# iShares Core S&P Mid-Cap ETF

iShares Core S&P Mid-Cap ETF is a ETF series of iShares Trust (series S000004307). Net assets $106.0B as of 2026-03-31. Index fund.

## Profile

- Series ID: S000004307
- Registrant: iShares Trust
- LEI: 549300ODQWH5PC0IUZ78
- Net assets: $106.0B
- Total assets: $110.0B
- As of: 2026-03-31
- Type: ETF, Index

## Advisers

- [BlackRock Fund Advisors (Advisor)](https://search.stillhousedata.com/firm/105247)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| BLACKROCK GLOBAL | — | $3.9B | 368.37% |
| TechnipFMC PLC | — | $925.9M | 87.31% |
| [Casey'S General Stores Inc.](https://search.stillhousedata.com/security/147528103) | — | $893.3M | 84.23% |
| [United Therapeutics Corporation](https://search.stillhousedata.com/security/91307C102) | — | $845.3M | 79.71% |
| [Curtiss-Wright Corp.](https://search.stillhousedata.com/security/231561101) | — | $831.4M | 78.40% |
| FLEX LTD | — | $796.9M | 75.14% |
| [XPO Inc](https://search.stillhousedata.com/security/983793100) | — | $754.6M | 71.15% |
| [Woodward Inc.](https://search.stillhousedata.com/security/980745103) | — | $706.5M | 66.62% |
| [Royal Gold, Inc.](https://search.stillhousedata.com/security/780287108) | — | $682.7M | 64.37% |
| [US Foods Holding Corp](https://search.stillhousedata.com/security/912008109) | — | $673.3M | 63.49% |
| [Burlington Stores Inc.](https://search.stillhousedata.com/security/122017106) | — | $669.9M | 63.17% |
| [ATI Inc](https://search.stillhousedata.com/security/01741R102) | — | $654.3M | 61.70% |
| [Mastec, Inc.](https://search.stillhousedata.com/security/576323109) | — | $653.4M | 61.61% |
| [Carpenter Technology Corporation](https://search.stillhousedata.com/security/144285103) | — | $650.0M | 61.29% |
| NVent Electric PLC | — | $631.9M | 59.59% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $106.0B |
| 2025-12-31 | $102.4B |
| 2025-09-30 | $99.8B |
| 2025-06-30 | $94.9B |
| 2025-03-31 | $89.4B |
| 2024-12-31 | $94.7B |
| 2024-09-30 | $91.0B |
| 2024-06-30 | $83.1B |

## More

- [Registrant: iShares Trust](https://search.stillhousedata.com/registrant/1100663)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000004307.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.