WBIIX vs. WBGSX
Compare and contrast key facts about William Blair Institutional International Growth Fund (WBIIX) and William Blair Growth Fund (WBGSX).
WBIIX is managed by William Blair. It was launched on Jul 25, 2002. WBGSX is managed by William Blair. It was launched on Mar 20, 1946.
Performance
WBIIX vs. WBGSX - Performance Comparison
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WBIIX vs. WBGSX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
WBIIX William Blair Institutional International Growth Fund | -0.70% | 18.16% | 2.40% | 15.23% | -28.39% | 9.30% | 32.69% | 30.75% | -17.49% | 29.51% |
WBGSX William Blair Growth Fund | -11.49% | 10.69% | 85.99% | 37.75% | -29.75% | 21.71% | 36.12% | 32.11% | 4.88% | 24.19% |
Returns By Period
In the year-to-date period, WBIIX achieves a -0.70% return, which is significantly higher than WBGSX's -11.49% return. Over the past 10 years, WBIIX has underperformed WBGSX with an annualized return of 7.41%, while WBGSX has yielded a comparatively higher 17.73% annualized return.
WBIIX
- 1D
- 2.96%
- 1M
- -8.77%
- YTD
- -0.70%
- 6M
- 0.99%
- 1Y
- 16.74%
- 3Y*
- 8.49%
- 5Y*
- 1.41%
- 10Y*
- 7.41%
WBGSX
- 1D
- 3.31%
- 1M
- -6.02%
- YTD
- -11.49%
- 6M
- -11.86%
- 1Y
- 10.97%
- 3Y*
- 30.64%
- 5Y*
- 15.07%
- 10Y*
- 17.73%
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WBIIX vs. WBGSX - Expense Ratio Comparison
WBIIX has a 0.98% expense ratio, which is lower than WBGSX's 1.20% expense ratio.
Return for Risk
WBIIX vs. WBGSX — Risk / Return Rank
WBIIX
WBGSX
WBIIX vs. WBGSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for William Blair Institutional International Growth Fund (WBIIX) and William Blair Growth Fund (WBGSX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| WBIIX | WBGSX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.04 | 0.53 | +0.51 |
Sortino ratioReturn per unit of downside risk | 1.47 | 0.93 | +0.54 |
Omega ratioGain probability vs. loss probability | 1.22 | 1.13 | +0.10 |
Calmar ratioReturn relative to maximum drawdown | 1.20 | 0.46 | +0.74 |
Martin ratioReturn relative to average drawdown | 4.69 | 1.41 | +3.28 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| WBIIX | WBGSX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.04 | 0.53 | +0.51 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.09 | 0.47 | -0.39 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.44 | 0.67 | -0.24 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.41 | 0.50 | -0.09 |
Correlation
The correlation between WBIIX and WBGSX is 0.68, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.
Dividends
WBIIX vs. WBGSX - Dividend Comparison
WBIIX's dividend yield for the trailing twelve months is around 12.61%, less than WBGSX's 49.67% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
WBIIX William Blair Institutional International Growth Fund | 12.61% | 12.53% | 7.49% | 2.51% | 6.57% | 16.58% | 12.61% | 0.95% | 11.74% | 4.16% | 1.15% | 1.28% |
WBGSX William Blair Growth Fund | 49.67% | 43.96% | 69.07% | 12.73% | 4.59% | 14.82% | 15.07% | 10.27% | 38.86% | 38.00% | 8.81% | 13.92% |
Drawdowns
WBIIX vs. WBGSX - Drawdown Comparison
The maximum WBIIX drawdown since its inception was -65.13%, which is greater than WBGSX's maximum drawdown of -53.05%. Use the drawdown chart below to compare losses from any high point for WBIIX and WBGSX.
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Drawdown Indicators
| WBIIX | WBGSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -65.13% | -53.05% | -12.08% |
Max Drawdown (1Y)Largest decline over 1 year | -13.17% | -19.70% | +6.53% |
Max Drawdown (5Y)Largest decline over 5 years | -40.91% | -36.90% | -4.01% |
Max Drawdown (10Y)Largest decline over 10 years | -40.91% | -36.90% | -4.01% |
Current DrawdownCurrent decline from peak | -10.60% | -17.04% | +6.44% |
Average DrawdownAverage peak-to-trough decline | -14.89% | -11.53% | -3.36% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.37% | 6.39% | -3.02% |
Volatility
WBIIX vs. WBGSX - Volatility Comparison
William Blair Institutional International Growth Fund (WBIIX) has a higher volatility of 7.79% compared to William Blair Growth Fund (WBGSX) at 6.57%. This indicates that WBIIX's price experiences larger fluctuations and is considered to be riskier than WBGSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| WBIIX | WBGSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.79% | 6.57% | +1.22% |
Volatility (6M)Calculated over the trailing 6-month period | 11.73% | 13.00% | -1.27% |
Volatility (1Y)Calculated over the trailing 1-year period | 16.69% | 22.79% | -6.10% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.54% | 31.96% | -15.42% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 17.05% | 26.44% | -9.39% |