JPMorgan Ultra-Short Municipal Income ETF
JMST
499 hedge funds and large institutions have $3.07B invested in JPMorgan Ultra-Short Municipal Income ETF in 2025 Q3 according to their latest regulatory filings, with 42 funds opening new positions, 250 increasing their positions, 157 reducing their positions, and 31 closing their positions.
59% more repeat investments, than reductions
Existing positions increased: 250 | Existing positions reduced: 157
35% more first-time investments, than exits
New positions opened: 42 | Existing positions closed: 31
3% more capital invested
Capital invested by funds: $2.98B → $3.07B (+$85.8M)
0% less funds holding
Funds holding: 500 → 499 (-1)
5% less funds holding in top 10
Funds holding in top 10: 19 → 18 (-1)
8.24% less ownership
Funds ownership: 73.75% → 65.51% (-8.2%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
HWM
HB Wealth Management
Atlanta,
Georgia
|
+$56.1M |
| 2 |
Bank of America
Charlotte,
North Carolina
|
+$23.5M |
| 3 |
Wealth Enhancement Advisory Services
Plymouth,
Minnesota
|
+$14.7M |
| 4 |
Raymond James Financial
St Petersburg,
Florida
|
+$9.79M |
| 5 |
JP Morgan Chase
New York
|
+$9.61M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Renaissance Technologies
New York
|
-$41.4M |
| 2 |
B
Bailard
Foster City,
California
|
-$31.6M |
| 3 |
Corient Private Wealth
Miami,
Florida
|
-$26.5M |
| 4 |
MA
MJP Associates
Farmington,
Connecticut
|
-$23.3M |
| 5 |
AO
Advisor OS
Chicago,
Illinois
|
-$23.2M |
JMST Hedge Fund Activity: Q3 2025 in Review
499 of the 7,638 institutional investors tracked by Wall St. Rank reported a position in JPMorgan Ultra-Short Municipal Income ETF (JMST) for Q3 2025, worth a combined $3.07B — up 2.9% from $2.98B a quarter earlier.
Buyers outnumbered sellers: 42 funds opened new JMST positions and 31 closed out — a net gain of 11 holders — while 250 added to existing stakes and 157 trimmed.
The largest buyer was HB Wealth Management, adding an estimated $56.1M. The largest seller was Renaissance Technologies, exiting entirely with an estimated $41.4M sold.
- 499 institutional investors held JPMorgan Ultra-Short Municipal Income ETF (JMST) as of Q3 2025, down from 500 in Q2 2025.
- Funds reported $3.07B of JPMorgan Ultra-Short Municipal Income ETF stock for Q3 2025, up 2.9% quarter-over-quarter.
- 42 funds opened new JPMorgan Ultra-Short Municipal Income ETF positions in Q3 2025 and 31 closed out, a net change of +11 holders.
- The largest JPMorgan Ultra-Short Municipal Income ETF buyer in Q3 2025 was HB Wealth Management, an estimated $56.1M added.
- The largest JPMorgan Ultra-Short Municipal Income ETF seller in Q3 2025 was Renaissance Technologies, an estimated $41.4M sold.
Based on aggregated 13F filings for Q3 2025.