OEF vs VTI: Holdings Overlap
iShares · 101 holdings · $20.4B · as of 2026-03-31
VTIVanguard Total Stock Market Index Fund
Vanguard · 3505 holdings · $696.4B · as of 2026-03-31
How similar are OEF and VTI?
iShares S&P 100 ETF (OEF, by iShares) holds 101 positions; Vanguard Total Stock Market Index Fund (VTI, by Vanguard) holds 3505. They have 101 holdings in common, and by portfolio weight the two funds are 63.5% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 63.5%Sum of the smaller weight of each shared holding
- Shared Holdings
- 101OEF holds 101 · VTI holds 3505
- Weight in Shared Holdings
- OEF 100%·VTI 63%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 VTI, so it brings nothing the other fund doesn’t already own.
Sector Breakdown
| Sector | OEF | VTI |
|---|---|---|
| Information Technology | 38.9% | 30.5% |
| Communication Services | 13.5% | 9.6% |
| Financials | 11.2% | 12.7% |
| Industrials | 5.9% | 10.4% |
| Consumer Discretionary | 10.2% | 9.8% |
| Other Sectors | 20.1% | 26.3% |
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% |
| VTI | +3.3% | +14.6% | +24.2% | +20.9% | +12.3% | +14.9% | 1.02% |
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 VTI →
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% | 6.42% | 6.42% |
|---|---|---|---|
 AAPLApple Inc. COM | 9.23% | 5.94% | 5.94% |
 MSFTMicrosoft Corp. COM | 6.81% | 4.38% | 4.38% |
 AMZNAmazon.com, Inc. COM | 5.04% | 3.21% | 3.21% |
 GOOGLAlphabet Inc. CAP STK CL A | 4.15% | 2.67% | 2.67% |
 AVGOBroadcom Inc COM | 3.63% | 2.34% | 2.34% |
 GOOGAlphabet Inc. CAP STK CL C | 3.32% | 2.11% | 2.11% |
 METAMeta Platforms, Inc., Class A | 3.10% | 2.00% | 2.00% |
 TSLATesla Inc COM | 2.59% | 1.67% | 1.67% |
 BRK-BBerkshire Hathaway, Inc., Class B | 2.18% | 1.37% | 1.37% |
 LLYEli Lilly & Co. COM | 1.81% | 1.25% | 1.25% |
 JPMJPMorgan Chase & Co. COM | 1.96% | 1.19% | 1.19% |
 XOMExxon Mobil Corp. COM | 1.76% | 1.13% | 1.13% |
 JNJJohnson & Johnson COM | 1.46% | 0.94% | 0.94% |
 WMTWalmart Inc COM | 1.35% | 0.87% | 0.87% |
 VVisa, Inc., Class A | 1.26% | 0.79% | 0.79% |
 COSTCostco Wholesale Corporation COM | 1.10% | 0.71% | 0.71% |
 NFLXNetflix, Inc. COM | 1.01% | 0.65% | 0.65% |
 MAMasterCard Incorporated CL A | 1.01% | 0.63% | 0.63% |
 CVXChevron Corp. COM | 0.96% | 0.63% | 0.63% |
 ABBVAbbVie Inc. COM | 0.95% | 0.61% | 0.61% |
 MUMicron Technology Inc. COM | 0.94% | 0.61% | 0.61% |
 PGThe Procter & Gamble Co. COM | 0.83% | 0.54% | 0.54% |
 AMDAdvanced Micro Devices Inc. COM | 0.82% | 0.53% | 0.53% |
 CATCaterpillar Inc COM | 0.82% | 0.53% | 0.53% |
Frequently Asked Questions
How much do OEF and VTI overlap?
OEF and VTI overlap by 63.5% of portfolio weight. They share 101 holdings (OEF holds 101 positions and VTI holds 3505), based on each fund's latest SEC-reported holdings.
Is it redundant to own both OEF and VTI?
The two portfolios are 63.5% 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 VTI?
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 VTI doesn't?
Nothing. Every position in OEF is also held by VTI. In the other direction, 3404 positions (36.2% of VTI) are unique to VTI.