# William Blair Small-Mid Cap Core Fund

William Blair Small-Mid Cap Core Fund is a registered fund series of WILLIAM BLAIR FUNDS (series S000066499). Net assets $226.2M as of 2026-03-31.

## Profile

- Series ID: S000066499
- Registrant: WILLIAM BLAIR FUNDS
- LEI: 549300ECH5GG47ZL5S10
- Net assets: $226.2M
- Total assets: $226.3M
- As of: 2026-03-31

## Advisers

- [William Blair Investment Management, LLC (Advisor)](https://search.stillhousedata.com/firm/173961)

## Top holdings (88 reported)

_Showing 15 of 88 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [Diebold Nixdorf Inc](https://search.stillhousedata.com/security/253651202) | — | $4.9M | 217.48% |
| [Ciena Corp](https://search.stillhousedata.com/security/171779309) | — | $4.8M | 213.07% |
| Fixed Income Clearing Corp. | — | $4.6M | 205.28% |
| [F5 Inc](https://search.stillhousedata.com/security/315616102) | — | $4.5M | 199.28% |
| [Akamai Technologies Inc](https://search.stillhousedata.com/security/00971T101) | — | $4.3M | 188.56% |
| [IDACORP Inc](https://search.stillhousedata.com/security/451107106) | — | $4.2M | 185.59% |
| Everest Group Ltd | — | $4.2M | 184.31% |
| [Old National Bancorp/IN](https://search.stillhousedata.com/security/680033107) | — | $3.8M | 168.94% |
| [Primo Brands Corp](https://search.stillhousedata.com/security/741623102) | — | $3.6M | 161.16% |
| [Coherent Corp](https://search.stillhousedata.com/security/19247G107) | — | $3.6M | 160.30% |
| [Integer Holdings Corp](https://search.stillhousedata.com/security/45826H109) | — | $3.4M | 150.96% |
| [Jones Lang LaSalle Inc](https://search.stillhousedata.com/security/48020Q107) | — | $3.4M | 149.22% |
| [Carlyle Group Inc/The](https://search.stillhousedata.com/security/14316J108) | — | $3.4M | 148.39% |
| [Banner Corp](https://search.stillhousedata.com/security/06652V208) | — | $3.3M | 147.51% |
| [BorgWarner Inc](https://search.stillhousedata.com/security/099724106) | — | $3.3M | 145.79% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $226.2M |
| 2025-12-31 | $122.9M |
| 2025-09-30 | $144.0M |
| 2025-06-30 | $128.9M |
| 2025-03-31 | $114.8M |
| 2024-12-31 | $176.8M |
| 2024-09-30 | $186.5M |
| 2024-06-30 | $197.2M |

## More

- [Registrant: WILLIAM BLAIR FUNDS](https://search.stillhousedata.com/registrant/822632)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000066499.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.