WSMRX — William Blair Small-Mid Cap Growth Fund
Data updated: 2026-08-14
WSMRX — William Blair Small-Mid Cap Growth Fund. United States Mid Cap Growth Equity · $1.32B AUM. Holdings, fees, performance and SEC filings.
WSMRX Fund Overview
WSMRX — William Blair Small-Mid Cap Growth Fund is a US mutual fund managed by William Blair Funds, categorised as United States Mid Cap Growth Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: William Blair Funds
- Category: United States Mid Cap Growth Equity
- Assets under management: $1.32B
- 1-year return: 24.2%
- Ticker: WSMRX
- SEC CIK: 0000822632
- SEC series ID: S000008603
- Share class ID: C000211721
WSMRX Holdings
Top 10 holdings of William Blair Small-Mid Cap Growth Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Everpure Inc | 2.57% |
| F5 Inc | 2.46% |
| Onto Innovation Inc | 2.25% |
| Sterling Infrastructure Inc | 2.20% |
| Primo Brands Corp | 2.19% |
| Lattice Semiconductor Corp | 2.08% |
| nVent Electric PLC | 2.04% |
| Carpenter Technology Corp | 2.03% |
| Guardant Health Inc | 1.99% |
| Talen Energy Corp | 1.93% |
WSMRX Portfolio Allocation
Asset-class allocation of William Blair Small-Mid Cap Growth Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 98.5% |
| Cash & Equivalents | 1.6% |
WSMRX Performance
Total returns for WSMRX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 15.5% |
| 1 year | 24.2% |
| 3 years (annualised) | 11.0% |
| 5 years (annualised) | 3.4% |
WSMRX Risk Information
Risk metrics for WSMRX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 11.9%
WSMRX Costs and Fees
WSMRX costs about $94 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.94%
- Gross expense ratio: 0.99%
- Portfolio turnover: 57%
- Brokerage commissions: 4.39 bps of average net assets (SEC N-CEN)
WSMRX Cashflows
Over the 12 months to 2026-06, William Blair Small-Mid Cap Growth Fund had net outflows of $373.10M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | $29.35M |
| 2026-05 | −$21.19M |
| 2026-04 | −$17.23M |
| 2026-03 | −$8.01M |
| 2026-02 | −$57.77M |
| 2026-01 | −$41.11M |
WSMRX Debt Constituents
No individual debt constituents are reported in William Blair Small-Mid Cap Growth Fund's latest SEC N-PORT filing.
WSMRX Prospectus and SEC Filings
Official William Blair Small-Mid Cap Growth Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-04-29
- Prospectus (485BPOS) — filed 2025-04-30
- Prospectus (485BPOS) — filed 2024-04-29
- Portfolio holdings (N-PORT) — filed 2026-08-14
- Portfolio holdings (N-PORT) — filed 2026-05-28
- Portfolio holdings (N-PORT) — filed 2026-02-18
- Annual census (N-CEN) — filed 2026-03-12
- Annual census (N-CEN) — filed 2025-03-12
Related Funds
Other United States Mid Cap Growth Equity funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.