# Fidelity Mid Cap Index Fund

Fidelity Mid Cap Index Fund is a registered fund series of Fidelity Salem Street Trust (series S000033637). Net assets $50.0B as of 2026-04-30. Index fund.

## Profile

- Series ID: S000033637
- Registrant: Fidelity Salem Street Trust
- LEI: 54930043ME2GUEUOUR49
- Net assets: $50.0B
- Total assets: $51.1B
- As of: 2026-04-30
- Type: Index

## Advisers

- [Fidelity Management & Research Company LLC (Advisor)](https://search.stillhousedata.com/firm/108281)
- [Geode Capital Management, LLC (Subadvisor)](https://search.stillhousedata.com/firm/115504)

## 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) | — | $1.1B | 210.79% |
| [SANDISK CORP/DE](https://search.stillhousedata.com/security/80004C200) | — | $580.9M | 116.09% |
| [WESTERN DIGITAL CORP](https://search.stillhousedata.com/security/958102105) | — | $547.6M | 109.43% |
| [CORNING INC](https://search.stillhousedata.com/security/219350105) | — | $475.0M | 94.92% |
| [VERTIV HOLDINGS CO](https://search.stillhousedata.com/security/92537N108) | — | $462.9M | 92.51% |
| [QUANTA SVCS INC](https://search.stillhousedata.com/security/74762E102) | — | $397.0M | 79.34% |
| [HOWMET AEROSPACE INC](https://search.stillhousedata.com/security/443201108) | — | $361.0M | 72.14% |
| [BANK NEW YORK MELLON CORP](https://search.stillhousedata.com/security/064058100) | — | $342.8M | 68.49% |
| [CUMMINS INC](https://search.stillhousedata.com/security/231021106) | — | $342.1M | 68.36% |
| [VALERO ENERGY CORP](https://search.stillhousedata.com/security/91913Y100) | — | $284.4M | 56.83% |
| [MONOLITHIC POWER SYSTEMS INC](https://search.stillhousedata.com/security/609839105) | — | $276.8M | 55.31% |
| [MARATHON PETROLEUM CORP](https://search.stillhousedata.com/security/56585A102) | — | $276.6M | 55.27% |
| [CIENA CORP](https://search.stillhousedata.com/security/171779309) | — | $275.7M | 55.09% |
| [HILTON WORLDWIDE HOLDINGS INC](https://search.stillhousedata.com/security/43300A203) | — | $273.8M | 54.71% |
| [ROSS STORES INC](https://search.stillhousedata.com/security/778296103) | — | $268.9M | 53.73% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-04-30 | $50.0B |
| 2026-01-31 | $46.9B |
| 2025-10-31 | $45.0B |
| 2025-07-31 | $43.4B |
| 2025-04-30 | $37.7B |
| 2025-01-31 | $38.6B |
| 2024-10-31 | $36.3B |
| 2024-07-31 | $35.9B |

## More

- [Registrant: Fidelity Salem Street Trust](https://search.stillhousedata.com/registrant/35315)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000033637.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.