目前共有 17 家機構持有 IDX，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 |
|---|---|---|
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | US$159.9萬 | 0.00% |
| STIFEL FINANCIAL CORP | US$152.8萬 | 0.00% |
| OLD MISSION CAPITAL LLC | US$129.3萬 | 0.02% |
| Focus Partners Wealth | US$98.5萬 | 0.00% |
| Ascent Advisors, LLC | US$65.8萬 | 1.21% |
| JANE STREET GROUP, LLC | US$61.6萬 | 0.00% |
| CITADEL ADVISORS LLC | US$42.2萬 | 0.00% |
| Militia Capital Management LLC | US$40.2萬 | 0.09% |
| SBI Securities Co., Ltd. | US$6.3萬 | 0.00% |
| Golden State Wealth Management, LLC | US$6.1萬 | 0.01% |
| Copia Wealth Management | US$5.8萬 | 0.04% |
| ROYAL BANK OF CANADA | US$5.5萬 | 0.00% |
| INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | US$6242.0 | 0.00% |
| MORGAN STANLEY | US$4144.0 | 0.00% |
| Aptus Capital Advisors, LLC | US$798.0 | 0.00% |
| Central Pacific Bank - Trust Division | US$14.0 | 0.00% |
| WELLS FARGO & COMPANY/MN | US$4.0 | 0.00% |