GraniteShares YieldBOOST SMCI ETF
SMYY
3 hedge funds and large institutions have $280K invested in GraniteShares YieldBOOST SMCI ETF in 2025 Q4 according to their latest regulatory filings, with 3 funds opening new positions, increasing their positions, reducing their positions, and 1 closing their positions.
200% more funds holding
Funds holding: 1 → 3 (+2)
200% more first-time investments, than exits
New positions opened: 3 | Existing positions closed: 1
3.11% more ownership
Funds ownership: 0% → 3.11% (+3.1%)
56% less capital invested
Capital invested by funds: $634K → $280K (-$354K)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
+$411K |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$17.9K |
| 3 |
Fidelity Investments
Boston,
Massachusetts
|
+$20 |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$634K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
1
Citadel Advisors
Miami,
Florida
| $269K | +$411K | +20,592 | New |
|
|
2
UBS Group
Zurich,
Switzerland
| $11.7K | +$17.9K | +896 | New |
|
|
3
Fidelity Investments
Boston,
Massachusetts
| $13 | +$20 | +1 | New |
|
|
4
Jane Street
New York
| – | -$634K | -24,898 | Closed |
|
SMYY Hedge Fund Activity: Q4 2025 in Review
3 of the 8,225 institutional investors tracked by Wall St. Rank reported a position in GraniteShares YieldBOOST SMCI ETF (SMYY) for Q4 2025, worth a combined $280K — down 56% from $634K a quarter earlier.
Buyers outnumbered sellers: 3 funds opened new SMYY positions and 1 closed out — a net gain of 2 holders — while 0 added to existing stakes and 0 trimmed.
The largest buyer was Citadel Advisors, opening a new position worth an estimated $411K. The largest seller was Jane Street, exiting entirely with an estimated $634K sold.
- 3 institutional investors held GraniteShares YieldBOOST SMCI ETF (SMYY) as of Q4 2025, up from 1 in Q3 2025.
- Funds reported $280K of GraniteShares YieldBOOST SMCI ETF stock for Q4 2025, down 56% quarter-over-quarter.
- 3 funds opened new GraniteShares YieldBOOST SMCI ETF positions in Q4 2025 and 1 closed out, a net change of +2 holders.
- The largest GraniteShares YieldBOOST SMCI ETF buyer in Q4 2025 was Citadel Advisors, an estimated $411K added.
- The largest GraniteShares YieldBOOST SMCI ETF seller in Q4 2025 was Jane Street, an estimated $634K sold.
Based on aggregated 13F filings for Q4 2025.