# Fidelity Series High Income Fund

Fidelity Series High Income Fund is a registered fund series of Fidelity Summer Street Trust (series S000031534). Net assets $1.6B as of 2026-04-30.

## Profile

- Series ID: S000031534
- Registrant: Fidelity Summer Street Trust
- LEI: 549300450GN21I8PVQ30
- Net assets: $1.6B
- Total assets: $1.8B
- As of: 2026-04-30
- Type: Fund of funds

## Advisers

- [FMR Investment Management (UK) Limited (Subadvisor)](https://search.stillhousedata.com/firm/108273)
- [Fidelity Management & Research Company LLC (Advisor)](https://search.stillhousedata.com/firm/108281)
- [Fidelity Management & Research (Hong Kong) Limited (Subadvisor)](https://search.stillhousedata.com/firm/148045)
- [Fidelity Management & Research (Japan) Limited (Subadvisor)](https://search.stillhousedata.com/firm/148239)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [Fidelity Revere Street Trust](https://search.stillhousedata.com/security/31635A303) | — | $137.8M | 867.26% |
| [Fidelity Revere Street Trust](https://search.stillhousedata.com/security/31635A105) | — | $64.9M | 408.48% |
| [Fidelity Private Credit Central Fund LLC](https://search.stillhousedata.com/security/316129105) | — | $20.4M | 128.40% |
| 1261229 BC LTD | — | $8.7M | 55.00% |
| [1261229 BC LTD](https://search.stillhousedata.com/security/68288AAA5) | — | $8.0M | 50.44% |
| [ARTERA SERVICES LLC](https://search.stillhousedata.com/security/04302XAA2) | — | $8.0M | 50.10% |
| [APLD COMPUTECO LLC](https://search.stillhousedata.com/security/00202DAA5) | — | $7.8M | 49.00% |
| [PR RNO PROPERTY OWNER 1 LLC](https://search.stillhousedata.com/security/69393LAA1) | — | $7.7M | 48.15% |
| [CLOUD SOFTWARE GROUP INC](https://search.stillhousedata.com/security/18912UAA0) | — | $7.2M | 45.32% |
| NEW FORTRESS ENERGY INC | — | $7.0M | 44.21% |
| [TRANSDIGM INC](https://search.stillhousedata.com/security/893647BU0) | — | $6.9M | 43.64% |
| [MEDLINE BORROWER LP](https://search.stillhousedata.com/security/62482BAA0) | — | $6.8M | 42.52% |
| [EG GLOBAL FINANCE PLC](https://search.stillhousedata.com/security/28228PAC5) | — | $6.3M | 39.60% |
| [STRATEGY INC](https://search.stillhousedata.com/security/594972AS0) | — | $6.2M | 38.89% |
| [1011778 B C UNLIMITED LIABILITY CO / NEW RED FIN INC](https://search.stillhousedata.com/security/68245XAM1) | — | $5.9M | 37.12% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-04-30 | $1.6B |
| 2026-01-31 | $1.6B |
| 2025-10-31 | $1.5B |
| 2025-07-31 | $1.4B |
| 2025-04-30 | $1.4B |
| 2025-01-31 | $1.4B |
| 2024-10-31 | $1.5B |
| 2024-07-31 | $1.4B |

## More

- [Registrant: Fidelity Summer Street Trust](https://search.stillhousedata.com/registrant/225322)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000031534.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.