IEO holdings and overlap
iShares U.S. Oil & Gas Exploration & Production ETF (IEO) holds 47 positions in its iShares file of 2026-10-27. Its three largest are ConocoPhillips (COP) at 18.02%, Marathon Petroleum (MPC) at 12.41% and Valero Energy (VLO) at 11.31%, and its ten largest make up 70.3% of the fund.
In its iShares file of 2026-10-27, IEO is 99.9% energy by sector, with none of it in mega-cap tech or in the ten largest US companies by market value.
What does IEO hold, as of its issuer file of 2026-10-27?
IEO spreads its weight across 47 positions, against a median of 40 across the 11 Energy funds with a page here. The position IEO carries furthest above that group is Marathon Petroleum at 12.41% of the fund, against a 3.27% median there.
| Rank | Company | Weight | Weight bar |
|---|---|---|---|
| 1 | COP ConocoPhillips | 18.02% | |
| 2 | MPC Marathon Petroleum | 12.41% | |
| 3 | VLO Valero Energy | 11.31% | |
| 4 | EOG EOG Resources | 4.72% | |
| 5 | DVN Devon Energy | 4.5% | |
| 6 | EQT EQT | 4.44% | |
| 7 | PSX Phillips 66 | 4.43% | |
| 8 | FANG Diamondback Energy | 4.35% | |
| 9 | EXE Expand Energy | 3.11% | |
| 10 | PR Permian Resources | 3.03% | |
| 11 | OVV DE Ovintiv | 2.78% | |
| 12 | TPL Texas Pacific Land | 2.75% | |
| 13 | APA APA | 2.53% | |
| 14 | DINO HF Sinclair | 2.51% | |
| 15 | RRC Range Resources | 1.87% | |
| 16 | AR Antero Resources | 1.84% | |
| 17 | SM SM Energy | 1.32% | |
| 18 | VNOM Viper Energy | 1.28% | |
| 19 | CHRD Chord Energy | 1.19% | |
| 20 | VG Venture Global | 1.04% | |
| 21 | PBF PBF Energy | 1.03% | |
| 22 | MTDR Matador Resources | 0.99% | |
| 23 | MGY Magnolia Oil & Gas | 0.89% | |
| 24 | MUR Murphy Oil | 0.83% | |
| 25 | CNX CNX Resources | 0.81% | |
| 26 | CRGY Crescent Energy | 0.64% | |
| 27 | CRC California Resources | 0.63% | |
| 28 | DK Delek US | 0.61% | |
| 29 | PARR Par Pacific | 0.53% | |
| 30 | CLMT Calumet | 0.5% | |
| 31 | NOG Northern Oil and Gas | 0.42% | |
| 32 | GPOR Gulfport Energy | 0.36% | |
| 33 | TALO Talos Energy | 0.32% | |
| 34 | WKC World Kinect | 0.26% | |
| 35 | CVI CVR Energy | 0.24% | |
| 36 | KOS Kosmos Energy | 0.23% | |
| 37 | CRK Comstock Resources | 0.17% | |
| 38 | REX REX American Resources | 0.15% | |
| 39 | DEC Diversified Energy | 0.15% | |
| 40 | GPRE Green Plains | 0.13% | |
| 41 | REPX Riley Exploration Permian | 0.13% | |
| 42 | BKV BKV | 0.11% | |
| 43 | EGY VAALCO Energy | 0.1% | |
| 44 | VTS Vitesse Energy | 0.09% | |
| 45 | SOC Sable Offshore | 0.07% | |
| 46 | SD SandRidge Energy | 0.06% | |
| 47 | CLNE Clean Energy Fuels | 0.04% |
The most recent file iShares has published for IEO is dated 2026-10-27, 1 day before these prices, which is the median for the iShares ETFs covered here. Every one of the 47 positions IEO holds, with its weight, is in the fund's JSON file. See the other 95 ETFs with a page here that hold COP, and how their weights compare with the 18.02% IEO gives it.
Category: Energy, set by TickerInside from the ETF's own latest file. In its file of 2026-10-27, 100% of its stocks whose sector is known are energy companies, each in the sector the site gives that company. How categories are set.
https://tickerinside.com/api/v1/fund/ieo.jsonhttps://tickerinside.com/api/v1/fund/ieo.csv=IMPORTDATA("https://tickerinside.com/api/v1/fund/ieo.csv")If your sheet uses a decimal comma: =IMPORTDATA("https://tickerinside.com/api/v1/fund/ieo.csv"; ","; "en_US")curl -s https://tickerinside.com/api/v1/fund/ieo.jsonHow much money went into or out of IEO?
On the close of Friday, October 23, 2026, IEO neither created nor redeemed shares. Over its last 5 closes, a net inflow of $7.5 million.
From IEO's own holdings files. Every ETF's latest flows.
How is IEO split by sector?
| Sector | Weight | Weight bar |
|---|---|---|
| Energy | 99.9% |
From its iShares file of 2026-10-27. How these are measured.
What did IEO hold in its SEC reports since 2019?
