ROUNDHILL ETF TRUST (MSTW)
Institutional ownership reported to the SEC as of Q2 2026, across 4 quarters.
6
Reporting holders
$796.6K
Reported value
10.7%
Held as options
+1
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| JANE STREET GROUP, LLC | $583.9K | 172,698 | 0.00% | new | NEW |
| CITADEL ADVISORS LLC | $145.2K | 30,505 | 0.00% | 4q | HELD |
| OLD MISSION CAPITAL LLC | $45.4K | 14,329 | 0.00% | new | NEW |
| GROUP ONE TRADING LLC | $16.9K | 5,331 | 0.00% | 4q | -15.8%-$3.2K |
| SIMPLEX TRADING, LLC | $4.2K | 1,315 | 0.00% | 3q | -38.3%-$2.6K |
| UBS Group AG | $989 | 312 | 0.00% | new | NEW |
| HRT FINANCIAL LP | $36 | 11,513 | 0.00% | new | NEW |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 6 | $796.6K | 224,490 | 3 | 0 | 2 | 10.7% |
| Q1 2026 | 5 | $327.8K | 18,362 | 0 | 2 | 1 | 64.9% |
| Q4 2025 | 10 | $18.0M | 1,799,246 | 5 | 4 | 0 | 1.9% |
| Q3 2025 | 6 | $8.7M | 271,604 | 6 | 0 | 0 | 3.4% |