William Blair Small Cap Growth R6 (WBSRX)

Fund Assets	1.12B
Expense Ratio	0.94%
Min. Investment	$1,000,000
Turnover	94.00%
Dividend (ttm)	n/a
Dividend Yield	n/a
Dividend Growth	n/a
Payout Frequency	Annual
Ex-Dividend Date	Dec 18, 2025

Previous Close	38.36
YTD Return	11.99%
1-Year Return	14.63%
5-Year Return	36.54%
52-Week Low	32.27
52-Week High	41.86
Beta (5Y)	n/a
Holdings	92
Inception Date	May 1, 2019

About WBSRX

William Blair Small Cap Growth Fund is a mutual fund focused on long-term capital appreciation by investing primarily in small-capitalization companies. The fund targets stocks of small companies with potential for sustained growth that exceeds market expectations. It emphasizes quality growth companies, often identifying opportunities where market inefficiencies exist due to short-term investor focus or limited analyst coverage. The fund invests across various sectors including industrials, healthcare, consumer cyclical, and technology, maintaining a diversified portfolio with top holdings reflecting this sector mix. It is known for its active management style, seeking to uncover companies with strong growth opportunities that may not be fully appreciated by the broader market. The fund’s strategy incorporates a disciplined approach to valuation and growth, focusing on companies with higher and more durable growth prospects. With total assets around $800 million and an expense ratio near 0.94%, it plays a significant role in providing exposure to the small-cap growth segment of the equity market and serves investors interested in long-term growth potential within smaller companies.

• Fund Family: William Blair
• Category: Small Growth
• Performance Rating: Above Average
• Risk Rating: Average
• Stock Exchange: Nasdaq
• Ticker Symbol: WBSRX
• Share Class: Class R6
• Index: Russell 2000 Growth TR

Performance

WBSRX had a total return of 14.63% in the past year, including dividends. Since the fund's inception, the average annual return has been 11.38%.

Equivalent Funds

These are funds that follow the same index from the other major fund companies.

Symbol	Provider	Name	Expense Ratio
VRTGX	Vanguard	Vanguard Russell 2000 Growth Index Fund Institutional Shares	0.07%

Other Share Classes

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

Symbol	Share Class	Expense Ratio
WBSIX	Class I	0.99%
WBSNX	Class N	1.24%

Top 10 Holdings

20.26% of assets

Name	Symbol	Weight
Fixed Inc Clearing Corp.Repo	n/a	4.38%
Merit Medical Systems, Inc.	MMSI	2.05%
Twist Bioscience Corporation	TWST	1.96%
Krystal Biotech, Inc.	KRYS	1.80%
Diebold Nixdorf, Incorporated	DBD	1.79%
Elastic N.V.	ESTC	1.69%
AppFolio, Inc.	APPF	1.68%
BorgWarner Inc.	BWA	1.66%
OSI Systems, Inc.	OSIS	1.63%
Primo Brands Corporation	PRMB	1.61%

Dividend History

Ex-Dividend	Amount	Pay Date
Dec 18, 2025	$2.5351	Dec 19, 2025
Dec 19, 2024	$3.55983	Dec 20, 2024
Dec 14, 2023	$0.49993	Dec 15, 2023
Dec 15, 2022	$1.01206	Dec 16, 2022
Dec 16, 2021	$6.69889	Dec 17, 2021
Dec 17, 2020	$3.83162	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 10, 2026

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