iShares Short-Term National Muni Bond ETF
SUB
890 hedge funds and large institutions have $9.41B invested in iShares Short-Term National Muni Bond ETF in 2026 Q1 according to their latest regulatory filings, with 83 funds opening new positions, 392 increasing their positions, 257 reducing their positions, and 39 closing their positions.
113% more first-time investments, than exits
New positions opened: 83 | Existing positions closed: 39
53% more repeat investments, than reductions
Existing positions increased: 392 | Existing positions reduced: 257
8% more capital invested
Capital invested by funds: $8.72B → $9.41B (+$685M)
4% more funds holding in top 10
Funds holding in top 10: 28 → 29 (+1)
3% more funds holding
Funds holding: 865 → 890 (+25)
1.96% more ownership
Funds ownership: 84.22% → 86.18% (+2%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Bank of America
Charlotte,
North Carolina
|
+$236M |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$186M |
| 3 |
Mercer Global Advisors
Denver,
Colorado
|
+$75.7M |
| 4 |
UBS AM
Chicago,
Illinois
|
+$27.7M |
| 5 |
BMC
Bear Mountain Capital
Seattle,
Washington
|
+$27.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
TIAA Trust, National Association
Charlotte,
North Carolina
|
-$130M |
| 2 |
AC
Allstate Corporation
Northbrook,
Illinois
|
-$53.5M |
| 3 |
Bank of New York Mellon
New York
|
-$22.9M |
| 4 |
MMA
Miracle Mile Advisors
Los Angeles,
California
|
-$15.3M |
| 5 |
PPW
Pasadena Private Wealth
Pasadena,
California
|
-$8.86M |
SUB Hedge Fund Activity: Q1 2026 in Review
890 of the 8,208 institutional investors tracked by Wall St. Rank reported a position in iShares Short-Term National Muni Bond ETF (SUB) for Q1 2026, worth a combined $9.41B — up 7.9% from $8.72B a quarter earlier.
Buyers outnumbered sellers: 83 funds opened new SUB positions and 39 closed out — a net gain of 44 holders — while 392 added to existing stakes and 257 trimmed.
The largest buyer was Bank of America, adding an estimated $236M. The largest seller was TIAA Trust, National Association, cutting an estimated $130M.
- 890 institutional investors held iShares Short-Term National Muni Bond ETF (SUB) as of Q1 2026, up from 865 in Q4 2025.
- Funds reported $9.41B of iShares Short-Term National Muni Bond ETF stock for Q1 2026, up 7.9% quarter-over-quarter.
- 83 funds opened new iShares Short-Term National Muni Bond ETF positions in Q1 2026 and 39 closed out, a net change of +44 holders.
- The largest iShares Short-Term National Muni Bond ETF buyer in Q1 2026 was Bank of America, an estimated $236M added.
- The largest iShares Short-Term National Muni Bond ETF seller in Q1 2026 was TIAA Trust, National Association, an estimated $130M sold.
Based on aggregated 13F filings for Q1 2026.