目前共有 170 家機構持有 OMAB，以下依持股市值由高至低排序。
| 主要持有機構 | 總市值 | 平均佔比 |
|---|---|---|
| JONES FINANCIAL COMPANIES LLLP | US$3757.0 | 0.00% |
| NISA INVESTMENT ADVISORS, LLC | US$3327.0 | 0.00% |
| TD Waterhouse Canada Inc. | US$2299.0 | 0.00% |
| Silver Grove Financial Group, Inc. | US$1836.0 | 0.00% |
| Parkside Financial Bank & Trust | US$1721.0 | 0.00% |
| FINANCIAL CONSULATE, INC | US$1721.0 | 0.00% |
| Bell Investment Advisors, Inc | US$1607.0 | 0.00% |
| Versant Capital Management, Inc | US$1606.0 | 0.00% |
| TD PRIVATE CLIENT WEALTH LLC | US$1491.0 | 0.00% |
| Dogwood Wealth Management LLC | US$1262.0 | 0.00% |
| JPL Wealth Management, LLC | US$1033.0 | 0.00% |
| JFS WEALTH ADVISORS, LLC | US$1033.0 | 0.00% |
| Larson Financial Group LLC | US$918.0 | 0.00% |
| Advisory Services Network, LLC | US$803.0 | 0.00% |
| IMA Advisory Services, Inc. | US$688.0 | 0.00% |
| MAI Capital Management | US$574.0 | 0.00% |
| True Wealth Design, LLC | US$459.0 | 0.00% |
| Frazier Financial Advisors, LLC | US$345.0 | 0.00% |
| Cheviot Value Management, LLC | US$115.0 | 0.00% |
| Root Financial Partners, LLC | US$115.0 | 0.00% |