# Thornburg Ultra Short Income Fund

Thornburg Ultra Short Income Fund is a registered fund series of THORNBURG INVESTMENT TRUST (series S000043670). Net assets $265.7M as of 2026-03-31.

## Profile

- Series ID: S000043670
- Registrant: THORNBURG INVESTMENT TRUST
- LEI: 5493008QZFA48DAOHN91
- Net assets: $265.7M
- Total assets: $270.0M
- As of: 2026-03-31

## Advisers

- [Thornburg Investment Management, Inc. (Advisor)](https://search.stillhousedata.com/firm/106357)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [Thornburg Capital Management Fund](https://search.stillhousedata.com/security/885216739) | — | $12.2M | 460.90% |
| [United States Treasury](https://search.stillhousedata.com/security/912797TS6) | — | $5.0M | 187.29% |
| [United States Treasury](https://search.stillhousedata.com/security/91282CMH1) | — | $3.0M | 113.27% |
| [United States Treasury](https://search.stillhousedata.com/security/91282CFB2) | — | $3.0M | 111.35% |
| [CDW LLC/CDW FINANCE](https://search.stillhousedata.com/security/12513GBG3) | — | $2.5M | 94.86% |
| [United States Treasury](https://search.stillhousedata.com/security/91282CMF5) | — | $2.5M | 94.77% |
| [ENERGY TRANSFER LP](https://search.stillhousedata.com/security/86765BAT6) | — | $2.5M | 93.99% |
| [Crown Castle Inc](https://search.stillhousedata.com/security/22823QDE8) | — | $2.5M | 93.96% |
| [Mariner Finance Issuance Trust](https://search.stillhousedata.com/security/56848DAA7) | — | $2.5M | 93.48% |
| [ALCON FINANCE CORP](https://search.stillhousedata.com/security/01400EAA1) | — | $2.5M | 93.37% |
| [CRH America Finance Inc](https://search.stillhousedata.com/security/12636DF86) | — | $2.5M | 93.36% |
| [Bell Telephone Co of Canada or Bell Canada/The](https://search.stillhousedata.com/security/07787QFA9) | — | $2.5M | 93.36% |
| [HIGHMARK INC](https://search.stillhousedata.com/security/431116AD4) | — | $2.4M | 90.49% |
| [PENSKE TRUCK LEASING/PTL](https://search.stillhousedata.com/security/709599BU7) | — | $2.4M | 88.53% |
| [KEYSPAN GAS EAST CORP](https://search.stillhousedata.com/security/49338CAB9) | — | $2.2M | 84.20% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $265.7M |
| 2025-12-31 | $252.8M |
| 2025-09-30 | $266.4M |
| 2025-06-30 | $266.7M |
| 2025-03-31 | $251.3M |
| 2024-12-31 | $256.9M |
| 2024-09-30 | $263.7M |
| 2024-06-30 | $256.7M |

## More

- [Registrant: THORNBURG INVESTMENT TRUST](https://search.stillhousedata.com/registrant/816153)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000043670.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.