JPMorgan Ultra-Short Municipal Income ETF
JMST
563 hedge funds and large institutions have $3.56B invested in JPMorgan Ultra-Short Municipal Income ETF in 2026 Q2 according to their latest regulatory filings, with 43 funds opening new positions, 252 increasing their positions, 191 reducing their positions, and 29 closing their positions.
48% more first-time investments, than exits
New positions opened: 43 | Existing positions closed: 29
32% more repeat investments, than reductions
Existing positions increased: 252 | Existing positions reduced: 191
1% more funds holding
Funds holding: 556 → 563 (+7)
2% more capital invested
Capital invested by funds: $3.48B → $3.56B (+$84.1M)
1.31% less ownership
Funds ownership: 54.73% → 53.41% (-1.3%)
29% less funds holding in top 10
Funds holding in top 10: 21 → 15 (-6)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
B
Bailard
Foster City,
California
|
+$41.3M |
| 2 |
HWM
HB Wealth Management
Atlanta,
Georgia
|
+$36.5M |
| 3 |
Bank of America
Charlotte,
North Carolina
|
+$22.1M |
| 4 |
Bank of New York Mellon
New York
|
+$15.3M |
| 5 |
JP Morgan Chase
New York
|
+$10.9M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
NP
NorthRock Partners
Minneapolis,
Minnesota
|
-$42.2M |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$23.9M |
| 3 |
Mariner
Overland Park,
Kansas
|
-$13.9M |
| 4 |
Corient Private Wealth
Miami,
Florida
|
-$12.9M |
| 5 |
Cambridge Investment Research Advisors
Fairfield,
Iowa
|
-$10.2M |
JMST Hedge Fund Activity: Q2 2026 in Review
563 of the 8,349 institutional investors tracked by Wall St. Rank reported a position in JPMorgan Ultra-Short Municipal Income ETF (JMST) for Q2 2026, worth a combined $3.56B — up 2.4% from $3.48B a quarter earlier.
Buyers outnumbered sellers: 43 funds opened new JMST positions and 29 closed out — a net gain of 14 holders — while 252 added to existing stakes and 191 trimmed.
The largest buyer was Bailard, adding an estimated $41.3M. The largest seller was NorthRock Partners, cutting an estimated $42.2M.
- 563 institutional investors held JPMorgan Ultra-Short Municipal Income ETF (JMST) as of Q2 2026, up from 556 in Q1 2026.
- Funds reported $3.56B of JPMorgan Ultra-Short Municipal Income ETF stock for Q2 2026, up 2.4% quarter-over-quarter.
- 43 funds opened new JPMorgan Ultra-Short Municipal Income ETF positions in Q2 2026 and 29 closed out, a net change of +14 holders.
- The largest JPMorgan Ultra-Short Municipal Income ETF buyer in Q2 2026 was Bailard, an estimated $41.3M added.
- The largest JPMorgan Ultra-Short Municipal Income ETF seller in Q2 2026 was NorthRock Partners, an estimated $42.2M sold.
Based on aggregated 13F filings for Q2 2026.