# Fidelity Summer Street Trust

Fidelity Summer Street Trust (CIK 225322) is an SEC-registered fund company with 28 reporting fund series and $33.8B in net assets as of 2026-05-31.

## Registrant

- CIK: 225322
- File number: 811-02737
- LEI: P1TJ3M056NR1SYX5LY49
- Address: 245 Summer Street, Boston, US-MA, 02210
- Phone: 1-800-FIDELITY
- Net assets: $33.8B
- Total assets: $35.0B
- Fund series: 28
- Latest report: 2026-05-31

## Fund series (28)

_Showing 25 of 28 series._

| Series | Net assets |
| --- | --- |
| [Fidelity Capital and Income Fund](https://search.stillhousedata.com/fund/S000007495) | $15.6B |
| [Fidelity New Markets Income Fund](https://search.stillhousedata.com/fund/S000017692) | $3.7B |
| [Fidelity High Income Fund](https://search.stillhousedata.com/fund/S000017690) | $3.0B |
| [Fidelity SAI Real Estate Fund](https://search.stillhousedata.com/fund/S000085735) | $2.7B |
| [Fidelity SAI High Income Fund](https://search.stillhousedata.com/fund/S000071838) | $2.6B |
| [Fidelity Series High Income Fund](https://search.stillhousedata.com/fund/S000031534) | $1.6B |
| [Fidelity Export and Multinational Fund](https://search.stillhousedata.com/fund/S000017691) | $1.1B |
| [Fidelity SAI Sustainable Sector Fund](https://search.stillhousedata.com/fund/S000075898) | $811.0M |
| [Fidelity SAI Sustainable U.S. Equity Fund](https://search.stillhousedata.com/fund/S000075899) | $573.5M |
| [Fidelity Short Duration High Income Fund](https://search.stillhousedata.com/fund/S000042758) | $331.8M |
| [Fidelity Series Floating Rate High Income Fund](https://search.stillhousedata.com/fund/S000031533) | $272.7M |
| [Fidelity Focused High Income Fund](https://search.stillhousedata.com/fund/S000017689) | $197.5M |
| [Fidelity Women's Leadership Fund](https://search.stillhousedata.com/fund/S000065255) | $170.5M |
| [Fidelity Water Sustainability Fund](https://search.stillhousedata.com/fund/S000067937) | $160.5M |
| [Fidelity Disruptive Automation Fund](https://search.stillhousedata.com/fund/S000067931) | $111.2M |
| [Fidelity SAI Sustainable Future Fund](https://search.stillhousedata.com/fund/S000075897) | $101.6M |
| [Fidelity Disruptive Technology Fund](https://search.stillhousedata.com/fund/S000067935) | $101.2M |
| [Fidelity Disruptors Fund](https://search.stillhousedata.com/fund/S000067936) | $95.5M |
| [Fidelity Global High Income Fund](https://search.stillhousedata.com/fund/S000032505) | $71.6M |
| [Fidelity Series Sustainable U.S. Market Fund](https://search.stillhousedata.com/fund/S000080314) | $61.7M |
| [Fidelity Climate Action Fund](https://search.stillhousedata.com/fund/S000072128) | $58.0M |
| [Fidelity Agricultural Productivity Fund](https://search.stillhousedata.com/fund/S000067930) | $47.2M |
| [Fidelity Disruptive Medicine Fund](https://search.stillhousedata.com/fund/S000067934) | $43.2M |
| [Fidelity Disruptive Finance Fund](https://search.stillhousedata.com/fund/S000067933) | $40.9M |
| [Fidelity Disruptive Communications Fund](https://search.stillhousedata.com/fund/S000067932) | $38.0M |

## Largest reported holdings (across all series)

| Holding | Value |
| --- | --- |
| [NVIDIA CORP](https://search.stillhousedata.com/security/67066G104) | $2.7M |
| [APPLE INC](https://search.stillhousedata.com/security/037833100) | $2.4M |
| [ALPHABET INC](https://search.stillhousedata.com/security/02079K305) | $2.1M |
| [MICROSOFT CORP](https://search.stillhousedata.com/security/594918104) | $1.7M |
| [AMAZON.COM INC](https://search.stillhousedata.com/security/023135106) | $1.7M |
| [Fidelity Revere Street Trust](https://search.stillhousedata.com/security/31635A105) | $1.2M |
| [MICRON TECHNOLOGY INC](https://search.stillhousedata.com/security/595112103) | $1.0M |
| [ELI LILLY and CO](https://search.stillhousedata.com/security/532457108) | $771K |
| [JPMORGAN CHASE and CO](https://search.stillhousedata.com/security/46625H100) | $661K |
| [LAM RESEARCH CORP](https://search.stillhousedata.com/security/512807306) | $518K |
| [COCA COLA CO](https://search.stillhousedata.com/security/191216100) | $471K |
| [GE VERNOVA INC](https://search.stillhousedata.com/security/36828A101) | $442K |
| [MASTERCARD INC](https://search.stillhousedata.com/security/57636Q104) | $440K |
| [DELL TECHNOLOGIES INC](https://search.stillhousedata.com/security/24703L202) | $434K |
| [KLA CORP](https://search.stillhousedata.com/security/482480100) | $429K |

## More

- [CIK 225322 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=225322&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/registrant/225322.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.