OEF vs VOO
iShares S&P 100 ETF vs Vanguard S&P 500 ETF
Which is better, OEF or VOO?
Nearly the same fund. VOO costs less.
VOO has a lower expense ratio. OEF led over 3Y, 5Y and the full window, VOO over 1Y. The two have moved almost in lockstep, correlation 0.99. VOO is less concentrated, with 37.6% of the fund in its ten largest positions against 52.1%.
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 | OEF | VOO |
|---|---|---|
| Expense Ratio | 0.20% | 0.03%Best |
| AUM | $20.3B | $997.4B |
| Dividend Yield | 0.85% | 1.04% |
| Holdings | 106 | 509 |
| YTD Return | +11.66% | +12.25%Best |
| 1Y Return | +16.52% | +17.03%Best |
| 3Y Return (annualized) | +23.30%Best | +21.25% |
| 5Y Return (annualized) | +14.62%Best | +13.08% |
| Volatility (annualized) | 14.3% | 14.1%Best |
| Max Drawdown | -31.4%Best | -34.3% |
| $10,000 over 5 years | $19,783Best | $18,490 |
| Top 10 Weight | 52.1% | 37.6%Best |
| Fund Family | iShares by BlackRock (US) | Vanguard (US) |
| Category | Equity | Equity |
| Style | Large Cap Blend | Large Cap Blend |
| Inception | Oct 23, 2000 | Sep 7, 2010 |
Volatility and max drawdown are measured over the window both funds cover: Sep 9, 2010 to Sep 17, 2026 (16 years).
OEF 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.
OEF vs VOO Performance
iShares S&P 100 ETF (OEF) 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 OEF returned +16.52% while VOO returned +17.03%. Year to date, OEF is up 11.66% versus a gain of 12.25% for VOO.
Over three years, OEF compounded at +23.30% per year against +21.25% for VOO; over five years the annualized figures are +14.62% and +13.08% respectively. Across the full 16-year window we track, OEF has the edge at +13.92% annualized vs +13.38%.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
OEF has been the more volatile fund, with annualized monthly volatility of 14.3% 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 -31.4% for OEF 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
OEF charges 0.20% per year while VOO charges 0.03%. On a $10,000 position that is $20 vs $3 annually, a gap of $17 per year that compounds over a long holding period. On income, OEF currently yields 0.85% against 1.04% for VOO.
Holdings Overlap
99.8% of OEF's money is in holdings VOO also owns. 72.2% of VOO's money is in holdings OEF also owns.
Most of OEF is already inside VOO. Owning both mostly buys the same companies twice.
101 positions in common, counted across the 102 positions we hold weights for in OEF and 494 in VOO, against full books of 106 and 509.
What only one of them owns
Measured across the 102 and 494 positions we hold weights for.
VOO holds 386 positions OEF does not, 26.9% of the fund.
Largest: PANW 0.42%, KLAC 0.37%, APH 0.31%, CRWD 0.30%, STX 0.30%
Top Shared Holdings
| Stock | Weight in OEF | Weight in VOO | Difference |
|---|---|---|---|
| NVDANvidia Corp | 11.13% | 7.55% | 3.58% |
| AAPLApple, Inc | 9.69% | 7.05% | 2.64% |
| MSFTMicrosoft Corp | 7.85% | 5.36% | 2.49% |
| AMZNAmazon.Com Inc | 5.29% | 4.13% | 1.16% |
| GOOGLAlphabet Inc,class A | 4.14% | 3.24% | 0.90% |
| AVGOBroadcom Inc | 3.65% | 2.86% | 0.79% |
| GOOGAlphabet Inc | 3.30% | 2.62% | 0.68% |
| METAMeta Platforms Inc | 2.62% | 1.90% | 0.72% |
| MUMicron Technology, Inc. | 2.25% | 1.44% | 0.81% |
| TSLATesla Inc | 2.16% | 1.36% | 0.80% |
99.8% of OEF is already inside VOO.
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, OEF or VOO?
OEF has an expense ratio of 0.20% while VOO charges 0.03%. VOO is the cheaper option, by $17 a year on a $10,000 investment.
Which performed better, OEF or VOO?
Over the past year OEF returned +16.52% vs +17.03% for VOO, so VOO leads on 1-year performance. Over the longest common window we track (16 years), OEF annualized +13.92% vs +13.38% for VOO. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, OEF or VOO?
OEF has been the more volatile fund at 14.3% annualized versus 14.1% for VOO. Worst drawdown: OEF -31.4% vs VOO -34.3%.
Should I hold both OEF and VOO?
OEF 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 OEF and VOO?
99.8% of OEF's money is in holdings VOO also owns. 72.2% of VOO's is in holdings OEF also owns. They hold 101 positions in common, counted across the 102 positions we hold weights for in OEF and 494 in VOO.
Which pays a higher dividend, OEF or VOO?
OEF yields 0.85% while VOO yields 1.04%, so VOO currently pays the higher dividend yield.
Is VOO better than OEF?
VOO has a lower expense ratio. OEF led over 3Y, 5Y and the full window, VOO over 1Y. The two have moved almost in lockstep, correlation 0.99. VOO is less concentrated, with 37.6% of the fund in its ten largest positions against 52.1%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.