonly used indexes to track stock performance. Many investors use the S&P 500 as a benchmark against their portfolio, and the infamous Warren Buffett himself has often said that ordinary investors should invest in S&P 500 index funds.

With the rise in popularity of S&P 500 exchange-traded funds (ETFs), there is no shortage of options to choose from. Given how crowded the S&P 500 ETF space is, understanding which ones are better for your investing strategy can be difficult and confusing, especially for beginners.

We’ll break down all the key similarities and differences in two leading S&P 500 ETFs – IVV and VOO – so you can decide which one is best for you.

An Overview of IVV vs. VOO

Both the iShares Core S&P 500 ETF (IVV) and Vanguard S&P 500 ETF (VOO) track the performance of the S&P 500, so if we look at the funds on a macro level, they are relatively similar in terms of their historical performance, the number of holdings, fund composition, and sector exposure. Since both funds are ETFs, that means you can buy and sell them as if they are individual stocks during trading hours.

Below is a side-by-side comparison of basic information about the two funds, including the issuer, expense ratio, and assets under management.

IVV vs VOO comparison
IVV vs VOO | ETF.com

Is There a Difference Between IVV and VOO?

Now that we have given a brief overview of both funds, let’s take a more detailed look at IVV and VOO in a head-to-head comparison.


IVV is issued by BlackRock Fund Advisors, an investment advisory firm based out of San Francisco. VOO is offered by Vanguard, one of the largest providers of mutual funds and ETFs globally. An interesting fact about Vanguard is that the company was founded by Jack Bogle, who is credited for pioneering passive investing through index funds. He is also known to have created the first index fund.

Inception Date

The inception date for VOO is September 7, 2010, while the inception date for IVV is May 15, 2000.

Trading Volume

IVV has a 90-day average trading volume of 4,820,000 compared to VOO’s 90-day average trading volume of 4,409,713, according to Fidelity. On any given day, IVV typically has a roughly 9% higher trading volume than VOO, making it slightly more popular for investors and traders. This also means that IVV likely has a narrower bid-ask spread, which is the difference between the price buyers are willing to purchase the fund, and the price sellers are willing to sell the fund for.

Expense Ratio

The expense ratios for VOO and IVV are both 0.03%. This means that for every $10,000 you invest in VOO or IVV, you are charged $3 in fees. Compared to other ETFs and index funds, such as the SPDR S&P 500 ETF Trust (SPY), this fee is considered relatively inexpensive.

Assets Under Management

As of December 21, 2022, IVV has $311.97B of assets under management, while VOO has net assets of $278.7B.

Fund Composition

Below is a side-by-side comparison of the top ten holdings of VOO and IVV.

IVV vs VOO Holdings
IVV vs VOO Top 10 Holdings | ETF.com

As we can see in the charts, both funds have very similar top 10 holdings, though the percentages allocated towards each stock slightly vary. Their top 10 holdings also disproportionately comprise technology companies, such as Apple, Microsoft, Amazon, and Alphabet (Google).

In terms of weighting, the top 10 holdings make up roughly 25% of both VOO and IVV’s portfolios, which is a significant amount. However, their largest holding, Apple, makes up less than 6.5% of their respective portfolios, making both funds well diversified for anyone interested in investing in large U.S. companies.


Because the biggest holdings for VOO and IVV are the same and both funds track the same index, they have relatively similar historical performances.

Below is a comparison of their performances over the course of 10 years.

IVV vs VOO performance
IVV vs VOO Performance | ETF.com

Looking at the charts, we can see that VOO typically slightly outperforms IVV in the past few years. However, the difference is minimal and almost negligible if we are looking at the 10-year timeframe.

Sector Exposure

Next, let’s take a look at the sector exposure for VOO and IVV. In the charts below, we can see that the technology sector makes up about 1/4 of both ETFs’ portfolios, followed by healthcare, financials, consumer discretionary, and industrials.

VOO Sector Exposure
VOO Sector Exposure | Fidelity
IVV Sector Exposure
IVV Sector Exposure | Fidelity

While both ETFs are diversified across different sectors, it is important to note that they have high exposure to tech companies. Critics of S&P 500 ETFs argue that these ETFs give the illusion of diversity due to their overexposure to tech and other growth companies that have high valuations. Depending on your interest in the technology sector, keeping this detail in mind will help decide how much to invest in S&P 500 ETFs.

Market Capitalization

IVV is made up of 48.24% giant-cap stocks, 35.65% large-cap, 15.98% medium-cap stocks, and 0.13% small-cap. VOO is made up of 48.28% giant-cap stocks, 35.63 large-cap stocks, 15.96% mid-cap, and 0.13% small-cap. The fact that both ETFs have nearly identical holdings in terms of market capitalization comes as no surprise as they are tracking the same index.

Dividend Payout

As of 2021, IVV has a dividend yield of 1.67% paid out quarterly, whereas VOO has a dividend yield of 1.56% paid out quarterly. However, if we look at their dividend payout history, IVV has typically had a slightly better track record than dividends paid out to shareholders.

Investment Minimum

There is currently no investment minimum for either fund. Some brokerages, such as M1 Finance, SoFi Wealth, and Public, also offer the option of buying fractional shares, which means you can begin investing in either fund with as little as $20.

Which S&P 500 ETF Should You Invest in?

After considering all the data, we conclude that you can’t go wrong with either fund.

The differences between IVV and VOO are pretty small, so investing in either will result in nearly indistinguishable returns. Both funds have similar historical performances, holdings, sector and market capitalization exposure, and the same expense ratio. Investing in one or the other will not make or break your portfolio. However, because both funds hold many identical assets, you will most likely be better off choosing one and sticking to it, so you do not get double exposure to the same investments.

I currently invest in VOO in my taxable brokerage account on Webull, though most of my holdings are in individual technology and growth stocks. Given my age, work industry, and risk profile, I tend to take on riskier investments in hopes of getting higher returns and building wealth faster.

Other S&P 500 ETFs to Consider

Other S&P 500 ETFs to consider are the SPDR S&P 500 ETF Trust (SPY) and iShares Core S&P 500 ETF (IVV). While SPY has a higher expense ratio, at 0.0945%, SPY is currently the largest S&P 500 ETF in the market, which means a higher trading volume and a smaller bid-ask spread. IVV is another popular S&P 500 ETF with an expense ratio of 0.03%, making it a great option for people interested in investing in large-cap American companies as well.

The Bottom Line

All things considered, there is no right or wrong answer in terms of deciding between Vanguard’s VOO or Blackrock’s IVV. Both are great options that you could invest in.

As an investor, how much you decide to invest in either of these funds depends on your financial goals, risk tolerance, and your level of financial literacy. If you want to be a long-term passive investor and focus on more stable and larger American companies, then either VOO or IVV would be a safe bet for you. If you want to be more diversified, you may want to allocate some of your money towards a total market fund or an international market fund. If you are a risk-taker, then consider handpicking individual stocks after doing your own due diligence. When it comes to investing and building wealth, how you go about your financial journey ultimately depends on your financial preferences and goals.

We are not financial advisors. The content on this website and our YouTube videos are for educational purposes only and merely cite our own personal opinions. In order to make the best financial decision that suits your own needs, you must conduct your own research and seek the advice of a licensed financial advisor if necessary. Know that all investments involve some form of risk and there is no guarantee that you will be successful in making, saving, or investing money; nor is there any guarantee that you won't experience any loss when investing. Always remember to make smart decisions and do your own research!

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