# SIMT Core Fixed Income Fund

SIMT Core Fixed Income Fund is a registered fund series of SEI INSTITUTIONAL MANAGED TRUST (series S000006667). Net assets $3.6B as of 2026-03-31.

## Profile

- Series ID: S000006667
- Registrant: SEI INSTITUTIONAL MANAGED TRUST
- LEI: FPNUFBNI42IT0696WN30
- Net assets: $3.6B
- Total assets: $4.0B
- As of: 2026-03-31

## Advisers

- [METROPOLITAN WEST Asset Management LLC (Subadvisor)](https://search.stillhousedata.com/firm/104571)
- [ALLSPRING GLOBAL INVESTMENTS, LLC (Subadvisor)](https://search.stillhousedata.com/firm/104973)
- [SEI INVESTMENT MANAGEMENT Corporation (Advisor)](https://search.stillhousedata.com/firm/105146)
- [Jennison Associates LLC (Subadvisor)](https://search.stillhousedata.com/firm/107959)
- [WESTERN ASSET MANAGEMENT Company Limited (Subadvisor)](https://search.stillhousedata.com/firm/110427)
- [WESTERN ASSET MANAGEMENT Company (Subadvisor)](https://search.stillhousedata.com/firm/110441)
- [MetLife Investment Management, LLC (Subadvisor)](https://search.stillhousedata.com/firm/142463)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| US 2YR NOTE (CBT) JUN26 | 1TUM26 | $172.2M | 477.27% |
| US 2YR NOTE (CBT) JUN26 | 1TUM26 | $146.0M | 404.82% |
| US 2YR NOTE (CBT) JUN26 | 1TUM26 | $74.7M | 207.01% |
| United States of America | FVM26 | $74.2M | 205.71% |
| [United States of America](https://search.stillhousedata.com/security/91282CQD6) | — | $69.3M | 192.04% |
| [SEI DAILY INCOME TRUST GOVERNMENT FUND (#36)](https://search.stillhousedata.com/security/783965593) | — | $65.5M | 181.51% |
| [United States of America](https://search.stillhousedata.com/security/91282CQG9) | — | $57.9M | 160.51% |
| United States of America | FVM26 | $51.1M | 141.54% |
| [Federal National Mortgage Association](https://search.stillhousedata.com/security/01F032641) | — | $48.1M | 133.33% |
| [United States of America](https://search.stillhousedata.com/security/912810UR7) | — | $47.9M | 132.74% |
| [United States of America](https://search.stillhousedata.com/security/912797SP3) | — | $47.5M | 131.75% |
| [SEI DAILY INCOME TRUST GOVERNMENT FUND (#36)](https://search.stillhousedata.com/security/783965593) | — | $47.2M | 130.91% |
| [United States of America](https://search.stillhousedata.com/security/91282CPZ8) | — | $39.5M | 109.36% |
| [SEI DAILY INCOME TRUST GOVERNMENT FUND (#36)](https://search.stillhousedata.com/security/783965593) | — | $34.3M | 95.15% |
| [United States of America](https://search.stillhousedata.com/security/91282CQF1) | — | $33.1M | 91.77% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $3.6B |
| 2025-12-31 | $3.5B |
| 2025-09-30 | $3.5B |
| 2025-06-30 | $3.4B |
| 2025-03-31 | $3.5B |
| 2024-12-31 | $3.4B |
| 2024-09-30 | $3.6B |
| 2024-06-30 | $3.6B |

## More

- [Registrant: SEI INSTITUTIONAL MANAGED TRUST](https://search.stillhousedata.com/registrant/804239)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000006667.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.