TSBBX Holdings — Nuveen Core Impact Bond Fund
Data updated: 2026-08-27
TSBBX holds 1,118 securities. The top 10 make up 23.9% of net assets, led by United States Treasury Note (4.22%) and United States Treasury Note (4.05%). Corporate Bonds (34.7%) and Mortgage / Securitized (31.6%) are the largest sectors, and 80.0% of the portfolio is in United States. Debt holdings: 559 positions, 64.9% of assets.
Holdings cover 99.67% of net asset value (98.68% of total assets; remainder is cash and receivables). As of June 30, 2026 · N-PORT.
TSBBX Portfolio Holdings
1,118 holdings of Nuveen Core Impact 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 1,118.
| Holding | Ticker | Sector | % of net assets | Value (USD) |
|---|---|---|---|---|
| United States Treasury Note | — | Government Bonds | 4.22% | $341.33M |
| United States Treasury Note | — | Government Bonds | 4.05% | $327.58M |
| United States Treasury Note | — | Government Bonds | 3.78% | $306.05M |
| United States Treasury Note | — | Government Bonds | 3.47% | $280.42M |
| United States Treasury Note | — | Government Bonds | 2.44% | $197.08M |
| Fixed Income Clearing Corporation | — | Unknown | 1.58% | $127.94M |
| Fannie Mae Pool | — | Mortgage / Securitized | 1.48% | $119.59M |
| Fannie Mae Pool | — | Mortgage / Securitized | 1.06% | $85.65M |
| United States Treasury Note/Bond | — | Government Bonds | 1.04% | $83.80M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.75% | $60.77M |
| United States Treasury Note | — | Government Bonds | 0.73% | $58.91M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.72% | $57.84M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.70% | $56.92M |
| United States Treasury Note | — | Government Bonds | 0.70% | $56.58M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.50% | $40.60M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.48% | $38.72M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.46% | $36.90M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.43% | $34.75M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.41% | $33.04M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.40% | $32.32M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.37% | $29.78M |
| International Bank for Reconstruction & Development | — | Corporate Bonds | 0.36% | $29.15M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.34% | $27.42M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.34% | $27.23M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.33% | $27.04M |
| Export Development Canada | — | Government Bonds | 0.33% | $26.67M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.33% | $26.51M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.32% | $25.49M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.31% | $24.89M |
| New Hampshire Business Finance Authority | — | Municipal Bonds | 0.31% | $24.77M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.29% | $23.41M |
| International Bank for Reconstruction & Development | — | Corporate Bonds | 0.28% | $22.54M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.28% | $22.24M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.27% | $22.24M |
| Connecticut Avenue Securities Trust | — | Mortgage / Securitized | 0.27% | $21.94M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.27% | $21.58M |
| Pacific Gas and Electric Co | — | Corporate Bonds | 0.27% | $21.58M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.26% | $20.80M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.26% | $20.72M |
| CIF Capital Markets Mechanism plc | — | Corporate Bonds | 0.25% | $20.11M |
| Federal Home Loan Mortgage Corp | — | Government Bonds | 0.24% | $19.17M |
| United States Treasury Note/Bond | — | Government Bonds | 0.24% | $19.14M |
| African Development Bank | — | Corporate Bonds | 0.23% | $18.95M |
| Federation des Caisses Desjardins du Quebec | — | Corporate Bonds | 0.23% | $18.62M |
| Connecticut Avenue Securities Trust | — | Mortgage / Securitized | 0.23% | $18.36M |
| JPMorgan Chase & Co | — | Corporate Bonds | 0.23% | $18.34M |
| Royal Bank of Canada | — | Corporate Bonds | 0.23% | $18.26M |
| HA Sustainable Infrastructure Capital, Inc | — | Corporate Bonds | 0.23% | $18.22M |
| Wynnton Funding Trust | — | Corporate Bonds | 0.22% | $18.17M |
| Walmart, Inc | — | Corporate Bonds | 0.22% | $18.13M |
| Intesa Sanpaolo S.p.A | — | Corporate Bonds | 0.22% | $18.10M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.22% | $17.69M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.22% | $17.48M |
| Inter-American Investment Corp | — | Corporate Bonds | 0.22% | $17.47M |
| OMERS Finance Trust | — | Government Bonds | 0.22% | $17.44M |
| International Bank for Reconstruction & Development | — | Corporate Bonds | 0.22% | $17.42M |
