BBMUX Holdings — Bridge Builder Municipal Bond Fund
Data updated: 2026-10-28
BBMUX holds 5,793 securities. The top 10 make up 3.6% of net assets, led by Fidelity Government Portfolio Cl Institutional 0.00000000 (0.94%) and Southeast Energy Authority A C Regd B/e 5.00000000 (0.46%). Municipal Bonds (99.3%) and Funds & ETFs (1.0%) are the largest sectors, and 97.0% of the portfolio is in United States. Debt holdings: 5,749 positions, 94.8% of assets.
Holdings cover 98.47% of net asset value (97.27% of total assets; remainder is cash and receivables). As of June 30, 2026 · N-PORT.
BBMUX Portfolio Holdings
5,793 holdings of Bridge Builder Municipal Bond Fund by percentage of net assets, from the fund's SEC N-PORT filing as of June 30, 2026. The 100 largest are listed below; the interactive table on this page lists all 5,793. The full list of 5,793 holdings can be downloaded as a CSV file from this page.
| Holding | Ticker | Sector | % of net assets | Value (USD) |
|---|---|---|---|---|
| Fidelity Government Portfolio Cl Institutional 0.00000000 | — | Funds & ETFs | 0.94% | $195,560,506 |
| Southeast Energy Authority A C Regd B/e 5.00000000 | — | Municipal Bonds | 0.46% | $94,705,525 |
| Kentucky St Public Energy Auth Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.37% | $77,643,375 |
| California Cmnty Choice Fing A Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.29% | $60,880,442 |
| Puerto Rico Sales Tax Fing Cor Regd Oid B/e 4.32900000 | — | Municipal Bonds | 0.28% | $57,254,948 |
| Miami-Dade Cnty Fl Aviation Re Regd N/c B/e Amt 5.00000000 | — | Municipal Bonds | 0.26% | $54,751,740 |
| Chicago Il Brd of Edu Dedicate Regd Oid B/e 6.00000000 | — | Municipal Bonds | 0.26% | $53,648,185 |
| Main Street Energy, Inc. Energy Regd B/e 5.00000000 | — | Municipal Bonds | 0.25% | $51,643,430 |
| Black Belt Energy Gas Dist Al Regd B/e 5.00000000 | — | Municipal Bonds | 0.24% | $50,574,106 |
| Univ of Texas Tx Univ Revenues Regd V/r B/e 2.67000000 | — | Municipal Bonds | 0.24% | $50,000,000 |
| Tennessee St Energy Acquisitio Regd B/e 5.00000000 | — | Municipal Bonds | 0.24% | $49,712,495 |
| Harris Cnty Tx Cultural Edu Fa Regd V/r B/e 2.60000000 | — | Municipal Bonds | 0.24% | $49,155,000 |
| Southeast Energy Authority A C Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.22% | $46,678,130 |
| Tarrant Cnty Tx Cultural Edu F Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.22% | $46,119,185 |
| San Francisco Ca City &cnty Ar Regd N/c B/e Amt 5.00000000 | — | Municipal Bonds | 0.21% | $44,433,504 |
| Main Street Natural Gas, Inc. Ga Regd V/r B/e 4.12540000 | — | Municipal Bonds | 0.21% | $43,222,637 |
| Energy S E Al A Cooperative Di Regd B/e 5.00000000 | — | Municipal Bonds | 0.21% | $43,160,909 |
| Las Vegas Vly NV Wtr Dist Regd B/e 5.00000000 | — | Municipal Bonds | 0.21% | $42,778,955 |
| Texas St Muni Gas Acquisition Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.20% | $42,320,172 |
| New York St Transprtn Dev Corp. Regd B/e Amt 5.00000000 | — | Municipal Bonds | 0.20% | $42,282,342 |
| Port of Port Arthur Tx Nav Dis Regd V/r B/e 2.73000000 | — | Municipal Bonds | 0.20% | $41,365,000 |