IEO's largest position in its SEC filings has been ConocoPhillips (COP) since 2019-09-30: 14.72% then and 17.26% in its report for 2026-06-30, across 28 quarterly reports.
| Report | Positions | Largest | Top 10 |
|---|---|---|---|
| 2019-09-30 | 52 | COP 14.72% | 68.0% |
| 2019-12-31 | 50 | COP 15.27% | 66.9% |
| 2020-12-31 | 38 | COP 14.53% | 67.8% |
| 2021-12-31 | 47 | COP 17.71% | 68.6% |
| 2022-12-31 | 46 | COP 18.61% | 67.7% |
| 2023-12-31 | 45 | COP 19.30% | 70.3% |
| 2024-12-31 | 46 | COP 20.26% | 70.2% |
| 2025-12-31 | 46 | COP 19.52% | 71.3% |
| 2026-06-30 | 46 | COP 17.26% | 71.3% |
The first report, then the last of each year, of the 28 reports IEO filed on SEC Form N-PORT from 2019-09-30 to 2026-06-30, each company under its ticker today. Every position of every report is in its quarterly file, and at any date at /api/v1/history/ieo/{date}.json. How these are read.
What does IEO duplicate?
The ETF nearest to IEO is XOP: the two hold 56.0% of their weight in common, in the 46 companies both own, and 100.0% of IEO itself is also held there. Owning IEO alongside the ETFs at the top of this table means about half of the weight is held twice. IEO is close to contained in XOP.
| ETF | Overlap by weight | Of IEO held there | Of that ETF in IEO | Companies in both | Overlap bar |
|---|---|---|---|---|---|
| XOP | 56.0% | 100.0% | 91.5% | 46 | |
| RSPG | 45.5% | 72.6% | 51.5% | 11 | |
| IYE | 34.6% | 88.1% | 34.7% | 19 | |
| FENY | 34.5% | 98.8% | 34.6% | 43 | |
| XLE | 33.9% | 72.6% | 33.9% | 11 | |
| VDE | 32.8% | 98.8% | 33.0% | 45 | |
| IGE | 23.6% | 98.8% | 23.6% | 37 | |
| IXC | 19.7% | 72.6% | 19.7% | 11 | |
| QVAL | 16.1% | 56.2% | 16.3% | 8 | |
| POWR | 12.2% | 12.2% | 12.8% | 6 | |
| XMVM | 10.8% | 15.0% | 16.3% | 9 | |
| PWV | 10.0% | 47.4% | 10.0% | 6 |
FENY's holdings are from its SEC Form N-PORT for the period ended 2026-07-31, filed 2026-09-23. VDE's holdings are from its SEC Form N-PORT for the period ended 2026-05-31, filed 2026-07-29. QVAL's holdings are from its SEC Form N-PORT for the period ended 2026-06-30, filed 2026-08-26. The other ETFs' holdings are from their issuers' latest files. Check IEO against any ETF in the ETF overlap calculator · how overlap is measured.
What adds something different to IEO?
RING shares 0% of weight with IEO and its weekly returns correlate with it at 0.00 over three years. The table lists the covered ETFs with the least in common with IEO, least shared weight first and, among equals, lowest correlation.
| ETF | Name | Overlap by weight | Correlation, 3y | Companies in both |
|---|---|---|---|---|
| RING | iShares MSCI Global Gold Miners ETF | 0.0% | 0.00 | 0 |
| SOXX | iShares Semiconductor ETF | 0.0% | 0.04 | 0 |
| PABU | iShares Paris-Aligned Climate Optimized MSCI USA ETF | 0.0% | 0.06 | 0 |
| SCZ | iShares MSCI EAFE Small-Cap ETF | 0.0% | 0.08 | 0 |
| XT | iShares Future Exponential Technologies ETF | 0.0% | 0.09 | 0 |
| PFF | iShares Preferred and Income Securities ETF | 0.0% | 0.14 | 0 |
| PICK | iShares MSCI Global Metals & Mining Producers ETF | 0.0% | 0.14 | 0 |
| REET | iShares Global REIT ETF | 0.0% | 0.19 | 0 |
Cost, returns and risk
| Expense ratio | 0.37% |
|---|---|
| Dividend yield | 1.66% |
| Total return, 1 year | 69.3% |
| Total return, 3 years cumulative | 62.7% |
| Total return, 5 years cumulative | 161.0% |
| Volatility, annualised | 26.8% |
| Worst fall, 3 years | -29.0% |
| Beta against SPY, 3 years of weekly returns | 0.28 |
| Weight in the ten largest positions | 70.3% |
| Largest single position | 18.0% |
| Assets under management | $0.7B |
Expense ratio, yield and assets are reference data (the expense ratio from IEO's SEC filing of 2026-07-27); the weight in the ten largest positions and the largest single position are from the issuer file of 2026-10-27; every other figure is computed here from weekly closes.
How it moves with the market
| Against | Correlation, 3 years | Covariance, annualised, in percent squared |
|---|---|---|
| SPY | 0.15barely linked | 55 |
| QQQ | 0.02barely linked | 9 |
Weekly total returns. What the bands mean · why the covariance is printed.
Year by year
| Year | Total return |
|---|---|
| 2026 | 68.2% |
| 2025 | 2.1% |
| 2024 | -1.4% |
| 2023 | 3.6% |
| 2022 | 57.8% |
One year
Where to go next
- IEZ, iShares U.S. Oil Equipment & Services ETF
- IXC, iShares Global Energy ETF
- IYE, iShares U.S. Energy ETF
- OIH, VanEck Oil Services ETF
- Run a portfolio x-ray to see what IEO carries once you look through it
- Compare IEO against any other ETF in the builder
Holdings from the most recent file iShares has published, dated 2026-10-27. Prices through 2026-10-28. How every figure here is produced. Measurements, not investment advice.
Cite this page
TickerInside, iShares U.S. Oil & Gas Exploration & Production ETF (IEO), holdings from the issuer's file of 2026-10-27, https://tickerinside.com/etf/ieo/, CC BY 4.0
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