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MTYY

GraniteShares YieldBOOST MSTR ETF
MTYY

1 hedge funds and large institutions have $218K invested in GraniteShares YieldBOOST MSTR ETF in 2026 Q1 according to their latest regulatory filings, with 1 funds opening new positions, increasing their positions, reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

54,037% more capital invested

Capital invested by funds: $403 → $218K (+$218K)

1.44% more ownership

Funds ownership: 0% → 1.45% (+1.4%)

0% more funds holding

Funds holding: 1 → 1 (0)

0% more first-time investments, than exits

New positions opened: 1 | Existing positions closed: 1

Holders
1
Holders Change
–
Holders Change %
0%
% of All Funds
0.01%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
1
Increased
–
Reduced
–
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Jane Street
Jane Street
New York
+$291K

Top Sellers

Rank Fund Capital Flow
1
UBS Group
UBS Group
Switzerland
-$403
Name Holding Trade Value Shares
Change 		Change in
Stake
Jane Street
1
Jane Street
New York
$218K +$291K +7,390 New
Simplex Trading
2
Simplex Trading
Illinois
$9 – – –
UBS Group
3
UBS Group
Switzerland
– -$403 -8 Closed

MTYY Hedge Fund Activity: Q1 2026 in Review

1 of the 8,134 institutional investors tracked by Wall St. Rank reported a position in GraniteShares YieldBOOST MSTR ETF (MTYY) for Q1 2026, worth a combined $218K — up 54,037% from $403 a quarter earlier.

Fund positioning in MTYY was balanced in Q1 2026: 1 fund opened new positions, 1 closed out, 0 added to existing stakes and 0 trimmed.

The largest buyer was Jane Street, opening a new position worth an estimated $291K. The largest seller was UBS Group, exiting entirely with an estimated $403 sold.

  • 1 institutional investor held GraniteShares YieldBOOST MSTR ETF (MTYY) as of Q1 2026, unchanged from Q4 2025.
  • Funds reported $218K of GraniteShares YieldBOOST MSTR ETF stock for Q1 2026, up 54,037% quarter-over-quarter.
  • 1 fund opened new GraniteShares YieldBOOST MSTR ETF positions in Q1 2026 and 1 closed out, a net change of 0 holders.
  • The largest GraniteShares YieldBOOST MSTR ETF buyer in Q1 2026 was Jane Street, an estimated $291K added.
  • The largest GraniteShares YieldBOOST MSTR ETF seller in Q1 2026 was UBS Group, an estimated $403 sold.

Based on aggregated 13F filings for Q1 2026.