目前共有 13 家機構持有 RDIB，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 |
|---|---|---|
| Teton Advisors, LLC | US$68.8萬 | 0.48% |
| GAMCO INVESTORS, INC. ET AL | US$31.5萬 | 0.00% |
| DIMENSIONAL FUND ADVISORS LP | US$16.2萬 | 0.00% |
| GABELLI FUNDS LLC | US$13.6萬 | 0.00% |
| INVESTMENT COUNSEL CO OF NEVADA | US$5.5萬 | 0.12% |
| VANGUARD FIDUCIARY TRUST CO | US$4.2萬 | 0.00% |
| VANGUARD CAPITAL MANAGEMENT LLC | US$3.8萬 | 0.00% |
| CITIGROUP INC | US$3.8萬 | 0.00% |
| UBS Group AG | US$1.2萬 | 0.00% |
| Tower Research Capital LLC (TRC) | US$8760.0 | 0.00% |
| Vanguard Global Advisers, LLC | US$2367.0 | 0.00% |
| SBI Securities Co., Ltd. | US$28.0 | 0.00% |
| ROYAL BANK OF CANADA | US$0.0 | 0.00% |