目前共有 16 家機構持有 SEA，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 |
|---|---|---|
| IMC-Chicago, LLC | US$9573.7萬 | 0.02% |
| JPMORGAN CHASE & CO | US$5350.9萬 | 0.00% |
| SIMPLEX TRADING, LLC | US$3210.5萬 | 0.01% |
| GROUP ONE TRADING LLC | US$2403.1萬 | 0.03% |
| Capital Markets Trading UK LLP | US$419.9萬 | 0.04% |
| BENJAMIN EDWARDS INC | US$258.9萬 | 0.03% |
| HRT FINANCIAL LP | US$131.6萬 | 0.00% |
| SG Americas Securities, LLC | US$92.4萬 | 0.00% |
| JANE STREET GROUP, LLC | US$71.7萬 | 0.00% |
| CITADEL ADVISORS LLC | US$57.4萬 | 0.00% |
| CoreCap Advisors, LLC | US$23.0萬 | 0.01% |
| OSAIC HOLDINGS, INC. | US$2.2萬 | 0.00% |
| LGT Financial Advisors LLC | US$1.1萬 | 0.06% |
| UBS Group AG | US$8927.0 | 0.00% |
| HARBOUR INVESTMENTS, INC. | US$5082.0 | 0.00% |
| MORGAN STANLEY | US$33.0 | 0.00% |