OEFequity
iShares S&P 100 ETF
105holdings
0.20%annual fee
USmarket
Valuation99 companies covered
27.9×P / E98% by weight
6.80×P / B84% by weight
3.6%Earnings yield
ETF comparisons / OEF vs SPY
equity comparison · Holdings dated 2026-09-11
OEF vs SPY
iShares S&P 100 ETF compared with State Street SPDR S&P 500 ETF Trust
The funds share a substantial core but differ outside it.OEF has 4 companies outside the overlap; SPY has 402.
Do OEF and SPY overlap?
OEF and SPY overlap by 72.2% by weight, across 99 shared companies.
SPYUS equity
State Street SPDR S&P 500 ETF Trust
504holdings
0.09%annual fee
USmarket
Valuation492 companies covered
27.5×P / E97% by weight
5.44×P / B85% by weight
3.6%Earnings yield
Price development
Both lines rebased to 0% over their shared dates
Largest shared positions
99 companies held in both funds
OEF weight
SPY weight
| Shared company | OEF | SPY |
|---|---|---|
| NVIDIA CORP NVDA | 11.00% | 8.01% |
| Apple Inc AAPL | 10.15% | 7.40% |
| Microsoft Corp MSFT | 7.66% | 5.58% |
| ALPHABET INC GOOGL 2 share classes | 7.43% | 5.41% |
| ↳ ALPHABET INC-CL A GOOGL | 4.13% | 3.01% |
| ↳ ALPHABET INC-CL C GOOG | 3.30% | 2.40% |
| AMAZON.COM INC AMZN | 5.23% | 3.81% |
| BROADCOM INC AVGO | 3.57% | 2.60% |
| META PLATFORMS INC-CLASS A META | 2.96% | 2.16% |
| Micron Technology Inc MU | 2.29% | 1.67% |
| TESLA INC TSLA | 2.14% | 1.56% |
| JPMorgan Chase & Co JPM | 1.99% | 1.45% |
| BERKSHIRE HATHAWAY INC. BRK/B | 1.95% | 1.42% |
| ELI LILLY & CO LLY | 1.84% | 1.34% |
| ADVANCED MICRO DEVICES AMD | 1.75% | 1.28% |
| ExxonMobil Holdings Corporation 2670549D | 1.43% | 1.04% |
| JOHNSON & JOHNSON JNJ | 1.33% | 0.97% |
| Visa Inc V | 1.28% | 0.93% |
| Intel Corp INTC | 1.06% | 0.77% |
| WALMART INC. WMT | 0.98% | 0.71% |
| Mastercard Inc MA | 0.96% | 0.70% |
| AbbVie Inc ABBV | 0.94% | 0.69% |
| CISCO SYSTEMS, INC. CSCO | 0.92% | 0.67% |
| Bank of America Corp BAC | 0.85% | 0.62% |
| Costco Wholesale Corp COST | 0.83% | 0.61% |
| Chevron Corp CVX | 0.83% | 0.61% |
| PALANTIR TECHNOLOGIES INC-A PLTR | 0.80% | 0.58% |
OEF and SPY questions
Based on the holdings compared above
How much do OEF and SPY overlap?
OEF and SPY overlap by 72.2% by weight, across 99 shared companies.
Which companies do OEF and SPY both hold?
The largest companies held in both funds are NVIDIA CORP, Apple Inc, Microsoft Corp, ALPHABET INC, AMAZON.COM INC.
Can I hold both OEF and SPY?
Holding both means 72.2% of that part of your portfolio is the same companies counted twice. That can suit you or not depending on your goals; this tool reports the overlap rather than giving advice.
Is OEF or SPY cheaper?
OEF has a 0.20% expense ratio and SPY has 0.09%.
How do OEF and SPY compare on valuation?
OEF has a weighted P/E of 27.9 and SPY has a weighted P/E of 27.5.
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