IEO vs VTI: Holdings Overlap
IEOiShares U.S. Oil & Gas Exploration & Production ETF
iShares · 46 holdings · $559M · as of 2026-03-31
VTIVanguard Total Stock Market Index Fund
Vanguard · 3505 holdings · $696.4B · as of 2026-03-31
How similar are IEO and VTI?
iShares U.S. Oil & Gas Exploration & Production ETF (IEO, by iShares) holds 46 positions; Vanguard Total Stock Market Index Fund (VTI, by Vanguard) holds 3505. They have 45 holdings in common, and by portfolio weight the two funds are 1.3% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 1.3%Sum of the smaller weight of each shared holding
- Shared Holdings
- 45IEO holds 46 · VTI holds 3505
- Weight in Shared Holdings
- IEO 100%·VTI 1%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
Sector Breakdown
| Sector | IEO | VTI |
|---|---|---|
| Energy | 99.9% | 4.2% |
| Information Technology | 0.0% | 30.5% |
| Financials | 0.0% | 12.7% |
| Industrials | 0.0% | 10.4% |
| Health Care | 0.0% | 10.0% |
| Other Sectors | 0.0% | 31.5% |
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 |
|---|---|---|---|---|---|---|---|
| IEO | +6.1% | +34.9% | +40.9% | +10.4% | +22.1% | +10.3% | 1.95% |
| 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 IEO vs VTI →
Shared Holdings(45)
The top 10 shared positions account for 76% of the overlap, led by COP, EOG and VLO.
 COPConocoPhillips COM | 19.46% | 0.26% | 0.26% |
|---|---|---|---|
 EOGEOG Resources Inc. COM | 9.44% | 0.12% | 0.12% |
 VLOValero Energy Corp. COM | 9.07% | 0.12% | 0.12% |
 PSXPhillips 66 COM | 7.29% | 0.12% | 0.12% |
 MPCMarathon Petroleum Corp. COM | 4.43% | 0.11% | 0.11% |
 EQTEQT Corporation COM | 4.11% | 0.06% | 0.06% |
 FANGDiamondback Energy Inc COM | 4.81% | 0.06% | 0.06% |
 DVNDevon Energy Corporation COM | 4.47% | 0.05% | 0.05% |
 TPLTexas Pacific Land Corporation COM | 3.72% | 0.04% | 0.04% |
 EXEExpand Energy Corp. COM | 3.75% | 0.04% | 0.04% |
 CTRACoterra Energy Inc COM | 3.82% | 0.04% | 0.04% |
 OVVOvintiv Inc COM | 2.36% | 0.03% | 0.03% |
 PRPermian Resources Corporation Class A | 2.26% | 0.03% | 0.03% |
 APAAPA Corp. COM | 2.16% | 0.02% | 0.02% |
 ARAntero Resources Corporation COM | 1.78% | 0.02% | 0.02% |
 RRCRange Resources Corporation | 1.53% | 0.02% | 0.02% |
 DINOHF Sinclair Corporation | 1.40% | 0.02% | 0.02% |
 VNOMViper Energy Inc. CL A | 1.25% | 0.01% | 0.01% |
 CHRDChord Energy Corp. COM NEW | 1.16% | 0.01% | 0.01% |
 SMSM Energy Co. COM | 1.01% | 0.01% | 0.01% |
 MTDRMatador Resources Company COM | 1.06% | 0.01% | 0.01% |
 CRCCalifornia Resources Corporation COM STOCK | 0.78% | 0.01% | 0.01% |
 MURMurphy Oil Corporation COM | 0.79% | 0.01% | 0.01% |
 MGYMagnolia Oil & Gas Corporation CL A | 0.82% | 0.01% | 0.01% |
 CNXCNX Resources Corporation COM | 0.79% | 0.01% | 0.01% |
Frequently Asked Questions
How much do IEO and VTI overlap?
IEO and VTI overlap by 1.3% of portfolio weight. They share 45 holdings (IEO holds 46 positions and VTI holds 3505), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IEO and VTI?
The two portfolios are 1.3% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IEO and VTI?
The largest positions held by both funds are COP, EOG, VLO, PSX and MPC. Together the top 10 shared positions account for 76% of the total overlap.
What does IEO own that VTI doesn't?
1 positions (0.2% of IEO) are unique to IEO, led by KOS. In the other direction, 3460 positions (98.3% of VTI) are unique to VTI.