| Main Street Natural Gas, Inc. Ga Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.19% | $40,136,335 |
| S E Alabama St Gas Sply Dist G Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.19% | $40,142,010 |
| S E Alabama St Gas Sply Dist G Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.19% | $39,786,176 |
| National Fin Auth Nh Muni Ctfs Regd N/c Oid B/e 4.21600000 | — | Municipal Bonds | 0.19% | $38,856,266 |
| Univ of California Ca Revenues Regd B/e 5.25000000 | — | Municipal Bonds | 0.19% | $38,710,357 |
| Main Street Natural Gas, Inc. Ga Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.18% | $36,785,920 |
| Kentucky St Property & Bldgs C Regd N/c B/e 5.00000000 | — | Municipal Bonds | 0.18% | $36,783,612 |
| Main Street Natural Gas, Inc. Ga Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.18% | $36,504,742 |
| Patriots Energy Group Fing Agy Regd V/r B/e 5.25000000 | — | Municipal Bonds | 0.17% | $36,255,070 |
| Main Street Energy, Inc. Energy Regd B/e 5.00000000 | — | Municipal Bonds | 0.17% | $35,944,865 |
| Black Belt Energy Gas Dist Al Regd V/r B/e 4.00000000 | — | Municipal Bonds | 0.17% | $35,789,411 |
| Centrl Plains Energy Proj Ne G Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.17% | $35,265,522 |
| Lower Al Gas Dist Gas Proj Rev Regd B/e 5.00000000 | — | Municipal Bonds | 0.17% | $35,128,164 |
| Tennessee St Energy Acquisitio Regd B/e 5.00000000 | — | Municipal Bonds | 0.17% | $34,995,406 |
| Black Belt Energy Gas Dist Al Regd B/e 5.00000000 | — | Municipal Bonds | 0.17% | $34,800,649 |
| Tarrant Cnty Tx Cultural Edu F Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.17% | $34,707,232 |
| Black Belt Energy Gas Dist Al Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.16% | $34,069,526 |
| Black Belt Energy Gas Dist Al Regd B/e 5.00000000 | — | Municipal Bonds | 0.16% | $33,932,422 |
| Pefa, Inc. Ia Gas Proj Revenue Regd B/e 5.00000000 | — | Municipal Bonds | 0.16% | $33,525,662 |
| Black Belt Energy Gas Dist Al Regd B/e 5.00000000 | — | Municipal Bonds | 0.16% | $33,316,631 |
| New York Ny Regd V/r B/e 2.60000000 | — | Municipal Bonds | 0.16% | $33,200,000 |
| Southeast Energy Authority A C Regd B/e 5.00000000 | — | Municipal Bonds | 0.16% | $32,789,250 |
| Illinois St Regd B/e 5.00000000 | — | Municipal Bonds | 0.16% | $32,607,372 |
| Main Street Natural Gas, Inc. Ga Regd V/r B/e 4.00000000 | — | Municipal Bonds | 0.16% | $32,577,429 |
| Kentucky St Public Energy Auth Regd V/r B/e 5.25000000 | — | Municipal Bonds | 0.16% | $32,394,622 |
| Preref California Hsg Fin Agy Ltd. Obl Regd V/r B/e Prerefunded 08/02/26 @ 100 3.60000000 | — | Municipal Bonds | 0.15% | $31,801,084 |
| Minnesota Muni Gas Agy Gas Pro Regd B/e 5.00000000 | — | Municipal Bonds | 0.15% | $31,696,142 |
| Black Belt Energy Gas Dist Al Regd B/e 5.00000000 | — | Municipal Bonds | 0.15% | $31,327,689 |
| Arkansas Dev Fin Auth Environm Regd V/r B/e Amt 4.00000000 | — | Municipal Bonds | 0.15% | $31,189,850 |
| Black Belt Energy Gas Dist Al Regd B/e 5.00000000 | — | Municipal Bonds | 0.15% | $30,438,879 |
