# Calvert Bond Fund

Calvert Bond Fund is a registered fund series of Calvert Social Investment Fund (series S000008718). Net assets $4.2B as of 2026-03-31.

## Profile

- Series ID: S000008718
- Registrant: Calvert Social Investment Fund
- LEI: 549300T75TF7NTCFI791
- Net assets: $4.2B
- Total assets: $4.7B
- As of: 2026-03-31

## Advisers

- [Calvert Research and Management (Advisor)](https://search.stillhousedata.com/firm/285127)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [Morgan Stanley & Co. LLC](https://search.stillhousedata.com/security/61747C707) | — | $476.6M | 1124.79% |
| [UMBS, TBA](https://search.stillhousedata.com/security/01F050643) | — | $355.2M | 838.26% |
| [United States Treasury](https://search.stillhousedata.com/security/912810TM0) | — | $172.7M | 407.66% |
| [United States Treasury](https://search.stillhousedata.com/security/91282CPN5) | — | $164.4M | 388.08% |
| [United States Treasury](https://search.stillhousedata.com/security/91282CDL2) | — | $155.6M | 367.31% |
| [United States Treasury](https://search.stillhousedata.com/security/91282CNC1) | — | $99.7M | 235.30% |
| [United States Treasury](https://search.stillhousedata.com/security/912810SF6) | — | $79.6M | 187.80% |
| [Freddie Mac](https://search.stillhousedata.com/security/3132DWNJ8) | — | $65.6M | 154.93% |
| [United States Treasury](https://search.stillhousedata.com/security/912810UQ9) | — | $63.2M | 149.09% |
| [United States Treasury](https://search.stillhousedata.com/security/91282CKT7) | — | $51.5M | 121.56% |
| [EUROPEAN INVESTMENT BANK](https://search.stillhousedata.com/security/298785JT4) | — | $43.6M | 102.98% |
| [UMBS, TBA](https://search.stillhousedata.com/security/01F042640) | — | $39.3M | 92.81% |
| [Freddie Mac](https://search.stillhousedata.com/security/3132DWMX8) | — | $38.2M | 90.11% |
| [United States Treasury](https://search.stillhousedata.com/security/912810UE6) | — | $37.2M | 87.89% |
| [Fannie Mae](https://search.stillhousedata.com/security/31418FED5) | — | $36.3M | 85.74% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $4.2B |
| 2025-12-31 | $4.2B |
| 2025-09-30 | $4.1B |
| 2025-06-30 | $3.8B |
| 2025-03-31 | $4.0B |
| 2024-12-31 | $3.7B |
| 2024-09-30 | $3.6B |
| 2024-06-30 | $3.2B |

## More

- [Registrant: Calvert Social Investment Fund](https://search.stillhousedata.com/registrant/356682)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000008718.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.