IEO · iShares U.S. Oil & Gas Exploration & Production ETF · Holdings ETF
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 36 13F filers · Δ vs Jun 30, 2026Who Holds IEO
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 163 filers, like-for-like change -14.7%; actively managed books -16.4%; index-like books -3.2%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 38.4% | 94 | -2.4% |
| Exempt adviser | 0.5% | 2 | -24.5% |
| Adviser | 2.2% | 1 | -11.6% |
| Bank | 17.2% | 15 | -6.3% |
| Broker-dealer | 4.5% | 1 | -30.2% |
| Holding company | 16.0% | 7 | -3.5% |
| Non-US | 0.0% | 0 | -100.0% |
| Insurer | 0.0% | 0 | — |
| Unknown | 21.3% | 43 | -9.5% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 15.4% | 6 | -3.2% |
| Systematic-like | 9.7% | 7 | +424.8% |
| Concentrated | 12.8% | 32 | -8.2% |
| Diversified active | 62.1% | 118 | -27.4% |
| Unknown | 0.0% | 0 | -100.0% |
| Not measured | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 74.9% | 121 | -14.9% |
| Medium turnover | 7.4% | 19 | -57.2% |
| High turnover | 13.2% | 12 | +88.5% |
| Unknown | 4.5% | 11 | -9.5% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 1.4% | 11 | -31.0% |
| Medium horizon | 4.6% | 23 | -15.0% |
| Long horizon | 86.8% | 125 | -19.4% |
| Unknown | 7.2% | 4 | +209.3% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 12.3% | 49 | -12.4% |
| $1B to $10B | 17.8% | 49 | +0.2% |
| $10B to $100B | 15.5% | 35 | -26.0% |
| $100B or more | 54.4% | 30 | -15.7% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 28.2% | 84 | -22.1% |
| Pooled investment vehicles | 8.3% | 3 | +564.9% |
| Charitable organizations | 0.0% | 1 | -36.0% |
| Corporations | 1.2% | 2 | -0.9% |
| Other investment advisers | 0.0% | 1 | 0.0% |
| Diversified | 0.7% | 3 | -1.8% |
| Pension and profit sharing plans | 0.0% | 0 | — |
| Unknown | 61.6% | 69 | -21.0% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 10.2% | 10 | +207.5% |
| Private equity funds | 1.0% | 5 | -34.2% |
| Venture capital funds | 1.3% | 2 | 0.0% |
| Real estate funds | 0.5% | 4 | -13.6% |
| Securitized asset funds | 0.0% | 1 | 0.0% |
| Other private funds | 5.6% | 5 | -8.3% |
| Mixed private funds | 0.0% | 1 | 0.0% |
| Private funds, type not stated | 1.1% | 3 | -23.7% |
| No private funds | 19.1% | 65 | -25.5% |
| Unknown | 61.1% | 67 | -21.0% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 87.4% | 153 | -12.1% |
| Outside the US | 12.6% | 10 | -29.2% |
The Sep 30, 2026 filing window is still open, so its bar shows only the filers that have filed so far.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 4 holders with no observed 2026-03-31 13F and 2 holders with no observed 2026-06-30 13F.
Conviction and Crowding
163 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Quarterly Activity
New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.
Top Buyers
vs Jun 30, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Small Investors Research Corp | +3,272 | 43,319 | |
| Large TD Waterhouse Canada Inc. | +279 | 4,588 | |
| Mid INDEPENDENT FINANCIAL GROUP, LLC | +227 | 5,227 | |
| Mid PRIVATE TRUST CO NA | +114 | 164 | |
| Small Roxbury Financial LLC | +1 | 103 |
Top Sellers
vs Jun 30, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Small Mezzasalma Advisors, LLC | −544 | 6,360 | |
| Mid Avior Wealth Management, LLC | −330 | 1,651 | |
| Small Ignite Planners, LLC | −200 | 2,025 | |
| Small CYPRESS ASSET MANAGEMENT INC/TX | −157 | 2,796 | |
| Small COTTONWOOD CAPITAL ADVISORS, LLC | −126 | 20,439 |
Top New Positions
vs Jun 30, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Small Wagner Wealth Management, Corp | 13,105 | $1,729,860 | |
| Large DAVENPORT & Co LLC | 6,123 | $0 | |
| Micro IFC & Insurance Marketing, Inc. | 1,816 | $0 | |
