Who owns MSTX?
Defiance Daily Target 2X Long MSTR ETF · Defiance
22 institutions reported holding MSTX, worth $8.1M, in Form 13F filings for June 30, 2026.
Top 10 institutional holders of MSTX
| Firm | Location | Value | Shares | Change |
|---|---|---|---|---|
| StoneX Group Inc. | New York, NY | $2.9M | 191,898 | +145,413 shares |
| UBS Group AG | Zurich, Switzerland | $1.5M | 203,798 | +203,474 shares |
| Jane Street Group, LLC | New York, NY | $1.2M | 163,958 | +151,996 shares |
| Citadel Advisors LLC | Miami, FL | $536K | 72,028 | New position |
| Optiver Holding B.V. | Amsterdam, Netherlands | $395K | 53,080 | +32,030 shares |
| Goldman Sachs Group Inc. | New York, NY | $298K | 40,000 | No change |
| Old Mission Capital LLC | Chicago, IL | $285K | 38,295 | New position |
| Mariner, LLC | Overland Park, KS | $280K | 37,662 | +16,000 shares |
| Jump Financial, LLC | Chicago, IL | $166K | 22,369 | +5,333 shares |
| Group One Trading LLC | Chicago, IL | $166K | 22,271 | −2,822 shares |
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.
Similar ETFs
Compare what they hold: MSTX vs AMDG, MSTX vs AAOX, MSTX vs XOMO, MSTX vs ROBN.
Frequently asked questions
Who owns MSTX?
22 institutional managers reported holding MSTX in Form 13F filings for June 30, 2026, worth $8.1M in total. The largest reported position was held by StoneX Group Inc., at $2.9M.
Did institutions buy or sell MSTX last quarter?
Reported 13F value rose 9.5% from March 31, 2026, which includes price moves as well as buying and selling. 7 firms reported a new position and 10 sold all of theirs.
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 MSTX 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.