| New Jersey St Econ Dev Auth Re Regd N/c B/e 5.25000000 | — | Municipal Bonds | 0.14% | $30,125,388 |
| California Cmnty Choice Fing A Regd B/e 5.00000000 | — | Municipal Bonds | 0.14% | $29,543,494 |
| Energy S E Al A Cooperative Di Regd V/r B/e 5.25000000 | — | Municipal Bonds | 0.14% | $29,303,452 |
| Puerto Rico Cmwlth Regd N/c V/r B/e 0.00000000 | — | Municipal Bonds | 0.14% | $29,263,331 |
| California Cmnty Choice Fing A Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.14% | $29,273,963 |
| Illinois St Toll Highway Auth Regd B/e 5.00000000 | — | Municipal Bonds | 0.14% | $28,751,586 |
| New Jersey St Hlth Care Facs F Regd N/c B/e 5.00000000 | — | Municipal Bonds | 0.14% | $28,240,774 |
| Texas St Transprtn Fin Corp. Sh Regd B/e 5.00000000 | — | Municipal Bonds | 0.14% | $28,257,137 |
| New York City Ny Hsg Dev Corp. Regd V/r B/e 3.25000000 | — | Municipal Bonds | 0.13% | $27,587,714 |
| California Cmnty Choice Fing A Regd B/e 5.00000000 | — | Municipal Bonds | 0.13% | $27,545,864 |
| Main Street Natural Gas, Inc. Ga Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.13% | $27,415,182 |
| Main Street Natural Gas, Inc. Ga Regd V/r B/e 4.00000000 | — | Municipal Bonds | 0.13% | $27,367,040 |
| Kentucky St Public Energy Auth Regd V/r B/e 4.00000000 | — | Municipal Bonds | 0.13% | $27,328,439 |
| Texas St Regd B/e 5.00000000 | — | Municipal Bonds | 0.13% | $27,261,462 |
| Texas St Transprtn Fin Corp. Sh Regd B/e 5.00000000 | — | Municipal Bonds | 0.13% | $27,090,629 |
| Chicago Il O'hare Internationa Regd B/e 5.00000000 | — | Municipal Bonds | 0.13% | $26,872,382 |
| S Miami Fl Hlth Facs Auth Regd N/c B/e 5.00000000 | — | Municipal Bonds | 0.13% | $26,709,569 |
| Miami-Dade Cnty Fl Aviation Re Regd N/c B/e Amt 5.00000000 | — | Municipal Bonds | 0.13% | $26,659,782 |
| Energy S E Al A Cooperative Di Regd B/e 5.00000000 | — | Municipal Bonds | 0.13% | $26,634,917 |
| Colorado St Hlth Facs Auth Rev Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.13% | $26,579,016 |
| Texas St Muni Gas Acquisition Regd B/e 5.00000000 | — | Municipal Bonds | 0.13% | $26,558,310 |
| New Jersey St Hlth Care Facs F Regd N/c B/e 5.00000000 | — | Municipal Bonds | 0.13% | $26,487,104 |
| Met Washington Dc Arpts Auth A Regd N/c B/e Amt 5.00000000 | — | Municipal Bonds | 0.13% | $26,023,061 |
| Port of Morrow or Regd B/e 5.15000000 | — | Municipal Bonds | 0.12% | $25,793,817 |
| Maryland St Regd B/e 5.00000000 | — | Municipal Bonds | 0.12% | $25,727,141 |
| Puerto Rico Cmwlth Regd N/c V/r B/e 0.00000000 | — | Municipal Bonds | 0.12% | $25,694,571 |
| Tarrant Cnty Tx Cultural Edu F Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.12% | $25,585,251 |
| Southeast Energy Authority A C Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.12% | $25,367,519 |
| Dallas-Fort Worth Tx Internati Regd B/e Amt 5.00000000 | — | Municipal Bonds | 0.12% | $25,234,015 |
| Colorado St Hlth Facs Auth Rev Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.12% | $25,231,339 |
| Texas St Muni Gas Acquisition Regd N/c V/r B/e 3.28110000 | — | Municipal Bonds | 0.12% | $25,091,217 |
