OEF vs IVV: Holdings Overlap
iShares · 101 holdings · $20.4B · as of 2026-03-31
iShares · 503 holdings · $901.0B · as of 2026-03-31
How similar are OEF and IVV?
iShares S&P 100 ETF (OEF, by iShares) holds 101 positions; iShares Core S&P 500 ETF (IVV, by iShares) holds 503. They have 101 holdings in common, and by portfolio weight the two funds are 71.9% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 71.9%Sum of the smaller weight of each shared holding
- Shared Holdings
- 101OEF holds 101 · IVV holds 503
- Weight in Shared Holdings
- OEF 100%·IVV 72%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in OEF
Every position in OEF is also held by IVV, so it brings nothing the other fund doesn’t already own.
Sector Breakdown
| Sector | OEF | IVV |
|---|---|---|
| Information Technology | 38.9% | 32.6% |
| Communication Services | 13.5% | 10.5% |
| Financials | 11.2% | 12.6% |
| Consumer Discretionary | 10.2% | 9.8% |
| Health Care | 9.3% | 9.4% |
| Other Sectors | 16.7% | 24.8% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| OEF | +4.0% | +12.2% | +23.1% | +23.3% | +14.9% | +16.5% | 0.84% |
| IVV | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.05% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in OEF vs IVV →
Shared Holdings(101)
The top 10 shared positions account for 51% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 10.50% | 7.56% | 7.56% |
|---|---|---|---|
 AAPLApple Inc. COM | 9.23% | 6.65% | 6.65% |
 MSFTMicrosoft Corp. COM | 6.81% | 4.91% | 4.91% |
 AMZNAmazon.com, Inc. COM | 5.04% | 3.63% | 3.63% |
 GOOGLAlphabet Inc. CAP STK CL A | 4.15% | 2.99% | 2.99% |
 AVGOBroadcom Inc COM | 3.63% | 2.62% | 2.62% |
 GOOGAlphabet Inc. CAP STK CL C | 3.32% | 2.39% | 2.39% |
 METAMeta Platforms, Inc., Class A | 3.10% | 2.23% | 2.23% |
 TSLATesla Inc COM | 2.59% | 1.87% | 1.87% |
 BRK-BBerkshire Hathaway, Inc., Class B | 2.18% | 1.57% | 1.57% |
 JPMJPMorgan Chase & Co. COM | 1.96% | 1.42% | 1.42% |
 LLYEli Lilly & Co. COM | 1.81% | 1.30% | 1.30% |
 XOMExxon Mobil Corp. COM | 1.76% | 1.27% | 1.27% |
 JNJJohnson & Johnson COM | 1.46% | 1.05% | 1.05% |
 WMTWalmart Inc COM | 1.35% | 0.97% | 0.97% |
 VVisa, Inc., Class A | 1.26% | 0.91% | 0.91% |
 COSTCostco Wholesale Corporation COM | 1.10% | 0.79% | 0.79% |
 MAMasterCard Incorporated CL A | 1.01% | 0.73% | 0.73% |
 NFLXNetflix, Inc. COM | 1.01% | 0.72% | 0.72% |
 CVXChevron Corp. COM | 0.96% | 0.69% | 0.69% |
 ABBVAbbVie Inc. COM | 0.95% | 0.69% | 0.69% |
 MUMicron Technology Inc. COM | 0.94% | 0.68% | 0.68% |
 PGThe Procter & Gamble Co. COM | 0.83% | 0.60% | 0.60% |
 PLTRPalantir Technologies, Inc., Class A | 0.83% | 0.60% | 0.60% |
 AMDAdvanced Micro Devices Inc. COM | 0.82% | 0.59% | 0.59% |
Frequently Asked Questions
How much do OEF and IVV overlap?
OEF and IVV overlap by 71.9% of portfolio weight. They share 101 holdings (OEF holds 101 positions and IVV holds 503), based on each fund's latest SEC-reported holdings.
Is it redundant to own both OEF and IVV?
The two portfolios are 71.9% identical by weight. Owning both mostly doubles down on the shared core rather than diversifying: the same large positions drive both funds.
What are the biggest shared holdings of OEF and IVV?
The largest positions held by both funds are NVDA, AAPL, MSFT, AMZN and GOOGL. Together the top 10 shared positions account for 51% of the total overlap.
What does OEF own that IVV doesn't?
Nothing. Every position in OEF is also held by IVV. In the other direction, 402 positions (27.8% of IVV) are unique to IVV.