US Treasury 12 Month Bill ETF
OBIL
63 hedge funds and large institutions have $206M invested in US Treasury 12 Month Bill ETF in 2026 Q1 according to their latest regulatory filings, with 6 funds opening new positions, 27 increasing their positions, 20 reducing their positions, and 7 closing their positions.
35% more repeat investments, than reductions
Existing positions increased: 27 | Existing positions reduced: 20
7% more capital invested
Capital invested by funds: $192M → $206M (+$14M)
2.05% more ownership
Funds ownership: 64.57% → 66.62% (+2%)
3% less funds holding
Funds holding: 65 → 63 (-2)
14% less first-time investments, than exits
New positions opened: 6 | Existing positions closed: 7
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Morgan Stanley
New York
|
+$5.38M |
| 2 |
LPL Financial
San Diego,
California
|
+$3.76M |
| 3 |
SFS
Sunrise Financial Services
Burien,
Washington
|
+$3.74M |
| 4 |
Raymond James Financial
St Petersburg,
Florida
|
+$3.2M |
| 5 |
Rockefeller Capital Management
New York
|
+$2.93M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
FTUS
Flow Traders U.S.
New York
|
-$3.94M |
| 2 |
MML Investors Services
Springfield,
Massachusetts
|
-$2.79M |
| 3 |
Stifel Financial
St. Louis,
Missouri
|
-$2.48M |
| 4 |
MSFS
Main Street Financial Solutions
Newtown,
Pennsylvania
|
-$2.11M |
| 5 |
Jane Street
New York
|
-$1.38M |
OBIL Hedge Fund Activity: Q1 2026 in Review
63 of the 8,191 institutional investors tracked by Wall St. Rank reported a position in US Treasury 12 Month Bill ETF (OBIL) for Q1 2026, worth a combined $206M — up 7.3% from $192M a quarter earlier.
Sellers outnumbered buyers: 7 funds closed out of OBIL and 6 opened new positions — a net loss of 1 holder — while 20 trimmed existing stakes and 27 added.
The largest buyer was Morgan Stanley, adding an estimated $5.38M. The largest seller was Flow Traders U.S., exiting entirely with an estimated $3.94M sold.
- 63 institutional investors held US Treasury 12 Month Bill ETF (OBIL) as of Q1 2026, down from 65 in Q4 2025.
- Funds reported $206M of US Treasury 12 Month Bill ETF stock for Q1 2026, up 7.3% quarter-over-quarter.
- 6 funds opened new US Treasury 12 Month Bill ETF positions in Q1 2026 and 7 closed out, a net change of -1 holder.
- The largest US Treasury 12 Month Bill ETF buyer in Q1 2026 was Morgan Stanley, an estimated $5.38M added.
- The largest US Treasury 12 Month Bill ETF seller in Q1 2026 was Flow Traders U.S., an estimated $3.94M sold.
Based on aggregated 13F filings for Q1 2026.