目前共有 19 家機構持有 STI，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 |
|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | US$18.3萬 | 0.00% |
| VANGUARD CAPITAL MANAGEMENT LLC | US$11.4萬 | 0.00% |
| CITADEL ADVISORS LLC | US$9.2萬 | 0.00% |
| ADAR1 Capital Management, LLC | US$8.5萬 | 0.01% |
| XTX Topco Ltd | US$6.8萬 | 0.00% |
| VANGUARD FIDUCIARY TRUST CO | US$6.7萬 | 0.00% |
| Russell Investments Group, Ltd. | US$4.9萬 | 0.00% |
| Tower Research Capital LLC (TRC) | US$1.2萬 | 0.00% |
| FMR LLC | US$7673.0 | 0.00% |
| Allworth Financial LP | US$6310.0 | 0.00% |
| MORGAN STANLEY | US$2966.0 | 0.00% |
| JNBA Financial Advisors | US$2632.0 | 0.00% |
| UBS Group AG | US$1836.0 | 0.00% |
| ROYAL BANK OF CANADA | US$1000.0 | 0.00% |
| NISA INVESTMENT ADVISORS, LLC | US$391.0 | 0.00% |
| CITIGROUP INC | US$76.0 | 0.00% |
| Cassaday & Co Wealth Management LLC | US$19.0 | 0.00% |
| DANSKE BANK A/S | US$6.0 | 0.00% |
| BNP PARIBAS FINANCIAL MARKETS | US$4.1 | 0.00% |