IOO vs VTI
iShares Global 100 ETF vs Vanguard Morningstar Total Stock Market ETF
Which is better, IOO or VTI?
Each has led over a different period.
VTI has a lower expense ratio. IOO led over 1Y, 3Y and 5Y, VTI over the full window. The two have moved almost in lockstep, correlation 0.94. VTI is less concentrated, with 33.3% of the fund in its ten largest positions against 58.7%.
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 | IOO | VTI |
|---|---|---|
| Expense Ratio | 0.40% | 0.03%Best |
| AUM | $9.1B | $666.9B |
| Dividend Yield | 0.81% | 1.03% |
| Holdings | 117 | 3,543 |
| YTD Return | +13.77%Best | +12.30% |
| 1Y Return | +22.60%Best | +16.08% |
| 3Y Return (annualized) | +25.05%Best | +21.01% |
| 5Y Return (annualized) | +16.58%Best | +12.36% |
| Volatility (annualized) | 15.6% | 15.3%Best |
| Max Drawdown | -57.9% | -56.6%Best |
| $10,000 over 5 years | $21,534Best | $17,908 |
| Top 10 Weight | 58.7% | 33.3%Best |
| Fund Family | iShares by BlackRock (US) | Vanguard (US) |
| Category | Equity | Equity |
| Style | Large Cap Blend | Large Cap Blend |
| Inception | Dec 5, 2000 | May 24, 2001 |
Volatility and max drawdown are measured over the window both funds cover: May 31, 2001 to Sep 18, 2026 (25.3 years).
IOO vs VTI 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 25.3 years both funds cover.
IOO vs VTI Performance
iShares Global 100 ETF (IOO) is an ETF from iShares by BlackRock (US) and Vanguard Morningstar Total Stock Market ETF (VTI) is an ETF from Vanguard (US). Over the past year IOO returned +22.60% while VTI returned +16.08%. Year to date, IOO is up 13.77% versus a gain of 12.30% for VTI.
Over three years, IOO compounded at +25.05% per year against +21.01% for VTI; over five years the annualized figures are +16.58% and +12.36% respectively. Across the full 25-year window we track, VTI has the edge at +8.03% annualized vs +6.36%.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
IOO has been the more volatile fund, with annualized monthly volatility of 15.6% compared with 15.3% for VTI. 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 -57.9% for IOO and -56.6% for VTI. Drawdown depth is what each fund did in the worst stretch of the window measured above.
The two funds' monthly returns correlate at 0.94. They move almost in lockstep, so holding both mostly duplicates the same exposure.
Fees and Cost Over Time
IOO charges 0.40% per year while VTI charges 0.03%. On a $10,000 position that is $40 vs $3 annually, a gap of $37 per year that compounds over a long holding period. On income, IOO currently yields 0.81% against 1.03% for VTI.
Holdings Overlap
80.5% of IOO's money is in holdings VTI also owns. 44.6% of VTI's money is in holdings IOO also owns.
Most of IOO is already inside VTI. Owning both mostly buys the same companies twice.
52 positions in common, counted across the 102 positions we hold weights for in IOO and 3,463 in VTI, against full books of 117 and 3,543.
What only one of them owns
Our book lists 1,098 positions for VTI that do not appear in our book for IOO (52.8% of the fund), and 4 for IOO that do not appear in VTI (3.2%).
Some of those will be the same company recorded under a different code in one of the two books, so the real difference in what you would own is no larger than this and may be smaller. We do not name the individual positions here for that reason.
Top Shared Holdings
| Stock | Weight in IOO | Weight in VTI | Difference |
|---|---|---|---|
| NVDANvidia Corp | 12.85% | 6.40% | 6.45% |
| AAPLApple, Inc | 11.18% | 6.29% | 4.89% |
| MSFTMicrosoft Corp | 9.05% | 4.79% | 4.26% |
| AMZNAmazon.Com Inc | 6.11% | 3.65% | 2.46% |
| GOOGLAlphabet Inc,class A | 4.78% | 2.90% | 1.88% |
| AVGOBroadcom Inc | 4.21% | 2.56% | 1.65% |
| GOOGAlphabet Inc | 3.81% | 2.31% | 1.50% |
| JPMJpmorgan Chase | 2.28% | 1.31% | 0.97% |
| LLYEli Lilly & Co. | 2.20% | 1.35% | 0.85% |
| XOMExxon Mobil Corp. | 1.60% | 0.89% | 0.71% |
80.5% of IOO is already inside VTI.
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, IOO or VTI?
IOO has an expense ratio of 0.40% while VTI charges 0.03%. VTI is the cheaper option, by $37 a year on a $10,000 investment.
Which performed better, IOO or VTI?
Over the past year IOO returned +22.60% vs +16.08% for VTI, so IOO leads on 1-year performance. Over the longest common window we track (25 years), IOO annualized +6.36% vs +8.03% for VTI. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, IOO or VTI?
IOO has been the more volatile fund at 15.6% annualized versus 15.3% for VTI. Worst drawdown: IOO -57.9% vs VTI -56.6%.
Should I hold both IOO and VTI?
IOO and VTI have a monthly-return correlation of 0.94, 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 IOO and VTI?
80.5% of IOO's money is in holdings VTI also owns. 44.6% of VTI's is in holdings IOO also owns. They hold 52 positions in common, counted across the 102 positions we hold weights for in IOO and 3,463 in VTI.
Which pays a higher dividend, IOO or VTI?
IOO yields 0.81% while VTI yields 1.03%, so VTI currently pays the higher dividend yield.
Is VTI better than IOO?
VTI has a lower expense ratio. IOO led over 1Y, 3Y and 5Y, VTI over the full window. The two have moved almost in lockstep, correlation 0.94. VTI is less concentrated, with 33.3% of the fund in its ten largest positions against 58.7%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.