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As of 3/31/2014

Standardized Returns

  Month YTD 1 Yr. 3 Yrs. 5 Yrs. 10 Yrs.
Small Cap Growth Fund -0.78% 1.40% 33.33% 15.64% 25.23% 8.18%
Russell 2000® Growth Index -2.46% 0.48% 27.19% 13.61% 25.24% 8.87%
Morningstar Small Growth Category -2.04% 0.32% 26.05% 12.59% 24.46% 8.71%
Morningstar Quartile Ranking in Category----1123
Fund's Ranking / # of Funds in Peer Group----67 / 71186 / 633203 / 555258 / 373
Morningstar Rating------
Expense Ratio (Gross): 1.59%
Expense Ratio (Capped): 1.50%

Calendar Year Total Returns

  2013 2012 2011 2010 2009 2008 2007 2006 2005
Small Cap Growth Fund 52.76% 18.15% -13.31% 16.16% 69.55% -46.85% -2.15% 14.12% 1.18%
Russell 2000® Growth Index 43.30% 14.59% -2.91% 29.09% 34.47% -38.54% 7.05% 13.35% 4.15%


The Fund’s Adviser has contractually agreed to waive fees and/or reimburse expenses to limit fund operating expenses until 4/30/14.

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

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. For the most current month-end performance information, please call +1 800 742 7272, or visit our Web site at www.williamblairfunds.com. Class N shares are available to the general public without a sales load. Class I shares are available only to investors who meet certain eligibility requirements.

The Russell 2000® Growth Index consists of small-capitalization companies with above average price-to-book ratios and forecasted growth rates. The Index is unmanaged, does not incur fees or expenses, and cannot be invested in directly.


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

Morningstar Ratings™ are as of 3/31/2014 and are subject to change every month. The ratings are based on a risk-adjusted return measure that accounts for variation in a fund's monthly performance, placing more emphasis on downward variations and rewarding consistent performance. The top 10% of funds in each Category receive 5 stars, the next 22.5% receive 4 stars, the middle 35% receive 3 stars, the next 22.5% receive 2 stars, and the bottom 10% receive 1 star. The Overall Morningstar Rating for a fund is derived from a weighted average of the performance figures associated with its three-, five-, and ten-year (if applicable) Morningstar Rating metrics.

Morningstar Quartile Rankings are based on Morningstar Percentile Ranking in Morningstar Category, where 1% - 25% = first quartile(1); 26% - 50% = second quartile(2); 51% - 75% = third quartile(3); and 76% - 100% = fourth quartile(4). The Morningstar Percentile Ranking compares a Fund's Morningstar risk and return scores with all the Funds in the same Category, where 1% = Best and 100% = Worst.

Morningstar Ranking / # of Funds in Category displays the fund's actual rank within its Morningstar Category based on average annual total return and number of Funds in that Category.

©2014 Morningstar, Inc. All rights reserved. The information contained herein: (1) is proprietary to Morningstar and/or its content providers; (2) may not be copied or distributed; and (3) is not warranted to be accurate, complete or timely. Neither Morningstar nor its content providers are responsible for any damages or losses arising from any use of this information.