目前共有 11 家機構持有 IHT，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 |
|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | US$8.8萬 | 0.00% |
| VANGUARD CAPITAL MANAGEMENT LLC | US$3.6萬 | 0.00% |
| HighTower Advisors, LLC | US$2.7萬 | 0.00% |
| STATE STREET CORP | US$1.9萬 | 0.00% |
| GEODE CAPITAL MANAGEMENT, LLC | US$1.9萬 | 0.00% |
| VANGUARD FIDUCIARY TRUST CO | US$1.6萬 | 0.00% |
| TWO SIGMA SECURITIES, LLC | US$1.1萬 | 0.00% |
| CARNEGIE MELLON UNIVERSITY | US$1.0萬 | 0.02% |
| Tower Research Capital LLC (TRC) | US$4273.0 | 0.00% |
| Dunhill Financial, LLC | US$458.0 | 0.00% |
| CITIGROUP INC | US$1.0 | 0.00% |