IEO vs VDE: Holdings Overlap
IEOiShares U.S. Oil & Gas Exploration & Production ETF
iShares · 46 holdings · $559M · as of 2026-03-31
Vanguard · 105 holdings · $10.0B · as of 2026-05-31
Holdings snapshots are 61 days apart (IEO: 2026-03-31, VDE: 2026-05-31). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are IEO and VDE?
iShares U.S. Oil & Gas Exploration & Production ETF (IEO, by iShares) holds 46 positions; Vanguard Energy Index Fund (VDE, by Vanguard) holds 105. They have 44 holdings in common, and by portfolio weight the two funds are 32.8% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 32.8%Sum of the smaller weight of each shared holding
- Shared Holdings
- 44IEO holds 46 · VDE holds 105
- Weight in Shared Holdings
- IEO 95%·VDE 33%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 IEO
2 of 46 positions (4.9% of the fund) are not held by VDE.
Sector Breakdown
| Sector | IEO | VDE |
|---|---|---|
| Energy | 99.9% | 99.5% |
| Other Sectors | 0.0% | 0.0% |
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% |
| VDE | +5.2% | +30.6% | +40.8% | +13.4% | +22.8% | +9.4% | 2.48% |
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 VDE →
Shared Holdings(44)
The top 10 shared positions account for 76% of the overlap, led by COP, MPC and VLO.
 COPConocoPhillips COM | 19.46% | 5.76% | 5.76% |
|---|---|---|---|
 MPCMarathon Petroleum Corp. COM | 4.43% | 3.27% | 3.27% |
 VLOValero Energy Corp. COM | 9.07% | 3.17% | 3.17% |
 EOGEOG Resources Inc. COM | 9.44% | 3.05% | 3.05% |
 PSXPhillips 66 COM | 7.29% | 2.97% | 2.97% |
 DVNDevon Energy Corporation COM | 4.47% | 2.11% | 2.11% |
 FANGDiamondback Energy Inc COM | 4.81% | 1.51% | 1.51% |
 EQTEQT Corporation COM | 4.11% | 1.45% | 1.45% |
 EXEExpand Energy Corp. COM | 3.75% | 0.94% | 0.94% |
 TPLTexas Pacific Land Corporation COM | 3.72% | 0.85% | 0.85% |
 OVVOvintiv Inc COM | 2.36% | 0.70% | 0.70% |
 PRPermian Resources Corporation Class A | 2.26% | 0.60% | 0.60% |
 APAAPA Corp. COM | 2.16% | 0.58% | 0.58% |
 DINOHF Sinclair Corporation | 1.40% | 0.50% | 0.50% |
 ARAntero Resources Corporation COM | 1.78% | 0.47% | 0.47% |
 RRCRange Resources Corporation | 1.53% | 0.42% | 0.42% |
 VNOMViper Energy Inc. CL A | 1.25% | 0.40% | 0.40% |
 CHRDChord Energy Corp. COM NEW | 1.16% | 0.36% | 0.36% |
 SMSM Energy Co. COM | 1.01% | 0.33% | 0.33% |
 MTDRMatador Resources Company COM | 1.06% | 0.30% | 0.30% |
 MURMurphy Oil Corporation COM | 0.79% | 0.24% | 0.24% |
 MGYMagnolia Oil & Gas Corporation CL A | 0.82% | 0.23% | 0.23% |
 CNXCNX Resources Corporation COM | 0.79% | 0.23% | 0.23% |
 CRCCalifornia Resources Corporation COM STOCK | 0.78% | 0.21% | 0.21% |
 PARRPar Pacific Holdings, Inc. COM NEW | 0.45% | 0.19% | 0.19% |
Frequently Asked Questions
How much do IEO and VDE overlap?
IEO and VDE overlap by 32.8% of portfolio weight. They share 44 holdings (IEO holds 46 positions and VDE holds 105), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IEO and VDE?
The two portfolios are 32.8% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of IEO and VDE?
The largest positions held by both funds are COP, MPC, VLO, EOG and PSX. Together the top 10 shared positions account for 76% of the total overlap.
What does IEO own that VDE doesn't?
2 positions (4.9% of IEO) are unique to IEO, led by CTRA and VG. In the other direction, 61 positions (66.7% of VDE) are unique to VDE.