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 VOO
equity comparison · OEF 2026-09-11 · VOO 2026-06-30
OEF vs VOO
iShares S&P 100 ETF compared with VANGUARD 500 INDEX FUND
The funds share a substantial core but differ outside it.OEF has 5 companies outside the overlap; VOO has 407.
Do OEF and VOO overlap?
OEF and VOO overlap by 69.8% by weight, across 98 shared companies.
VOOUS equity
VANGUARD 500 INDEX FUND
520holdings
0.03%annual fee
USmarket
Valuation494 companies covered
26.8×P / E97% by weight
5.46×P / B85% by weight
3.7%Earnings yield
Price development
Both lines rebased to 0% over their shared dates
Largest shared positions
98 companies held in both funds
OEF weight
VOO weight
| Shared company | OEF | VOO |
|---|---|---|
| NVIDIA CORP NVDA | 11.00% | 7.51% |
| Apple Inc AAPL | 10.15% | 6.58% |
| ALPHABET INC GOOGL 2 share classes | 7.43% | 5.83% |
| ↳ ALPHABET INC-CL A GOOGL | 4.13% | 3.25% |
| ↳ ALPHABET INC-CL C GOOG | 3.30% | 2.59% |
| Microsoft Corp MSFT | 7.66% | 4.29% |
| AMAZON.COM INC AMZN | 5.23% | 3.61% |
| BROADCOM INC AVGO | 3.57% | 2.77% |
| Micron Technology Inc MU | 2.29% | 2.02% |
| META PLATFORMS INC-CLASS A META | 2.96% | 1.92% |
| TESLA INC TSLA | 2.14% | 1.83% |
| ELI LILLY & CO LLY | 1.84% | 1.47% |
| ADVANCED MICRO DEVICES AMD | 1.75% | 1.47% |
| BERKSHIRE HATHAWAY INC. BRK/B | 1.95% | 1.42% |
| JPMorgan Chase & Co JPM | 1.99% | 1.25% |
| Intel Corp INTC | 1.06% | 1.02% |
| JOHNSON & JOHNSON JNJ | 1.33% | 0.95% |
| Visa Inc V | 1.28% | 0.86% |
| LAM RESEARCH LRCX | 0.78% | 0.84% |
| WALMART INC. WMT | 0.98% | 0.77% |
| Caterpillar Inc CAT | 0.78% | 0.76% |
| Applied Materials Inc AMAT | 0.75% | 0.89% |
| CISCO SYSTEMS, INC. CSCO | 0.92% | 0.72% |
| AbbVie Inc ABBV | 0.94% | 0.69% |
| Costco Wholesale Corp COST | 0.83% | 0.64% |
| Mastercard Inc MA | 0.96% | 0.64% |
| UnitedHealth Group Inc UNH | 0.72% | 0.58% |
OEF and VOO questions
Based on the holdings compared above
How much do OEF and VOO overlap?
OEF and VOO overlap by 69.8% by weight, across 98 shared companies.
Which companies do OEF and VOO both hold?
The largest companies held in both funds are NVIDIA CORP, Apple Inc, ALPHABET INC, Microsoft Corp, AMAZON.COM INC.
Can I hold both OEF and VOO?
Holding both means 69.8% 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 VOO cheaper?
OEF has a 0.20% expense ratio and VOO has 0.03%.
How do OEF and VOO compare on valuation?
OEF has a weighted P/E of 27.9 and VOO has a weighted P/E of 26.8.
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