IVV vs VOO: fees, holdings and returns
IVV and VOO both track the S&P 500 and hold the same about 500 large US companies. Their fees are the same or nearly so, and their returns have been almost the same, so the choice often comes down to which brokerage or fund family someone already uses. Over the same dates since September 2010, IVV returned about 14.8% a year and VOO returned about 14.8% a year.
Written by the Tactfolio research team. Fund facts checked October 16, 2026. Prices through October 16, 2026.
Key points
- Both charge 0.03% a year.
- IVV started trading in May 2000. VOO started in September 2010.
- Worst drops since 2010: IVV −33.9%, VOO −34.0%.
- Daily correlation: 1.00 (1 means they always move together).
What is the difference between IVV and VOO?#
There is very little difference. IVV comes from iShares (BlackRock) and VOO from Vanguard. Both follow the same index with the same companies. Small gaps in returns come from fees, cash handling and how each fund lends out its shares.
| Fact | IVV | VOO |
|---|---|---|
| Full name | iShares Core S&P 500 ETF | Vanguard S&P 500 ETF |
| Issuer | iShares (BlackRock) | Vanguard |
| Expense ratio | 0.03% a year | 0.03% a year |
| Started trading | May 15, 2000 | September 7, 2010 |
| Tracks | S&P 500 Index | S&P 500 Index |
| Holdings | 505 holdings as of October 15, 2026 | 505 holdings as of September 30, 2026 |
| Type | US stocks, ETF | US stocks, ETF |
Fund facts checked on the iShares (BlackRock) IVV page and the Vanguard VOO page.
Is IVV or VOO cheaper?#
Both charge 0.03% a year. On $10,000, that is about $3 a year for IVV and $3 for VOO. The fund takes its fee out of its own value a little each day, so you never get a bill.
IVV vs VOO performance over the same dates#
Both funds are measured from September 2010 to October 2026, the dates both traded. IVV returned about 14.8% a year and VOO returned about 14.8% a year. VOO came out ahead over this period, which does not mean it will again.
| Measure | IVV | VOO |
|---|---|---|
| $10,000 grew to | $91,935 | $92,175 |
| Total return | 819.4% | 821.7% |
| Return per year (CAGR) | 14.8% | 14.8% |
| Worst drop from a high | −33.9% | −34.0% |
| Volatility (how much it swings) | 17.0% | 16.9% |
| Last 12 months | 16.8% | 16.8% |
| Last 3 years, per year | 22.1% | 22.1% |
| Last 5 years, per year | 12.9% | 12.9% |
| Last 10 years, per year | 15.5% | 15.5% |
Prices through October 16, 2026. Figures use daily closing prices adjusted for splits, with dividends reinvested. They do not include taxes or the cost of buying and selling. Past results do not tell you what will happen next.
IVV and VOO returns by year#
| Year | IVV | VOO |
|---|---|---|
| 2026 (part of the year) | 12.9% | 12.8% |
| 2025 | 17.8% | 17.8% |
| 2024 | 24.9% | 25.0% |
| 2023 | 26.3% | 26.3% |
| 2022 | −18.2% | −18.2% |
| 2021 | 28.8% | 28.8% |
| 2020 | 18.4% | 18.3% |
| 2019 | 31.3% | 31.4% |
| 2018 | −4.5% | −4.5% |
| 2017 | 21.8% | 21.8% |
| 2016 | 11.5% | 12.2% |
| 2015 | 1.3% | 1.3% |
| 2014 | 13.6% | 12.9% |
| 2013 | 32.3% | 32.4% |
| 2012 | 16.1% | 16.0% |
| 2011 | 1.9% | 1.9% |
| 2010 (part of the year) | 14.6% | 14.8% |
Which fell further in bad times?#
A drawdown is how far a fund falls from its last high point. IVV’s worst fall was −33.9%, from February 19, 2020 to March 23, 2020. It got back to that high on August 10, 2020.
VOO’s worst fall was −34.0%, from February 19, 2020 to March 23, 2020. It got back to that high on August 10, 2020.
Their daily moves had a correlation of 1.00. A correlation of 1 means two funds always move up and down together. Near 0 means they move on their own. So holding both adds little variety.
Why people choose IVV or VOO#
IVV. People who already use iShares funds, or a brokerage that favors them, often pick IVV.
VOO. People who already use Vanguard funds often pick VOO.
Strategies that hold IVV or VOO#
No classic strategy holds IVV or VOO yet.
Other funds like IVV and VOO#
Each fund has more funds that hold the same kind of investments, ranked by how closely they move with it: IVV alternatives and VOO alternatives.
Test a mix of IVV and VOO#
Open the builder, add IVV and VOO, and give each a weight, such as 50% and 50%. The backtest shows how the mix would have done, with its worst drop, on daily prices. You can also add a rule, for example to switch between them, and compare. Read the full pages for IVV and VOO, or see more ETF comparisons.
The details#
Both funds use Tactfolio’s stored daily prices, adjusted for splits, with dividends reinvested. They are compared only on days both traded, starting the later fund’s first day, so neither gets a head start. Correlation uses daily returns over the same days. Read what a backtest simulates for more on these measures.
Common questions#
Is IVV the same as VOO?#
They are very close. Both track the S&P 500 with the same companies and the same yearly fee. Their returns have differed by only small amounts.
Why do IVV and VOO returns differ at all?#
Small differences in cash handling, share lending and trading costs inside each fund cause tiny gaps. Over a year, the gap is usually a few hundredths of a percent.
Which is cheaper, IVV or VOO?#
Both charge 0.03% a year. Fees come from each issuer and were checked on October 16, 2026.
Which did better, IVV or VOO?#
From September 2010 to October 2026, IVV returned about 14.8% a year and VOO returned about 14.8% a year, with dividends reinvested. Their worst drops were −33.9% and −34.0%. Past returns do not tell you what comes next.