Janus Henderson Mortgage-Backed Securities ETF
JMBS
270 hedge funds and large institutions have $5.93B invested in Janus Henderson Mortgage-Backed Securities ETF in 2026 Q1 according to their latest regulatory filings, with 40 funds opening new positions, 129 increasing their positions, 79 reducing their positions, and 32 closing their positions.
63% more repeat investments, than reductions
Existing positions increased: 129 | Existing positions reduced: 79
25% more first-time investments, than exits
New positions opened: 40 | Existing positions closed: 32
0% more funds holding
Funds holding: 269 → 270 (+1)
2.28% less ownership
Funds ownership: 92.79% → 90.51% (-2.3%)
6% less funds holding in top 10
Funds holding in top 10: 31 → 29 (-2)
8% less capital invested
Capital invested by funds: $6.46B → $5.93B (-$525M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Morgan Stanley
New York
|
+$144M |
| 2 |
ACM
Advance Capital Management
Southfield,
Michigan
|
+$80.1M |
| 3 |
Ameriprise
Minneapolis,
Minnesota
|
+$73.7M |
| 4 |
EWA
EP Wealth Advisors
Torrance,
California
|
+$47M |
| 5 |
Corient Private Wealth
Miami,
Florida
|
+$26.9M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RBA
Richard Bernstein Advisors
New York
|
-$405M |
| 2 |
Bank of America
Charlotte,
North Carolina
|
-$393M |
| 3 |
PA
Parallel Advisors
San Francisco,
California
|
-$51M |
| 4 |
Wealth Enhancement Advisory Services
Plymouth,
Minnesota
|
-$37.6M |
| 5 |
Envestnet Asset Management
Chicago,
Illinois
|
-$29.9M |
JMBS Hedge Fund Activity: Q1 2026 in Review
270 of the 8,177 institutional investors tracked by Wall St. Rank reported a position in Janus Henderson Mortgage-Backed Securities ETF (JMBS) for Q1 2026, worth a combined $5.93B — down 8.1% from $6.46B a quarter earlier.
Buyers outnumbered sellers: 40 funds opened new JMBS positions and 32 closed out — a net gain of 8 holders — while 129 added to existing stakes and 79 trimmed.
The largest buyer was Morgan Stanley, adding an estimated $144M. The largest seller was Richard Bernstein Advisors, cutting an estimated $405M.
- 270 institutional investors held Janus Henderson Mortgage-Backed Securities ETF (JMBS) as of Q1 2026, up from 269 in Q4 2025.
- Funds reported $5.93B of Janus Henderson Mortgage-Backed Securities ETF stock for Q1 2026, down 8.1% quarter-over-quarter.
- 40 funds opened new Janus Henderson Mortgage-Backed Securities ETF positions in Q1 2026 and 32 closed out, a net change of +8 holders.
- The largest Janus Henderson Mortgage-Backed Securities ETF buyer in Q1 2026 was Morgan Stanley, an estimated $144M added.
- The largest Janus Henderson Mortgage-Backed Securities ETF seller in Q1 2026 was Richard Bernstein Advisors, an estimated $405M sold.
Based on aggregated 13F filings for Q1 2026.