IYE vs IEO: Holdings Overlap
iShares · 38 holdings · $1.7B · as of 2026-04-30
IEOiShares U.S. Oil & Gas Exploration & Production ETF
iShares · 46 holdings · $559M · as of 2026-03-31
Holdings snapshots are 30 days apart (IYE: 2026-04-30, IEO: 2026-03-31). 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 IYE and IEO?
iShares U.S. Energy ETF (IYE, by iShares) holds 38 positions; iShares U.S. Oil & Gas Exploration & Production ETF (IEO, by iShares) holds 46. They have 20 holdings in common, and by portfolio weight the two funds are 33.2% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 33.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 20IYE holds 38 · IEO holds 46
- Weight in Shared Holdings
- IYE 33%·IEO 89%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 IYE
18 of 38 positions (66.8% of the fund) are not held by IEO.
Sector Breakdown
| Sector | IYE | IEO |
|---|---|---|
| Energy | 98.8% | 99.9% |
| Information Technology | 1.1% | 0.0% |
| 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 |
|---|---|---|---|---|---|---|---|
| IYE | +5.2% | +30.1% | +39.7% | +13.0% | +21.6% | +8.7% | 2.19% |
| IEO | +6.1% | +34.9% | +40.9% | +10.4% | +22.1% | +10.3% | 1.95% |
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 IYE vs IEO →
Shared Holdings(20)
The top 10 shared positions account for 83% of the overlap, led by COP, EOG and VLO.
 COPConocoPhillips COM | 6.51% | 19.46% | 6.51% |
|---|---|---|---|
 EOGEOG Resources Inc. COM | 3.55% | 9.44% | 3.55% |
 VLOValero Energy Corp. COM | 3.54% | 9.07% | 3.54% |
 MPCMarathon Petroleum Corp. COM | 3.43% | 4.43% | 3.43% |
 PSXPhillips 66 COM | 3.32% | 7.29% | 3.32% |
 FANGDiamondback Energy Inc COM | 1.80% | 4.81% | 1.80% |
 EQTEQT Corporation COM | 1.61% | 4.11% | 1.61% |
 DVNDevon Energy Corporation COM | 1.39% | 4.47% | 1.39% |
 CTRACoterra Energy Inc COM | 1.21% | 3.82% | 1.21% |
 TPLTexas Pacific Land Corporation COM | 1.14% | 3.72% | 1.14% |
 EXEExpand Energy Corp. COM | 1.03% | 3.75% | 1.03% |
 OVVOvintiv Inc COM | 0.79% | 2.36% | 0.79% |
 PRPermian Resources Corporation Class A | 0.66% | 2.26% | 0.66% |
 APAAPA Corp. COM | 0.64% | 2.16% | 0.64% |
 ARAntero Resources Corporation COM | 0.51% | 1.78% | 0.51% |
 DINOHF Sinclair Corporation | 0.47% | 1.40% | 0.47% |
 RRCRange Resources Corporation | 0.46% | 1.53% | 0.46% |
 VNOMViper Energy Inc. CL A | 0.41% | 1.25% | 0.41% |
 CHRDChord Energy Corp. COM NEW | 0.37% | 1.16% | 0.37% |
 MTDRMatador Resources Company COM | 0.33% | 1.06% | 0.33% |
Frequently Asked Questions
How much do IYE and IEO overlap?
IYE and IEO overlap by 33.2% of portfolio weight. They share 20 holdings (IYE holds 38 positions and IEO holds 46), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IYE and IEO?
The two portfolios are 33.2% 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 IYE and IEO?
The largest positions held by both funds are COP, EOG, VLO, MPC and PSX. Together the top 10 shared positions account for 83% of the total overlap.
What does IYE own that IEO doesn't?
18 positions (66.8% of IYE) are unique to IYE, led by XOM, CVX and WMB. In the other direction, 26 positions (10.6% of IEO) are unique to IEO.