目前共有 21 家機構持有 MSSM，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 |
|---|---|---|
| MORGAN STANLEY | US$4.6億 | 0.03% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | US$206.0萬 | 0.00% |
| FIFTH THIRD BANCORP | US$62.5萬 | 0.00% |
| CITADEL ADVISORS LLC | US$36.0萬 | 0.00% |
| ROYAL BANK OF CANADA | US$3.9萬 | 0.00% |
| Steward Partners Investment Advisory, LLC | US$2.5萬 | 0.00% |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | US$2.3萬 | 0.00% |
| Truvestments Capital LLC | US$1.9萬 | 0.00% |
| VANGUARD ADVISERS INC | US$8621.0 | 0.00% |
| Colonial Trust Advisors | US$5368.0 | 0.00% |
| OSAIC HOLDINGS, INC. | US$4438.0 | 0.00% |
| Larson Financial Group LLC | US$3097.0 | 0.00% |
| IFP Advisors, Inc | US$2994.0 | 0.00% |
| Arax Advisory Partners | US$1703.0 | 0.00% |
| Cassaday & Co Wealth Management LLC | US$1394.0 | 0.00% |
| WELLS FARGO & COMPANY/MN | US$1291.0 | 0.00% |
| Sarver Vrooman Wealth Advisors | US$1239.0 | 0.00% |
| Aventura Private Wealth, LLC | US$929.0 | 0.00% |
| MAI Capital Management | US$775.0 | 0.00% |
| ASSETMARK, INC | US$723.0 | 0.00% |
| Investors Portfolio Services LLC | US$0.0 | 0.00% |