WISIX

International Small Cap Growth Fund

Share Class

Daily NAV (USD)

$13.90

As of 11/13/2025

Why Consider This Fund?

Approach
  • Invests in an international small-cap portfolio of approximately 100 to 150 stocks diversified across region, industry, and corporate lifecycle
  • Seeks to identify undiscovered small-cap companies with strong management and unique capabilities by leveraging dedicated small-cap analysts
  • Combines deep fundamental research with systematic inputs to seek to consistently identify alpha opportunities

Fund Facts

OTHER VEHICLES:

Fund FactsAs of 10/31/2025
Total Net Assets ($Million)$132
Number of Holdings131
Inception Date11/01/2005
Expense Ratio (Gross)1.26%
Expense Ratio (Net)1.10%
Ticker SymbolWISIX
CUSIP093001188
BenchmarkMSCI All Country World ex-U.S. Small Cap Index (net)
Morningstar CategoryForeign Small/Mid Growth

The Fund's Adviser has contractually agreed to waive fees and/or reimburse expenses to limit fund operating expenses until 4/30/26.

Performance

AS OF DATE:|
International Small Cap Growth Fund
MSCI All Country World ex-U.S. Small Cap Index (net)
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RETURN:As of 10/31/2025
AVERAGE ANNUAL RETURNS: As of 10/31/2025
FundInceptionMonthYTD1-YR3-YR5-YR10-YRSince Inception
International Small Cap Growth Fund Class I11/01/2005-2.29%14.67%14.94%12.57%2.90%4.97%5.97%
MSCI All Country World ex-U.S. Small Cap Index (net)-0.21%25.81%22.58%18.18%10.61%7.77%6.91%

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Returns shown assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate with market and economic conditions and you may have a gain or loss when you sell shares. Class N shares are available to the general public without a sales load. Class I and Class R6 shares are available only to investors who meet certain eligibility requirements.

The benchmark shown represents the Funds performance benchmark, which is different from the Funds regulatory benchmark. The Fund’s regulatory benchmark is the MSCI All Country World ex-US IMI Index and is included in the Funds prospectus.

Ratings and Rankings

As of: 09/30/2025
Morningstar Category: Foreign Small/Mid Growth

Overall

109 Funds in Category

3-YR

109 Funds in Category

5-YR

96 Funds in Category

10-YR

76 Funds in Category

As of: 09/30/2025
Lipper Category: International Small/Mid-Cap Growth

1-YR

Rank: 77

134 Funds in Category

3-YR

Rank: 72

128 Funds in Category

5-YR

Rank: 95

119 Funds in Category

10-YR

Rank: 77

97 Funds in Category

Portfolio Characteristics

As of 10/31/2025

Portfolio Composition
Wgtd Avg Market Cap ($Billion)$3.43
Median Market Cap ($Billion)$2.62
P/E Ratio (Next 12 Months)19.8
EPS Growth (Long-Term)16.9%
Trailing 1-Year Turnover67.0%
Cash0.9%
Standard Deviation (10 Year)
  • Fund
18.67%
  • Index
16.18%
Top 10 Holdings% of Fund
Azimut Holding S.P.A.1.7%
Rakuten Bank, Ltd.1.5%
Obic Business Consultants Co., Ltd.1.5%
Bizlink Holding Inc.1.4%
JTC PLC1.4%
Dassault Aviation1.4%
Bufab AB1.4%
Beazley plc1.3%
SOL S.P.A.1.3%
Kardex Holding AG1.3%
Total14.2%

Portfolio Allocations

As of: 10/31/2025
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Range% of Fund
> $20.0B0.0%
$5.0B - $20.0B22.7%
< $5.0B77.3%
Total100.0%
As of: 10/31/2025
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Sector% of Fund% Benchmark
Industrials25.9%20.6%
Financials21.2%11.8%
Information Technology18.8%11.8%
Consumer Discretionary9.9%11.3%
Communication Services7.1%3.8%
Health Care6.9%6.9%
Consumer Staples5.8%5.2%
Materials2.6%12.5%
Real Estate0.8%9.3%
Utilities0.6%3.1%
Energy0.4%3.7%
Exchange-Traded Funds0.0%0.0%
Total100.0%
As of: 10/31/2025
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Geographic% of Fund
Asia Ex-Japan4.0%
Japan16.9%
Europe Ex-U.K., Middle East35.6%
United Kingdom9.1%
Western Hemisphere4.0%
Emerging Markets Totals30.4%
    Asia18.5%
    Europe, Mid-East, Africa5.2%
    Latin America6.7%
Total100.0%

Management

Simon Fennell
Simon Fennell, Partner

Portfolio Manager

Tenure with William Blair:Since

2011
View Bio
Andrew Siepker
Andrew Siepker, CFA, Partner

Portfolio Manager

Tenure with William Blair:Since

2006
View Bio

Fund Literature

Fund Literature
Class I Fact Sheet
Quarterly Review
Commentary
Holdings
Fund Profile
Why Non-U.S. Equities Now?
5 Forces Fueling the Energy Transition
Prospectus and Reports
Prospectus
Annual Report
Semi-Annual Report

Contact Us

Our active ownership culture creates long-term client relationships by aligning with your interests and helping you achieve successful investment outcomes. Contact us to learn how we can partner with you.

Contact Us

Contact Us

Our active ownership culture creates long-term client relationships by aligning with your interests and helping you achieve successful investment outcomes. Contact us to learn how we can partner with you.
Contact Us

Contact Us

Our active ownership culture creates long-term client relationships by aligning with your interests and helping you achieve successful investment outcomes. Contact us to learn how we can partner with you.
Contact Us

Please carefully consider the William Blair Funds’ investment objectives, risks, charges, and expenses before investing. This and other information is contained in the Funds’ prospectus and summary prospectus, which you may obtain by calling 1-800-742-7272. Read the prospectus and summary prospectus carefully before investing. Investing includes the risk of loss.

