Performance Comparison
Portfolio Performance Comparison
| Name | YTD Return | 1Yr AR | 3Yr AR | 5Yr AR | 10Yr AR | 15Yr AR | 20Yr AR | Common | Inception |
|---|---|---|---|---|---|---|---|---|---|
| WBIIX (WILLIAM BLAIR INSTITUTIONAL INTERNATIONAL GROWTH FUND INSTITUTIONAL CLASS) | 15.25% | 22.92% | 13.42% | -1.15% | 5.06% | 4.75% | 4.20% | … | … |
Data as of 06/04/2026, Common starting date is 08/29/2002
More Performance Analytics Comparison
| Name | Start Date | End Date |
|---|---|---|
| WBIIX (WILLIAM BLAIR INSTITUTIONAL INTERNATIONAL GROWTH FUND INSTITUTIONAL CLASS) | 08/29/2002 | 06/04/2026 |
| 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 | 2004 | 2003 | 2002 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Annualized Return (%) | 0.73 | 22.92 | 13.42 | -1.15 | 5.06 | 4.75 | 4.20 | … | … | 15.25 | 18.16 | 2.41 | 15.23 | -32.37 | -6.58 | 17.49 | 30.75 | -17.49 | 29.51 | -2.40 | 0.09 | -2.44 | 18.90 | 24.10 | -13.66 | 20.10 | 42.83 | -51.95 | 18.39 | 23.45 | 12.76 | 18.09 | 42.11 | -6.63 |
| Sharpe Ratio | NA | 1.43 | 0.74 | -0.20 | 0.19 | NA | NA | … | … | 2.01 | 0.99 | -0.10 | 0.97 | -1.34 | -0.29 | 0.53 | 2.82 | -1.27 | 3.78 | -0.16 | 0.00 | -0.23 | 1.68 | 1.69 | -0.58 | 1.05 | 1.55 | -1.28 | 0.77 | 1.31 | 0.77 | 1.15 | 3.42 | -1.30 |
| Standard Deviation(%) | NA | 14.99 | 14.52 | 18.52 | 18.53 | NA | NA | … | … | 19.69 | 15.57 | 12.18 | 12.01 | 25.32 | 22.43 | 32.44 | 10.39 | 14.88 | 7.66 | 16.21 | 13.76 | 10.74 | 11.23 | 14.38 | 23.80 | 19.03 | 27.51 | 41.18 | 19.98 | 15.35 | 13.58 | 14.88 | 12.11 | 14.97 |
| Draw Down(%) | NA | 13.17 | 17.06 | 49.50 | 49.50 | NA | NA | … | … | 13.17 | 15.74 | 9.48 | 15.19 | 36.78 | 24.22 | 32.76 | 6.70 | 25.63 | 3.75 | 13.86 | 15.95 | 11.24 | 11.24 | 13.40 | 23.91 | 14.81 | 23.03 | 61.27 | 14.83 | 18.97 | 8.70 | 15.24 | 11.02 | 13.90 |
| Yield(%) | 0.00 | 11.84 | 7.53 | 2.96 | 3.95 | 3.95 | 4.17 | … | … | 0.00 | 13.12 | 7.23 | 2.81 | 0.30 | 0.00 | 0.09 | 1.24 | 8.64 | 5.16 | 1.14 | 1.27 | 9.77 | 1.96 | 3.81 | 0.11 | 2.23 | 1.86 | 2.88 | 18.67 | 15.69 | 0.00 | 0.00 | 0.00 | 0.00 |
Data as of 06/04/2026, Common starting date is 08/29/2002
Performance Comparison Chart
Annualized Rolling Returns Comparison (Minimum)
| Ticker/Portfolio Name | 3 Year | 5 Year | 10 Year | 15 Year |
|---|---|---|---|---|
| WBIIX (WILLIAM BLAIR INSTITUTIONAL INTERNATIONAL GROWTH FUND INSTITUTIONAL CLASS) |
-17.42%
Feb 2006 – Feb 2009 |
-5.35%
Oct 2007 – Oct 2012 |
-0.02%
Oct 2013 – Oct 2023 |
-0.36%
Oct 2007 – Oct 2022 |
Annualized Rolling Returns Comparison (Maximum)
| Ticker/Portfolio Name | 3 Year | 5 Year | 10 Year | 15 Year |
|---|---|---|---|---|
| WBIIX (WILLIAM BLAIR INSTITUTIONAL INTERNATIONAL GROWTH FUND INSTITUTIONAL CLASS) |
30.20%
Mar 2003 – Mar 2006 |
24.79%
Oct 2002 – Oct 2007 |
11.20%
Feb 2009 – Feb 2019 |
9.58%
Jan 2003 – Jan 2018 |
Annualized Rolling Returns Comparison Chart