| Small MinichMacGregor Wealth Management, LLC | 96,535 | $0 | |
| Mid Atria Investments, Inc | 5,158 | $0 |
Top Sold-Out Positions
vs Jun 30, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mid Sowell Financial Services LLC | 1,995 | $0 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mid Bank Pictet & Cie (Europe) AG IEO | $16,122,348 | 76.62% | 122,139 | Shares | 2026-10-20 | |
| Small COTTONWOOD CAPITAL ADVISORS, LLC Registered adviser IEO | $2,697,948 | 12.82% | 20,439 | Shares | 2026-10-20 | |
| Small Wagner Wealth Management, Corp IEO | $1,729,860 | 8.22% | 13,105 | Shares | 2026-10-20 | |
| Small Poehling Capital Management, INC. Registered adviser IEO | $462,000 | 2.20% | 3,500 | Shares | 2026-10-20 | |
| Mid PRIVATE TRUST CO NA IEO | $21,648 | 0.10% | 164 | Shares | 2026-10-20 | |
| Small Physician Wealth Advisors, Inc. Registered adviser IEO | $9,372 | 0.04% | 71 | Shares | 2026-10-20 | |
| Mid IFP Advisors, Inc Registered adviser IEO | — | — | 80 | Shares | 2026-10-16 | |
| Small ANCHYRA PARTNERS LLC Registered adviser IEO | — | — | 1,825 | Shares | 2026-10-13 | |
| Mid Avior Wealth Management, LLC Registered adviser IEO | — | — | 1,651 | Shares | 2026-10-13 | |
| Small Roxbury Financial LLC Registered adviser IEO | — | — | 103 | Shares | 2026-10-01 | |
| Mid INDEPENDENT FINANCIAL GROUP, LLC Registered adviser IEO | — | — | 5,227 | Shares | 2026-10-13 | |
| Mid GUYASUTA INVESTMENT ADVISORS INC Registered adviser IEO | — | — | 4,893 | Shares | 2026-10-15 | |
| Small Ignite Planners, LLC Registered adviser IEO | — | — | 2,025 | Shares | 2026-10-14 | |
| Small Mezzasalma Advisors, LLC Registered adviser IEO | — | — | 6,360 | Shares | 2026-10-14 | |
| Small GILL CAPITAL PARTNERS, LLC IEO | — | — | 2,192 | Shares | 2026-10-13 | |
| Small Cadent Capital Advisors, LLC Registered adviser IEO | — | — | 2,964 | Shares | 2026-10-09 | |
| Small Stegent Equity Advisors, Inc. Registered adviser IEO | — | — | 7,942 | Shares | 2026-10-13 | |
| Mid Turtle Creek Wealth Advisors, LLC Registered adviser IEO | — | — | 135 | Shares | 2026-10-15 | |
| Micro IFC & Insurance Marketing, Inc. IEO | — | — | 1,816 | Shares | 2026-10-16 | |
| Mid HARBOR INVESTMENT ADVISORY, LLC Registered adviser IEO | — | — | 800 | Shares | 2026-10-13 | |
| Small Hilltop National Bank IEO | — | — | 315 | Shares | 2026-10-14 | |
| Small Investors Research Corp Registered adviser IEO | — | — | 43,319 | Shares | 2026-10-07 | |
| Large DAVENPORT & Co LLC Registered adviser IEO | — | — | 6,123 | Shares | 2026-10-14 | |
| Mid CX Institutional Registered adviser IEO | — | — | 839 | Shares | 2026-10-02 | |
| Mid Atria Investments, Inc Registered adviser IEO | — | — | 5,158 | Shares | 2026-10-15 | |
| Small Enclave Advisors LLC Registered adviser IEO | — | — | 10,190 | Shares | 2026-10-14 | |
| Large Farther Finance Advisors, LLC Registered adviser IEO | — | — | 39 | Shares | 2026-10-08 | |
| Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC IEO | — | — | 1,473 | Shares | 2026-10-13 | |
| Large TD Waterhouse Canada Inc. IEO | — | — | 4,588 | Shares | 2026-10-16 | |
| Micro THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. IEO | — | — | 100 | Shares | 2026-10-14 | |
| Small MinichMacGregor Wealth Management, LLC Registered adviser IEO | — | — | 96,535 | Shares | 2026-10-14 | |
| Small Cedar Mountain Advisors, LLC Registered adviser IEO | — | — | 42 | Shares | 2026-10-15 | |
| Mid GAMMA Investing LLC Registered adviser IEO | — | — | 69 | Shares | 2026-10-08 | |
| Mid First Heartland Consultants, Inc. Registered adviser IEO | — | — | 1,665 | Shares | 2026-10-08 | |
| Small CYPRESS ASSET MANAGEMENT INC/TX IEO | — | — | 2,796 | Shares | 2026-10-09 | |
| Small BROWN, LISLE/CUMMINGS, INC. Registered adviser IEO | — | — | 187 | Shares | 2026-10-16 |