目前共有 25 家機構持有 IGI，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 |
|---|---|---|
| SIT INVESTMENT ASSOCIATES INC | US$1377.0萬 | 0.28% |
| 1607 Capital Partners, LLC | US$654.5萬 | 0.47% |
| Karpus Management, Inc. | US$616.8萬 | 0.19% |
| UBS Group AG | US$476.6萬 | 0.00% |
| MORGAN STANLEY | US$180.3萬 | 0.00% |
| RAYMOND JAMES FINANCIAL INC | US$148.2萬 | 0.00% |
| WELLS FARGO & COMPANY/MN | US$123.1萬 | 0.00% |
| GUGGENHEIM CAPITAL LLC | US$108.8萬 | 0.01% |
| WOLVERINE ASSET MANAGEMENT LLC | US$100.9萬 | 0.01% |
| Whipplewood Advisors, LLC | US$98.5萬 | 0.51% |
| Hennion & Walsh Asset Management, Inc. | US$53.4萬 | 0.02% |
| Janney Montgomery Scott LLC | US$49.0萬 | 0.00% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | US$36.4萬 | 0.00% |
| STIFEL FINANCIAL CORP | US$36.1萬 | 0.00% |
| BANK OF AMERICA CORP /DE/ | US$34.8萬 | 0.00% |
| AMERIPRISE FINANCIAL INC | US$29.4萬 | 0.00% |
| MELFA WEALTH MANAGEMENT, INC. | US$16.8萬 | 0.10% |
| JONES FINANCIAL COMPANIES LLLP | US$14.4萬 | 0.00% |
| ROYAL BANK OF CANADA | US$10.0萬 | 0.00% |
| OSAIC HOLDINGS, INC. | US$3.6萬 | 0.00% |
| Olistico Wealth, LLC | US$1.7萬 | 0.01% |
| Noble Wealth Management PBC | US$1.6萬 | 0.01% |
| Steward Partners Investment Advisory, LLC | US$1.3萬 | 0.00% |
| AdvisorNet Financial, Inc | US$1.1萬 | 0.00% |
| CITIGROUP INC | US$16.0 | 0.00% |