William Blair International Growth Fund Class I (BIGIX)

NASDAQ · Mutual Fund · Delayed Price · Currency is USD

29.83

-0.03 (-0.10%)

At close: Sep 18, 2026

Fund Assets	1.11B
Expense Ratio	0.90%
Min. Investment	$500,000
Turnover	77.00%
Dividend (ttm)	0.41
Dividend Yield	1.39%
Dividend Growth	-79.73%
Payout Frequency	Annual
Ex-Dividend Date	Dec 18, 2025

Previous Close	29.86
YTD Return	9.99%
1-Year Return	12.26%
5-Year Return	4.50%
52-Week Low	26.16
52-Week High	32.46
Beta (5Y)	0.91
Holdings	184
Inception Date	Oct 1, 1999

About BIGIX

William Blair International Growth Fund Class I is an actively managed mutual fund focused on long-term capital appreciation by investing primarily in the equity securities of companies located outside the United States. The fund seeks to identify firms exhibiting superior growth potential, strong profitability, and high quality standards, spanning all market capitalizations. Typically, at least 80% of its assets are allocated to a diversified portfolio of international stocks, with geographical exposure spread across at least six different countries to enhance diversification and reduce country-specific risk. The fund maintains structural exposure to both emerging markets and developed economies, and often overweights sectors such as financial services and industrials. It employs a disciplined investment approach that blends deep fundamental research with systematic analysis to uncover attractive growth opportunities. With a relatively high minimum initial investment, the fund is tailored for institutional and sophisticated investors aiming for exposure to international large-cap growth equities. Managed since 1999, William Blair International Growth Fund Class I plays a significant role for investors seeking to diversify beyond U.S. markets, offering a broad, research-driven gateway to global growth trends.

Fund Family William Blair

Category Foreign Large Growth

Performance Rating Average

Risk Rating Average

Stock Exchange NASDAQ

Ticker Symbol BIGIX

Share Class Class I

Index MSCI ACWI EX US IMI NR

Performance

BIGIX had a total return of 12.26% in the past year, including dividends. Since the fund's inception, the average annual return has been 7.09%.

Other Share Classes

These are alternative share classes of the same fund, from the same provider.

Symbol	Share Class	Expense Ratio
WBIRX	Class R6	0.85%
WBIGX	Class N	1.15%

Top 10 Holdings

19.46% of assets

Name	Symbol	Weight
Taiwan Semiconductor Manufacturing Company Limited	TSM	4.71%
ASML Holding N.V.	ASML	2.53%
Samsung Electronics Co., Ltd.	005930	2.26%
SK hynix Inc.	000660	1.65%
Sumitomo Mitsui Financial Group, Inc.	8316	1.55%
Roche Holding AG	n/a	1.42%
Tokio Marine Holdings, Inc.	8766	1.41%
Safran SA	SAF	1.36%
HSBC Holdings plc	HSBA	1.29%
UniCredit S.p.A.	UCG	1.29%

View More Holdings

Dividend History

Ex-Dividend	Amount	Pay Date
Dec 18, 2025	$0.41484	Dec 19, 2025
Dec 19, 2024	$2.04666	Dec 20, 2024
Dec 14, 2023	$1.0094	Dec 15, 2023
Dec 15, 2022	$2.01914	Dec 16, 2022
Dec 16, 2021	$4.41292	Dec 17, 2021
Dec 17, 2020	$0.44106	Dec 18, 2020

Full Dividend History