The William Blair Funds are distributed by William Blair & Company, L.L.C., member FINRA/SIPC.

Risks: The Fund’s returns will vary, and you could lose money by investing in the Fund. The Fund holds equities which may decline in value due to both real and perceived general market, economic, and industry conditions. International investing involves special risk considerations, including currency fluctuations, lower liquidity, economic and political risk. Investing in emerging markets can increase these risks, including higher volatility and lower liquidity. Investing in smaller companies involves special risks, including higher volatility and lower liquidity. Convertible securities may be called before intended, which may have an adverse effect on investment objectives. Diversification does not ensure against loss.

For most recent net asset values and year-to-date total return information, please click here.

Top ten holdings are shown as % of total net assets. Sector and market-cap diversification exclude cash equivalents.  Information about the Fund’s holdings should not be considered investment advice. There is no guarantee that the Fund will continue to hold any one particular security or stay invested in any one particular sector. Holdings are subject to change at any time.

The Morgan Stanley Capital International (MSCI) All Country Ex-U.S. Small Cap Index (net) is a free float-adjusted market capitalization weighted index that is designed to measure the equity market performance of small capitalization developed and emerging markets, excluding the United States. This series approximates the minimum possible dividend reinvestment. The Index is unmanaged, does not incur fees or expenses, and cannot be invested in directly.

The Morningstar Foreign Small/Mid Growth Category represents the average annual composite performance of all mutual funds listed in the Foreign Small/Mid Growth Category by Morningstar.

The Morningstar Rating for funds, or "star rating", is calculated for managed products (including mutual funds, variable annuity and variable life subaccounts, exchange-traded funds, closed-end funds, and separate accounts) with at least a three-year history. Exchange- traded funds and open-ended mutual funds are considered a single population for comparative purposes. It is calculated based on a Morningstar Risk-Adjusted Return measure that accounts for variation in a managed products monthly excess performance, placing more emphasis on downward variations and rewarding consistent performance. The top 10% of products in each product category receive 5 stars, the next 22.5% receive 4 stars, the next 35% receive 3 stars, the next 22.5% receive 2 stars, and the bottom 10% receive 1 star. The Overall Morningstar Rating for a managed product is derived from a weighted average of the performance figures associated with its three-, five-, and 10-year (if applicable) Morningstar Rating metrics. The weights are: 100% three-year rating for 36-59 months of total returns, 60% five-year rating/40% three-year rating for 60-119 months of total returns, and 50% 10-year rating/30% five-year rating/20% three-year rating for 120 or more months of total returns. While the 10 year overall star rating formula seems to give the most weight to the 10-year period, the most recent three-year period actually has the greatest impact because it is included in all three rating periods.
 
©2025 Morningstar, Inc. All rights reserved.

Lipper Ratings are based on a Funds average annual total return.

Ratings and rankings are one measure of performance. Ratings may vary among share classes. Ratings reflect expense limitations in effect during the period, without such limitations returns would be lower. Past performance does not guarantee future results.

For your reference, this link contains additional notices and disclaimers required by our data suppliers.

Weighted Average Market Capitalization: Market capitalization refers to the total market value of each companys outstanding shares. The Weighted Average Market Capitalization for a portfolio is calculated as the average market capitalization of the stocks within the portfolio, weighted by the amount of each stock owned. Unweighted Median Market Capitalization: This calculation represents the median market capitalization of the stocks in the portfolio, regardless of the amount of each stock owned. P/E (Price/Earnings) Ratio: This ratio is a measure of valuation. It relates the price of the stock to the earnings per share (EPS) of the company. A stock with a higher P/E ratio would be considered more expensive relative to another stock with a lower P/E. An investor may pay a higher P/E for a stock for several reasons including, but not limited to, an expectation that the company possesses higher returns on invested capital, less economic sensitivity, higher consistency of earnings and/or higher earnings growth potential. EPS (Earnings Per Share) Growth Rate (Projected): This measure represents the weighted average of forecasted growth in earnings expected to be experienced by the stocks within the portfolio over the next 3-5 years. From a portfolio perspective, the portfolio P/E ratio and EPS Growth Rate are weighted averages of the individual holdings’ P/E ratios and EPS Growth Rates. Trailing 1-Year Turnover: This figure reflects the portfolio’s trading activity by calculating the amount of the portfolio’s holdings bought or sold over the prior year, expressed as a percentage of the portfolio’s average market value. Turnover figures may be related to the amount of trading costs experienced by the portfolio. Standard Deviation: A measure of the portfolio’s risk. A higher standard deviation represents a greater dispersion of returns, and thus, a greater amount of risk. Standard deviation returns shown are annualized and calculated using monthly returns. Funds without a 10-year history are reported against the Fund’s inception date. If the Fund’s inception date does not fall on the first day of a given month, the annualized standard deviation is calculated based on the first day of the month following the Fund’s inception date.

Any investment or strategy mentioned herein may not be appropriate for every investor. There can be no assurance that investment objectives will be met. Products and services listed are available only to residents of this jurisdiction and may only be available to certain categories of investors. The information on this website does not constitute an offer for products or services, or a solicitation of an offer to any persons outside of this jurisdiction who are prohibited from receiving such information under applicable laws and regulations. Nothing on this webpage should be construed as advice and is therefore not a recommendation to buy or sell shares.

William Blair Investment Management, LLC is an investment adviser registered with the U.S. Securities and Exchange Commission.