US Treasury 6 Month Bill ETF
XBIL
95 hedge funds and large institutions have $389M invested in US Treasury 6 Month Bill ETF in 2025 Q4 according to their latest regulatory filings, with 17 funds opening new positions, 31 increasing their positions, 39 reducing their positions, and 10 closing their positions.
70% more first-time investments, than exits
New positions opened: 17 | Existing positions closed: 10
8% more funds holding
Funds holding: 88 → 95 (+7)
11% less capital invested
Capital invested by funds: $436M → $389M (-$46.4M)
21% less repeat investments, than reductions
Existing positions increased: 31 | Existing positions reduced: 39
28.58% less ownership
Funds ownership: 54.32% → 25.74% (-29%)
50% less funds holding in top 10
Funds holding in top 10: 2 → 1 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Cetera Investment Advisers
Schaumburg,
Illinois
|
+$10.3M |
| 2 |
Morgan Stanley
New York
|
+$5.08M |
| 3 |
Barclays
London,
United Kingdom
|
+$3.01M |
| 4 |
ABWM
Alpine Bank Wealth Management
Grand Junction,
Colorado
|
+$2.67M |
| 5 |
GS
GTS Securities
Miami,
Florida
|
+$2.54M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AFAS
Acorn Financial Advisory Services
Reston,
Virginia
|
-$31.4M |
| 2 |
Stifel Financial
St. Louis,
Missouri
|
-$21.8M |
| 3 |
UBS Group
Zurich,
Switzerland
|
-$4.46M |
| 4 |
4WM
49 Wealth Management
Austin,
Texas
|
-$3.43M |
| 5 |
Jane Street
New York
|
-$2.65M |
XBIL Hedge Fund Activity: Q4 2025 in Review
95 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in US Treasury 6 Month Bill ETF (XBIL) for Q4 2025, worth a combined $389M — down 11% from $436M a quarter earlier.
Buyers outnumbered sellers: 17 funds opened new XBIL positions and 10 closed out — a net gain of 7 holders — while 31 added to existing stakes and 39 trimmed.
The largest buyer was Cetera Investment Advisers, adding an estimated $10.3M. The largest seller was Acorn Financial Advisory Services, cutting an estimated $31.4M.
- 95 institutional investors held US Treasury 6 Month Bill ETF (XBIL) as of Q4 2025, up from 88 in Q3 2025.
- Funds reported $389M of US Treasury 6 Month Bill ETF stock for Q4 2025, down 11% quarter-over-quarter.
- 17 funds opened new US Treasury 6 Month Bill ETF positions in Q4 2025 and 10 closed out, a net change of +7 holders.
- The largest US Treasury 6 Month Bill ETF buyer in Q4 2025 was Cetera Investment Advisers, an estimated $10.3M added.
- The largest US Treasury 6 Month Bill ETF seller in Q4 2025 was Acorn Financial Advisory Services, an estimated $31.4M sold.
Based on aggregated 13F filings for Q4 2025.