# Bridge Builder Core Bond Fund

Bridge Builder Core Bond Fund is a registered fund series of Bridge Builder Trust (series S000040853). Net assets $26.3B as of 2026-03-31.

## Profile

- Series ID: S000040853
- Registrant: Bridge Builder Trust
- LEI: 549300NYIQ6F8WXPBM25
- Net assets: $26.3B
- Total assets: $28.1B
- As of: 2026-03-31

## Advisers

- [LOOMIS SAYLES AND COMPANY, L.P. (Subadvisor)](https://search.stillhousedata.com/firm/105377)
- [PGIM, INC. (Subadvisor)](https://search.stillhousedata.com/firm/105676)
- [J.P. MORGAN INVESTMENT MANAGEMENT, INC. (Subadvisor)](https://search.stillhousedata.com/firm/107038)
- [OLIVE STREET INVESTMENT ADVISERS LLC (Advisor)](https://search.stillhousedata.com/firm/166710)
- [ROBERT W. BAIRD AND CO., INC. (Subadvisor)](https://search.stillhousedata.com/firm/8158)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| F/C US 2YR NOTE (CBT) JUN26 | TUM6 XCBT | $996.8M | 378.47% |
| [FIDELITY INV MMKT GOVT-INST](https://search.stillhousedata.com/security/31607A703) | — | $962.9M | 365.59% |
| F/C US 5YR NOTE (CBT) JUN26 | FVM6 XCBT | $370.0M | 140.48% |
| F/C US 10YR NOTE (CBT)JUN26 | TYM6 XCBT | $324.3M | 123.12% |
| F/C US 10YR ULTRA FUT JUN26 | UXYM6XCBT | $253.8M | 96.38% |
| [US TREAS NTS 4% 06/30/32](https://search.stillhousedata.com/security/91282CNJ6) | — | $220.0M | 83.55% |
| [US TREAS NTS 4.625% 04/30/29](https://search.stillhousedata.com/security/91282CKP5) | — | $187.8M | 71.30% |
| [US TREAS NTS 4.25% 01/15/28](https://search.stillhousedata.com/security/91282CMF5) | — | $180.8M | 68.67% |
| [US TREAS NTS 3.375% 05/15/33](https://search.stillhousedata.com/security/91282CHC8) | — | $177.0M | 67.22% |
| [WI TREASURY SE 4.250% 02/15/54](https://search.stillhousedata.com/security/912810TX6) | — | $174.6M | 66.31% |
| [US TREAS NTS 4.125% 10/31/31](https://search.stillhousedata.com/security/91282CLU3) | — | $165.7M | 62.93% |
| [US TREAS NTS 3.5% 02/15/33](https://search.stillhousedata.com/security/91282CGM7) | — | $155.1M | 58.88% |
| [US TREAS NTS 4.5% 11/15/33](https://search.stillhousedata.com/security/91282CJJ1) | — | $154.6M | 58.70% |
| [US TREAS NTS 4.25% 11/15/34](https://search.stillhousedata.com/security/91282CLW9) | — | $146.1M | 55.46% |
| [US TREAS BDS 1.125% 08/15/40](https://search.stillhousedata.com/security/912810SQ2) | — | $145.1M | 55.10% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $26.3B |
| 2025-12-31 | $25.1B |
| 2025-09-30 | $23.8B |
| 2025-06-30 | $21.6B |
| 2025-03-31 | $20.0B |
| 2024-12-31 | $18.0B |
| 2024-09-30 | $18.1B |
| 2024-06-30 | $17.0B |

## More

- [Registrant: Bridge Builder Trust](https://search.stillhousedata.com/registrant/1567101)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000040853.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.