| Black Belt Energy Gas Dist Al Regd B/e 5.00000000 | — | Municipal Bonds | 0.12% | $25,028,890 |
| Illinois St Regd B/e 5.00000000 | — | Municipal Bonds | 0.12% | $24,844,369 |
| New York City Ny Transitional Regd B/e 4.00000000 | — | Municipal Bonds | 0.12% | $24,613,863 |
| Maryland St Regd B/e 5.00000000 | — | Municipal Bonds | 0.12% | $24,474,473 |
| Main Street Natural Gas, Inc. Ga Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.12% | $24,429,048 |
| Texas St Regd B/e 5.00000000 | — | Municipal Bonds | 0.12% | $24,359,342 |
| California Cmnty Choice Fing A Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.12% | $24,368,771 |
| California St Infrastructure & Regd V/r B/e Amt 12.00000000 | — | Municipal Bonds | 0.12% | $24,257,925 |
| Texas St Dept of Hsg & Cmnty A Regd B/e Gnma Co. 6.00000000 | — | Municipal Bonds | 0.12% | $24,046,192 |
| Southeast Energy Authority A C Regd V/r B/e 5.25000000 | — | Municipal Bonds | 0.11% | $23,846,618 |
| Black Belt Energy Gas Dist Al Regd B/e 5.00000000 | — | Municipal Bonds | 0.11% | $23,800,008 |
| Hillsborough Cnty Fla Indl Dev Regd N/c B/e 5.00000000 | — | Municipal Bonds | 0.11% | $23,672,087 |
| Illinois Fin Auth Surface Frei Regd V/r B/e Amt 4.12500000 | — | Municipal Bonds | 0.11% | $23,626,025 |
| California Cmnty Choice Fing A Regd V/r B/e 5.25000000 | — | Municipal Bonds | 0.11% | $23,206,203 |
| Indiana St Fin Auth Hosp Reven Regd V/r B/e 5.00000000 | — | Municipal Bonds | 0.11% | $22,995,174 |
| Triborough Ny Bridge & Tunnel Regd N/c B/e 5.00000000 | — | Municipal Bonds | 0.11% | $22,903,175 |
| Triborough Ny Bridge & Tunnel Regd B/e 5.00000000 | — | Municipal Bonds | 0.11% | $22,839,052 |
| Pennsylvania St Regd B/e 5.00000000 | — | Municipal Bonds | 0.11% | $22,772,656 |
BBMUX Sector Allocation
Bridge Builder Municipal Bond Fund holdings grouped by sector, by share of the portfolio's market value.
| Sector | Weight | Holdings |
|---|---|---|
| Municipal Bonds | 99.3% | 5782 |
| Funds & ETFs | 1.0% | 1 |
| Mortgage / Securitized | 0.0% | 4 |
| Government Bonds | 0.0% | 1 |
| Unknown | -0.3% | 5 |
BBMUX Country Allocation
Where Bridge Builder Municipal Bond Fund's holdings are domiciled, by percentage of net assets (largest 4).
| Country | % of net assets |
|---|---|
| United States | 97.0% |
| Puerto Rico | 1.2% |
| U.S. Virgin Islands | 0.2% |
| Guam | 0.1% |
BBMUX Portfolio Allocation
Asset-class allocation of Bridge Builder Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 96.2% |
| Securitized | 1.5% |
| Cash & Equivalents | 1.0% |
BBMUX Debt Constituents
Largest debt holdings of Bridge Builder Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Southeast Energy A 5% 10/01/30 | 0.46% |
| Kentucky St Publi V/r 01/01/55 | 0.37% |
| California Cmnty V/r 01/01/55 | 0.29% |
| Puerto Rico SA 4.329% 07/01/40 | 0.28% |
| Miami-Dade Cnty Fl 5% 10/01/32 | 0.26% |
| Chicago Il Brd of 6% 04/01/46 | 0.26% |
| Main Street Energy 5% 10/01/33 | 0.25% |
| Black Belt Energy 5% 11/01/36 | 0.24% |
| Univ of Texas Tx V/r 08/01/56 | 0.24% |
| Tennessee St Energ 5% 12/01/35 | 0.24% |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.