MF · holdings as filed 2026-03-31
What's inside BBMUX?
Bridge Builder Municipal Bond Fund
Holdings
5,724
positions in the fund
Expense ratio
0.12%
net, per year
Fund size
$20B
total net assets
Top 15 holdings
1
FRGXXFIDELITY INV MMKT GOVT-INST
2.71%
2
AL SEEPWR 5 10/01/2030SOUTHEAST ENERGY-E
0.62%
3
KY KYSPWR 01/01/2055KY PUB ENERGY AUTH-B-
0.39%
4
CA CCEDEV 01/01/2055CA CMNTY CHOICE-B
0.30%
5
PR PRCGEN 4.33 07/01/2040RESTRUCTURED-SER A-2
0.28%
6
FL MIATRN 5 10/01/2032MIAMI-DADE CO-A-AMT
0.27%
7
IL CHIEDU 6 04/01/2046CHICAGO IL BRD OF EDU
0.27%
8
TN TNSUTL 5 12/01/2035TN ENERGY ACQ CORP-A
0.25%
9
TX HAREDU 12/01/2060HARRIS CO CULTURAL-A
0.24%
10
AL SEEPWR 10/01/2055SE ENERGY AUTH-C
0.23%
11
TX TAREDU 11/15/2051TARRANT CULTURAL-C-2
0.22%
12
GA MSEPWR 5 12/01/2033MAIN STREET ENERGY-D
0.22%
13
CA SFOAPT 5 05/01/2033SAN FRANCISCO-C-REF
0.22%
14
GA MAIUTL 12/01/2053MAIN ST NAT GAS-E-2
0.21%
15
NV LVVWTR 5 06/01/2039LAS VEGAS VLY WTR DT
0.21%
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Unwrap your portfolio →Data source: official SEC Form N-PORT filings (as of 2026-03-31); expense ratio from SEC prospectus (risk/return) filings. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.
Informational and educational only — not investment advice.