WILIX — William Blair International Leaders Fund
Data updated: 2026-08-14
WILIX — William Blair International Leaders Fund. Developed ex-US Mid Cap Growth Materials Equity · $1.19B AUM. Holdings, fees, performance and SEC filings.
WILIX Fund Overview
WILIX — William Blair International Leaders Fund is a US mutual fund managed by William Blair Funds, categorised as Developed ex-US Mid Cap Growth Materials 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: Developed ex-US Mid Cap Growth Materials Equity
- Assets under management: $1.19B
- 1-year return: 23.9%
- Ticker: WILIX
- SEC CIK: 0000822632
- SEC series ID: S000037763
- Share class ID: C000116469
WILIX Holdings
Top 10 holdings of William Blair International Leaders Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Taiwan Semiconductor Manufacturing Co Ltd | 4.69% |
| ASML Holding NV | 4.65% |
| Samsung Electronics Co Ltd | 3.79% |
| SK hynix Inc | 3.63% |
| Sumitomo Mitsui Financial Group Inc | 3.15% |
| Prysmian SpA | 2.54% |
| Banco Bilbao Vizcaya Argentaria SA | 2.51% |
| Fujikura Ltd | 2.46% |
| Safran SA | 2.39% |
| Hon Hai Precision Industry Co Ltd | 2.25% |
WILIX Portfolio Allocation
Asset-class allocation of William Blair International Leaders Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 97.5% |
| Cash & Equivalents | 0.7% |
WILIX Performance
Total returns for WILIX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 16.6% |
| 1 year | 23.9% |
| 3 years (annualised) | 13.1% |
| 5 years (annualised) | 3.7% |
WILIX Risk Information
Risk metrics for WILIX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 18.8%
WILIX Costs and Fees
WILIX costs about $90 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.90%
- Gross expense ratio: 1.03%
- Portfolio turnover: 91%
- Brokerage commissions: 9.86 bps of average net assets (SEC N-CEN)
WILIX Cashflows
Over the 12 months to 2026-06, William Blair International Leaders Fund had net outflows of $90.47M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$23.23M |
| 2026-05 | −$20.90M |
| 2026-04 | −$6.87M |
| 2026-03 | $1.01M |
| 2026-02 | −$39.94M |
| 2026-01 | −$9.01M |
WILIX Debt Constituents
No individual debt constituents are reported in William Blair International Leaders Fund's latest SEC N-PORT filing.
WILIX Prospectus and SEC Filings
Official William Blair International Leaders 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 Developed ex-US Mid Cap Growth Materials 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.