| Brazilian Government International Bond | — | Government Bonds | 0.21% | $17.12M |
| International Finance Corp | — | Corporate Bonds | 0.21% | $17.12M |
| Canadian Imperial Bank of Commerce | — | Corporate Bonds | 0.21% | $17.07M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.21% | $17.04M |
| Topaz Solar Farms LLC | — | Corporate Bonds | 0.21% | $16.86M |
| Arab Petroleum Investments Corp | — | Corporate Bonds | 0.21% | $16.83M |
| Metropolitan Water Reclamation District of Greater Chicago | — | Municipal Bonds | 0.21% | $16.81M |
| Ford Foundation | — | Corporate Bonds | 0.21% | $16.62M |
| Capital Impact Partners | — | Corporate Bonds | 0.20% | $16.36M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.20% | $16.17M |
| DTE Electric Co | — | Corporate Bonds | 0.20% | $16.06M |
| TerraForm Power Operating, LLC, Term Loan B | — | Corporate Bonds | 0.20% | $16.04M |
| Freddie Mac Multifamily Variable Rate Certificate | — | Mortgage / Securitized | 0.20% | $15.89M |
| Freddie Mac Pool | — | Mortgage / Securitized | 0.20% | $15.80M |
| Omnis Funding Trust | — | Corporate Bonds | 0.19% | $15.72M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.19% | $15.52M |
| One Bryant Park Trust | — | Mortgage / Securitized | 0.19% | $15.40M |
| Bank of Montreal | — | Corporate Bonds | 0.19% | $15.38M |
| Connecticut Avenue Securities Trust | — | Mortgage / Securitized | 0.19% | $15.29M |
| California Buyer Ltd | — | Corporate Bonds | 0.19% | $15.16M |
| City of New York NY | — | Municipal Bonds | 0.19% | $15.11M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.19% | $15.10M |
| Ginnie Mae II Pool | — | Mortgage / Securitized | 0.19% | $15.03M |
| Puget Energy, Inc | — | Corporate Bonds | 0.18% | $14.96M |
| Apple, Inc | — | Corporate Bonds | 0.18% | $14.83M |
| African Development Bank | — | Corporate Bonds | 0.18% | $14.66M |
| International Finance Facility for Immunisation Co | — | Corporate Bonds | 0.18% | $14.60M |
| Thirax LLC | — | Corporate Bonds | 0.18% | $14.58M |
| RWE Finance US LLC | — | Corporate Bonds | 0.18% | $14.18M |
| OMERS Finance Trust | — | Government Bonds | 0.17% | $14.13M |
| Connecticut Avenue Securities Trust | — | Mortgage / Securitized | 0.17% | $14.12M |
| International Bank for Reconstruction & Development | — | Corporate Bonds | 0.17% | $14.09M |
| Bank of ,NV Scotia | — | Corporate Bonds | 0.17% | $14.06M |
| Fannie Mae Pool | — | Mortgage / Securitized | 0.17% | $14.05M |
| Kaiser Foundation Hospitals | — | Corporate Bonds | 0.17% | $14.02M |
| Swedbank AB | — | Corporate Bonds | 0.17% | $13.93M |
| Freddie Mac Multiclass Certificates Series | — | Mortgage / Securitized | 0.17% | $13.93M |
| Eni S.p.A | — | Corporate Bonds | 0.17% | $13.92M |
| Solar Star Funding LLC | — | Corporate Bonds | 0.17% | $13.88M |
| Equinor ASA | — | Corporate Bonds | 0.17% | $13.89M |
| Morgan Stanley Private Bank NA | — | Corporate Bonds | 0.17% | $13.74M |
| Fannie Mae-Aces | — | Mortgage / Securitized | 0.17% | $13.56M |
| Canada Government International Bond | — | Government Bonds | 0.17% | $13.51M |
| Province of Quebec Canada | — | Government Bonds | 0.17% | $13.38M |
TSBBX Sector Allocation
Nuveen Core Impact Bond Fund holdings grouped by sector, by share of the portfolio's market value.
| Sector | Weight | Holdings |
|---|---|---|
| Corporate Bonds | 34.7% | 373 |
| Mortgage / Securitized | 31.6% | 540 |
| Government Bonds | 27.1% | 82 |
| Municipal Bonds | 4.5% | 110 |
| Preferred Equity | 0.3% | 4 |
| Funds & ETFs | 0.1% | 1 |
| Unknown | 1.7% | 8 |
TSBBX Country Allocation
Where Nuveen Core Impact Bond Fund's holdings are domiciled, by percentage of net assets (largest 15).
| Country | % of net assets |
|---|---|
| United States | 80.0% |
| Canada | 5.4% |
| Unknown | 4.8% |
| United Kingdom | 1.3% |
| France | 1.3% |
| Netherlands | 1.0% |
| Italy | 0.7% |
| Ireland | 0.6% |
| Germany | 0.6% |
| Sweden | 0.4% |
| Switzerland | 0.4% |
| Norway | 0.4% |
| South Korea | 0.4% |
| Japan | 0.3% |
| Bermuda | 0.3% |
TSBBX Portfolio Allocation
Asset-class allocation of Nuveen Core Impact Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 65.5% |
| Securitized | 31.7% |
| Cash & Equivalents | 1.8% |
| Loans | 0.4% |
| Equity | 0.3% |
TSBBX Debt Constituents
Largest debt holdings of Nuveen Core Impact Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury Note/Bond | 4.22% |
| United States Treasury Note/Bond | 4.05% |
| United States Treasury Note/Bond | 3.78% |
| United States Treasury Note/Bond | 3.47% |
| United States Treasury Note/Bond | 2.44% |
| US Treasury N/b | 1.04% |
| United States Treasury Note/Bond - When Issued | 0.73% |
| United States Treasury Note/Bond | 0.70% |
| International Bank for Reconstruction & Development | 0.36% |
| Export Development Canada | 0.33% |
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.