# Fidelity Advisor Mid Cap II Fund

Fidelity Advisor Mid Cap II Fund is a registered fund series of Fidelity Advisor Series I (series S000017686). Net assets $1.7B as of 2026-03-31.

## Profile

- Series ID: S000017686
- Registrant: Fidelity Advisor Series I
- LEI: 4ODQK2BVYBVBBTGM0G02
- Net assets: $1.7B
- Total assets: $1.7B
- As of: 2026-03-31

## 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 (172 reported)

_Showing 15 of 172 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [Fidelity Revere Street Trust](https://search.stillhousedata.com/security/31635A303) | — | $48.2M | 289.41% |
| [Fidelity Revere Street Trust](https://search.stillhousedata.com/security/31635A105) | — | $40.8M | 244.92% |
| [LUMENTUM HOLDINGS INC](https://search.stillhousedata.com/security/55024U109) | — | $30.9M | 185.17% |
| [ATI INC](https://search.stillhousedata.com/security/01741R102) | — | $28.2M | 169.11% |
| [WESTERN DIGITAL CORP](https://search.stillhousedata.com/security/958102105) | — | $27.1M | 162.84% |
| [ITT INC](https://search.stillhousedata.com/security/45073V108) | — | $26.9M | 161.54% |
| [COHERENT CORP](https://search.stillhousedata.com/security/19247G107) | — | $25.6M | 153.70% |
| [US FOODS HOLDING CORP](https://search.stillhousedata.com/security/912008109) | — | $25.3M | 151.92% |
| [EMCOR GROUP INC](https://search.stillhousedata.com/security/29084Q100) | — | $23.8M | 142.69% |
| [EAST WEST BANCORP INC](https://search.stillhousedata.com/security/27579R104) | — | $23.1M | 138.46% |
| [COMFORT SYSTEMS USA INC](https://search.stillhousedata.com/security/199908104) | — | $22.9M | 137.39% |
| [MKS INC](https://search.stillhousedata.com/security/55306N104) | — | $22.4M | 134.21% |
| [REINSURANCE GROUP OF AMERICA INC](https://search.stillhousedata.com/security/759351604) | — | $21.5M | 129.14% |
| [ELANCO ANIMAL HEALTH INC](https://search.stillhousedata.com/security/28414H103) | — | $21.0M | 126.13% |
| [SOMNIGROUP INTERNATIONAL INC](https://search.stillhousedata.com/security/88023U101) | — | $20.9M | 125.60% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $1.7B |
| 2025-12-31 | $1.6B |
| 2025-09-30 | $1.6B |
| 2025-06-30 | $1.5B |
| 2025-03-31 | $1.4B |
| 2024-12-31 | $1.6B |
| 2024-09-30 | $1.6B |
| 2024-06-30 | $1.5B |

## More

- [Registrant: Fidelity Advisor Series I](https://search.stillhousedata.com/registrant/722574)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000017686.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.