Who owns OSSL?
Defiance Daily Target 2X Long OSS ETF · Defiance
1 institutions reported holding OSSL, worth $16K, in Form 13F filings for June 30, 2026.
Top 1 institutional holders of OSSL
| Firm | Location | Value | Shares | Change |
|---|---|---|---|---|
| Optiver Holding B.V. | Amsterdam, Netherlands | $16K | 791 | New position |
From SEC Form 13F, for managers with $100M+ in US securities. Change compares June 30, 2026 with March 31, 2026. “New position” means no holding in the prior filing we have.
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Frequently asked questions
Who owns OSSL?
1 institutional managers reported holding OSSL in Form 13F filings for June 30, 2026, worth $16K in total. The largest reported position was held by Optiver Holding B.V., at $16K.
What is a Form 13F?
A quarterly report filed with the SEC by institutional investment managers with $100 million or more in qualifying US securities. It lists their long positions at quarter end. It doesn't cover retail investors, cash, short positions, or managers under the threshold, so it shows part of a fund's ownership, not all of it.
How often is OSSL ownership data updated?
13F filings are due 45 days after each quarter ends. The next set is due around mid-November. Positions can be up to about four and a half months old by the time a new set arrives.