Performance Comparison
Portfolio Performance Comparison
| Name | YTD Return | 1Yr AR | 3Yr AR | 5Yr AR | 10Yr AR | 15Yr AR | 20Yr AR | Common | Inception |
|---|---|---|---|---|---|---|---|---|---|
| WIISX (WILLIAM BLAIR INTERNATIONAL SMALL CAP GROWTH FUND INSTITUTIONAL CLASS) | 8.69% | 8.43% | 9.73% | -3.21% | 3.93% | 4.42% | 4.53% | … | … |
Data as of 06/05/2026, Common starting date is 12/14/2005
More Performance Analytics Comparison
| Name | Start Date | End Date |
|---|---|---|
| WIISX (WILLIAM BLAIR INTERNATIONAL SMALL CAP GROWTH FUND INSTITUTIONAL CLASS) | 12/14/2005 | 06/05/2026 |
| Last 1 Week | 1 Yr | 3 Yr | 5 Yr | 10 Yr | 15 Yr | 20 Yr | Common | Inception | YTD | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Annualized Return (%) | -5.29 | 8.43 | 9.73 | -3.21 | 3.93 | 4.42 | 4.53 | … | … | 8.69 | 14.82 | 0.86 | 14.78 | -34.94 | -4.48 | 26.58 | 34.31 | -24.16 | 32.71 | -4.31 | 10.03 | -7.60 | 26.49 | 21.37 | -11.60 | 26.40 | 57.84 | -51.52 | 13.53 | 20.86 | 2.86 |
| Sharpe Ratio | NA | 0.41 | 0.45 | -0.30 | 0.13 | NA | NA | … | … | 1.05 | 0.84 | -0.46 | 0.79 | -1.40 | -0.20 | 0.86 | 3.22 | -1.82 | 4.38 | -0.28 | 0.77 | -0.71 | 2.66 | 1.66 | -0.51 | 1.53 | 2.36 | -1.46 | 0.55 | 1.07 | 10.96 |
| Standard Deviation(%) | NA | 14.13 | 14.23 | 18.78 | 18.26 | NA | NA | … | … | 18.07 | 14.45 | 12.50 | 13.41 | 26.11 | 22.71 | 30.45 | 10.23 | 14.06 | 7.37 | 15.95 | 12.93 | 10.76 | 9.95 | 12.92 | 22.84 | 17.15 | 24.43 | 35.80 | 19.17 | 16.57 | 8.03 |
| Draw Down(%) | NA | 10.09 | 17.87 | 55.11 | 55.11 | NA | NA | … | … | 10.09 | 13.28 | 8.55 | 17.87 | 43.52 | 25.44 | 37.50 | 7.27 | 31.34 | 3.20 | 13.19 | 9.91 | 14.53 | 7.72 | 12.49 | 23.22 | 14.65 | 19.85 | 58.62 | 15.64 | 19.96 | 0.55 |
| Yield(%) | 0.00 | 0.65 | 1.21 | 0.56 | 2.69 | 3.65 | 3.68 | … | … | 0.00 | 0.75 | 1.85 | 1.06 | 0.20 | 0.34 | 0.17 | 0.49 | 9.32 | 12.02 | 0.43 | 2.56 | 13.94 | 6.62 | 2.79 | 1.42 | 0.64 | 0.43 | 0.83 | 8.55 | 0.50 | 0.00 |
Data as of 06/05/2026, Common starting date is 12/14/2005
Performance Comparison Chart
Annualized Rolling Returns Comparison (Minimum)
| Ticker/Portfolio Name | 3 Year | 5 Year | 10 Year | 15 Year |
|---|---|---|---|---|
| WIISX (WILLIAM BLAIR INTERNATIONAL SMALL CAP GROWTH FUND INSTITUTIONAL CLASS) |
-18.54%
Feb 2006 – Feb 2009 |
-5.96%
Sep 2017 – Sep 2022 |
-0.09%
Oct 2013 – Oct 2023 |
0.75%
Oct 2007 – Oct 2022 |
Annualized Rolling Returns Comparison (Maximum)
| Ticker/Portfolio Name | 3 Year | 5 Year | 10 Year | 15 Year |
|---|---|---|---|---|
| WIISX (WILLIAM BLAIR INTERNATIONAL SMALL CAP GROWTH FUND INSTITUTIONAL CLASS) |
30.98%
Feb 2009 – Feb 2012 |
26.01%
Feb 2009 – Feb 2014 |
12.91%
Feb 2009 – Feb 2019 |
8.92%
Feb 2009 – Feb 2024 |
Annualized Rolling Returns Comparison Chart