ITOT vs VOO
iShares Core S&P Total US Stock Market ETF vs Vanguard S&P 500 ETF
Which is better, ITOT or VOO?
VOO has been ahead.
VOO led over 1Y, 3Y, 5Y and the full window. The two have moved almost in lockstep, correlation 0.99.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | ITOT | VOO |
|---|---|---|
| Expense Ratio | 0.03%Tie | 0.03%Tie |
| AUM | $95.7B | $997.4B |
| Dividend Yield | 0.98% | 1.04% |
| Holdings | 2,502 | 509 |
| YTD Return | +11.04%Best | +11.01% |
| 1Y Return | +15.35% | +15.60%Best |
| 3Y Return (annualized) | +20.46% | +20.82%Best |
| 5Y Return (annualized) | +11.52% | +12.60%Best |
| Volatility (annualized) | 14.5% | 14.1%Best |
| Max Drawdown | -49.9% | -34.3%Best |
| $10,000 over 5 years | $17,249 | $18,101Best |
| Fund Family | iShares by BlackRock (US) | Vanguard (US) |
| Category | Equity | Equity |
| Style | Large Cap Blend | Large Cap Blend |
| Inception | Jan 20, 2004 | Sep 7, 2010 |
Not shown on this pair: Top 10 Weight.
Volatility and max drawdown are measured over the window both funds cover: Sep 9, 2010 to Sep 16, 2026 (16 years).
ITOT vs VOO growth
Month-end closes. Both lines start at 0% in the first month shown, so the gap between them is the difference in growth across that window. The full view covers the 16 years both funds cover.
ITOT vs VOO Performance
iShares Core S&P Total US Stock Market ETF (ITOT) is an ETF from iShares by BlackRock (US) and Vanguard S&P 500 ETF (VOO) is an ETF from Vanguard (US). Over the past year ITOT returned +15.35% while VOO returned +15.60%. Year to date, ITOT is up 11.04% versus a gain of 11.01% for VOO.
Over three years, ITOT compounded at +20.46% per year against +20.82% for VOO; over five years the annualized figures are +11.52% and +12.60% respectively. Across the full 16-year window we track, VOO has the edge at +13.30% annualized vs +12.99%.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
ITOT has been the more volatile fund, with annualized monthly volatility of 14.5% compared with 14.1% for VOO. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The deepest peak-to-trough decline in our data was -49.9% for ITOT and -34.3% for VOO. Drawdown depth is what each fund did in the worst stretch of the window measured above.
The two funds' monthly returns correlate at 0.99. They move almost in lockstep, so holding both mostly duplicates the same exposure.
Fees and Cost Over Time
ITOT charges 0.03% per year while VOO charges 0.03%. On a $10,000 position that is $3 vs $3 annually. On income, ITOT currently yields 0.98% against 1.04% for VOO.
Holdings Overlap
At least 96.8% of VOO's money is in holdings ITOT also owns.
Stated as a floor: for ITOT, our book for it covers 94.2% of that fund, so a holding it does not list is one we cannot count as shared. The real figure is this or higher.
Most of VOO is already inside ITOT. Owning both mostly buys the same companies twice.
455 positions in common, counted across the 1,631 positions we hold weights for in ITOT and 494 in VOO, against full books of 2,502 and 509.
Top Shared Holdings
| Stock | Weight in ITOT | Weight in VOO | Difference |
|---|---|---|---|
| NVDANvidia Corp | 6.45% | 7.55% | 1.10% |
| AAPLApple, Inc | 6.25% | 7.05% | 0.80% |
| MSFTMicrosoft Corp | 3.91% | 5.36% | 1.45% |
| AMZNAmazon.Com Inc | 3.26% | 4.13% | 0.87% |
| GOOGLAlphabet Inc,class A | 2.92% | 3.24% | 0.32% |
| AVGOBroadcom Inc | 2.41% | 2.86% | 0.45% |
| GOOGAlphabet Inc | 2.35% | 2.62% | 0.27% |
| METAMeta Platforms Inc | 1.80% | 1.90% | 0.10% |
| TSLATesla Inc | 1.61% | 1.36% | 0.25% |
| MUMicron Technology, Inc. | 1.51% | 1.44% | 0.07% |
96.8% of VOO is already inside ITOT.
You probably hold more than these two. Add the rest and see how much of the whole book is the same companies twice.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, ITOT or VOO?
ITOT has an expense ratio of 0.03% while VOO charges 0.03%. At the precision these are quoted to, they cost the same.
Which performed better, ITOT or VOO?
Over the past year ITOT returned +15.35% vs +15.60% for VOO, so VOO leads on 1-year performance. Over the longest common window we track (16 years), ITOT annualized +12.99% vs +13.30% for VOO. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, ITOT or VOO?
ITOT has been the more volatile fund at 14.5% annualized versus 14.1% for VOO. Worst drawdown: ITOT -49.9% vs VOO -34.3%.
Should I hold both ITOT and VOO?
ITOT and VOO have a monthly-return correlation of 0.99, so they move almost identically. What is left to separate them is the fee and the index each one tracks. This is information, not a recommendation.
What is the holdings overlap between ITOT and VOO?
At least 96.8% of VOO's money is in holdings ITOT also owns. Our book for ITOT is partial, so the real figure is this or higher. They hold 455 positions in common, counted across the 1,631 positions we hold weights for in ITOT and 494 in VOO.
Which pays a higher dividend, ITOT or VOO?
ITOT yields 0.98% while VOO yields 1.04%, so VOO currently pays the higher dividend yield.
Is VOO better than ITOT?
VOO led over 1Y, 3Y, 5Y and the full window. The two have moved almost in lockstep, correlation 0.99. Which one suits a particular account depends on what it is for. This is information, not a recommendation.