William Blair International Growth R6 (WBIRX)

Fund Assets	1.04B
Expense Ratio	0.858%
Min. Investment	$1,000,000
Turnover	77.00%
Dividend (ttm)	0.43
Dividend Yield	1.49%
Dividend Growth	-5.56%
Payout Frequency	Annual
Ex-Dividend Date	Dec 18, 2025

Previous Close	29.46
YTD Return	8.51%
1-Year Return	10.88%
5-Year Return	9.36%
52-Week Low	26.19
52-Week High	32.51
Beta (5Y)	n/a
Holdings	181
Inception Date	May 1, 2019

About WBIRX

William Blair International Growth Fund Class R6 is an open-end mutual fund designed to seek long-term capital appreciation by investing primarily in international equities. The fund allocates at least 80% of its assets to a diversified portfolio of common stocks of companies located outside the United States, emphasizing large-cap growth opportunities within developed and emerging markets. Its portfolio construction is heavily weighted toward sectors such as industrials, technology, and financial services, with notable holdings including global leaders like Taiwan Semiconductor Manufacturing, Tencent Holdings, and SAP SE. Managed by Simon Fennell, the fund employs a growth-oriented investment style, aiming to identify firms with sustainable competitive advantages and strong earnings potential. With a net asset value of approximately $1.4 billion and an expense ratio around 0.94% to 1.00%, the Class R6 shares are tailored for institutional investors, featuring a minimum investment of $1 million. The fund’s geographic diversification and sector focus position it as a vehicle for investors seeking exposure to high-growth regions and industries outside the United States.

• Fund Family: William Blair
• Category: Foreign Large Growth
• Performance Rating: Average
• Risk Rating: Average
• Stock Exchange: Nasdaq
• Ticker Symbol: WBIRX
• Share Class: Class R6
• Index: MSCI ACWI EX US IMI NR

Performance

WBIRX had a total return of 10.88% in the past year, including dividends. Since the fund's inception, the average annual return has been 8.04%.

Other Share Classes

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

Symbol	Share Class	Expense Ratio
BIGIX	Class I	0.90%
WBIGX	Class N	1.15%

Top 10 Holdings

19.59% of assets

Name	Symbol	Weight
Taiwan Semiconductor Manufacturing Company Limited	TSM	4.75%
ASML Holding N.V.	ASML	2.54%
Samsung Electronics Co., Ltd.	005930	2.42%
SK hynix Inc.	000660	1.74%
Sumitomo Mitsui Financial Group, Inc.	8316	1.54%
Roche Holding AG	n/a	1.39%
Safran SA	SAF	1.33%
Tokio Marine Holdings, Inc.	8766	1.31%
UniCredit S.p.A.	UCG	1.31%
Banco Bilbao Vizcaya Argentaria, S.A.	BBVA	1.27%

Dividend History

Ex-Dividend	Amount	Pay Date
Dec 18, 2025	$0.43183	Dec 19, 2025
Dec 19, 2024	$2.0618	Dec 20, 2024
Dec 14, 2023	$1.02345	Dec 15, 2023
Dec 15, 2022	$2.03738	Dec 16, 2022
Dec 16, 2021	$4.41292	Dec 17, 2021
Dec 17, 2020	$0.46968	Dec 18, 2020

Data Sources: Tiingo, Twelve Data, and more

Historical data is provided by Tiingo. Delayed stock pricing data is provided by Twelve Data. Several fund data points are also provided by Finnhub.

Last checked:

Oct 16, 2026

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