1 institutions reported holding $154,000 of One One S&P 500 and Bitcoin ETF (OOSB) in SEC 13F filings for 2026-03-31. Largest institutional holders: FLOW TRADERS U.S. LLC ($154,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | FLOW TRADERS U.S. LLC | $154,000 | 16,616 | New |
Source: SEC Form 13F filings · as of 2026-03-31