OEF vs SPY
OEF vs SPY
iShares S&P 100 ETF vs State Street SPDR S&P 500 ETF Trust
Quick Verdict
SPY has a lower expense ratio. SPY delivered stronger 1-year returns. SPY offers more diversification with 503 holdings.
Side-by-Side Comparison
| Metric | OEF | SPY | Winner |
|---|---|---|---|
| Expense Ratio | 0.20% | 0.09% | |
| AUM | $19.7B | $789.1B | |
| Dividend Yield | 0.88% | 1.01% | |
| Holdings | 106 | 505 | |
| YTD Return | +11.76% | +13.28% | |
| 1Y Return | +23.55% | +23.94% | |
| 3Y Return (annualized) | +23.13% | +21.07% | |
| 5Y Return (annualized) | +14.74% | +13.27% | |
| Volatility (annualized) | 15.3% | 15.3% | |
| Max Drawdown | -57.3% | -56.5% | |
| Fund Family | iShares by BlackRock (US) | State Street Investment Management | |
| Category | Equity | Equity | |
| Inception | Oct 23, 2000 | Jan 22, 1993 |
OEF vs SPY Performance
iShares S&P 100 ETF (OEF) is a ETF from iShares by BlackRock (US) and State Street SPDR S&P 500 ETF Trust (SPY) is a ETF from State Street Investment Management. Over the past year OEF returned +23.55% while SPY returned +23.94%. Year to date, OEF is up 11.76% versus a gain of 13.28% for SPY.
Over three years, OEF compounded at +23.13% per year against +21.07% for SPY; over five years the annualized figures are +14.74% and +13.27% respectively. Across the full 26-year window we track, SPY has the edge at +8.84% annualized vs +6.92%. Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
OEF has been the more volatile fund, with annualized monthly volatility of 15.3% compared with 15.3% for SPY. 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 -57.3% for OEF and -56.5% for SPY. Drawdown depth is worth weighing if you expect to sell during market stress rather than ride it out.
The two funds' monthly returns correlate at 0.98. 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 SPY charges 0.09%. On a $10,000 position that is $20 vs $9 annually, a gap of $11 per year that compounds over a long holding period. On income, OEF currently yields 0.88% against 1.01% for SPY.
Holdings Overlap
OEF and SPY share 99 holdings out of 507 unique holdings combined, representing a 70.3% weight overlap.
High overlap means holding both may not provide much additional diversification.
Top Shared Holdings
| Stock | Weight in OEF | Weight in SPY | Difference |
|---|---|---|---|
| NVDA | 10.14% | 7.31% | 2.83% |
| AAPL | 9.83% | 7.09% | 2.74% |
| MSFT | 6.15% | 4.43% | 1.72% |
| AMZN | Pro | Pro | Pro |
| GOOGL | Pro | Pro | Pro |
| AVGO | Pro | Pro | Pro |
| GOOG | Pro | Pro | Pro |
| META | Pro | Pro | Pro |
| TSLA | Pro | Pro | Pro |
| MU | Pro | Pro | Pro |
See all 10 holdings OEF shares with SPY Exact weights in each fund and the difference, for every overlapping position. Get FundXLS Pro: $29/moFirst 500 subscribers, then $49/mo. Cancel anytime. | |||
Frequently Asked Questions
Which is cheaper, OEF or SPY?
OEF has an expense ratio of 0.20% while SPY charges 0.09%. SPY is the cheaper option. On a $10,000 investment, that is $11 per year of difference.
Which performed better, OEF or SPY?
Over the past year OEF returned +23.55% vs +23.94% for SPY, so SPY leads on 1-year performance. Over the longest common window we track (26 years), OEF annualized +6.92% vs +8.84% for SPY. Past performance does not guarantee future results.
Which is riskier, OEF or SPY?
OEF has been the more volatile fund at 15.3% annualized versus 15.3% for SPY. Worst drawdown: OEF -57.3% vs SPY -56.5%.
Should I hold both OEF and SPY?
OEF and SPY have a monthly-return correlation of 0.98, so they move almost identically. Holding both adds little diversification - most investors pick one, usually on fees or the specific index tracked.
What is the holdings overlap between OEF and SPY?
OEF and SPY share 99 common holdings with a 70.3% weight overlap. Combined, they hold 507 unique securities.
Which pays a higher dividend, OEF or SPY?
OEF yields 0.88% while SPY yields 1.01%, so SPY currently pays the higher dividend yield.
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