現在 17 社の機関がIROCを保有しており、以下は保有時価総額の高い順です。
| 主要保有機関 | 申告総額 | 平均比率 |
|---|---|---|
| Invesco Ltd. | $9221.8万 | 0.01% |
| ABLE Financial Group, LLC | $270.2万 | 0.53% |
| Arax Advisory Partners | $221.5万 | 0.06% |
| Gladstone Institutional Advisory LLC | $194.4万 | 0.07% |
| Capital Analysts, LLC | $151.4万 | 0.04% |
| JANE STREET GROUP, LLC | $131.4万 | 0.00% |
| Cetera Investment Advisers | $94.6万 | 0.00% |
| OSAIC HOLDINGS, INC. | $75.2万 | 0.00% |
| LPL Financial LLC | $74.4万 | 0.00% |
| Sanctuary Advisors, LLC | $51.1万 | 0.00% |
| NAPLES GLOBAL ADVISORS, LLC | $31.1万 | 0.02% |
| CoreCap Advisors, LLC | $26.9万 | 0.01% |
| Private Advisor Group, LLC | $26.0万 | 0.00% |
| World Investment Advisors | $23.9万 | 0.00% |
| FIFTH THIRD BANCORP | $8060.0 | 0.00% |
| Sunrise Financial Services, LLC | $5037.0 | 0.00% |
| AE Wealth Management LLC | $1511.0 | 0.00% |