GraniteShares YieldBOOST MSTR ETF
MTYY
1 hedge funds and large institutions have $77 invested in GraniteShares YieldBOOST MSTR ETF in 2026 Q2 according to their latest regulatory filings, with 1 funds opening new positions, increasing their positions, reducing their positions, and 1 closing their positions.
0% more funds holding
Funds holding: 1 → 1 (0)
0% more first-time investments, than exits
New positions opened: 1 | Existing positions closed: 1
8.69% less ownership
Funds ownership: 8.69% → 0% (-8.7%)
100% less capital invested
Capital invested by funds: $218K → $77 (-$218K)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Simplex Trading
Chicago,
Illinois
|
+$102 |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$218K |
MTYY Hedge Fund Activity: Q2 2026 in Review
1 of the 8,343 institutional investors tracked by Wall St. Rank reported a position in GraniteShares YieldBOOST MSTR ETF (MTYY) for Q2 2026, worth a combined $77 — down 100% from $218K a quarter earlier.
Fund positioning in MTYY was balanced in Q2 2026: 1 fund opened new positions, 1 closed out, 0 added to existing stakes and 0 trimmed.
The largest buyer was Simplex Trading, opening a new position worth an estimated $102. The largest seller was Jane Street, exiting entirely with an estimated $218K sold.
- 1 institutional investor held GraniteShares YieldBOOST MSTR ETF (MTYY) as of Q2 2026, unchanged from Q1 2026.
- Funds reported $77 of GraniteShares YieldBOOST MSTR ETF stock for Q2 2026, down 100% quarter-over-quarter.
- 1 fund opened new GraniteShares YieldBOOST MSTR ETF positions in Q2 2026 and 1 closed out, a net change of 0 holders.
- The largest GraniteShares YieldBOOST MSTR ETF buyer in Q2 2026 was Simplex Trading, an estimated $102 added.
- The largest GraniteShares YieldBOOST MSTR ETF seller in Q2 2026 was Jane Street, an estimated $218K sold.
Based on aggregated 13F filings for Q2 2026.