- ISIN
- US0930013521
- Issuer
- William Blair
- Inception Date
- Jul 25, 2002
- Category
- Foreign Large Cap Equities
- Min. Investment
- $500,000
- Distribution Policy
- Distributing
- Asset Class
- Equity
- Asset Class Size
- Large-Cap
- Asset Class Style
- Growth
Share Price Chart
Loading charts...
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Performance
WBIIX Performance Chart
William Blair Institutional International Growth Fund (WBIIX) is up 14.9% since the beginning of the year. WBIIX is currently trading at $17 per share. Investors who bought $1,000 worth of WBIIX shares 5 years ago would now be looking at an investment worth $1,162.
Loading charts...
Returns By Period
William Blair Institutional International Growth Fund (WBIIX) has returned 14.90% so far this year and 23.12% over the past 12 months. Over the last ten years, WBIIX has returned 8.63% per year, falling short of the S&P 500 Index benchmark, which averaged 13.75% annually.
William Blair Institutional International Growth Fund
- 1D
- -0.48%
- 1M
- 5.97%
- YTD
- 14.90%
- 6M
- 17.75%
- 1Y
- 23.12%
- 3Y*
- 13.33%
- 5Y*
- 3.04%
- 10Y*
- 8.63%
Benchmark (S&P 500 Index)
- 1D
- 0.13%
- 1M
- 5.25%
- YTD
- 11.16%
- 6M
- 11.43%
- 1Y
- 28.20%
- 3Y*
- 21.12%
- 5Y*
- 12.66%
- 10Y*
- 13.75%
WBIIX Monthly Returns History
Based on dividend-adjusted daily data since Jul 29, 2002, WBIIX's average daily return is +0.04%, while the average monthly return is +0.78%. At this rate, an investment would double in approximately 7.4 years.
Historically, 63% of months were positive and 38% were negative. The best month was May 2009 with a return of +15.2%, while the worst month was Oct 2008 at -25.9%. The longest winning streak lasted 12 consecutive months, and the longest losing streak was 6 months.
On a daily basis, WBIIX closed higher 53% of trading days. The best single day was Oct 13, 2008 with a return of +11.8%, while the worst single day was Mar 16, 2020 at -11.4%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 5.71% | 4.74% | -10.31% | 9.54% | 6.15% | -0.48% | 14.90% | ||||||
| 2025 | 3.43% | -0.63% | -2.62% | 4.08% | 5.39% | 3.05% | -2.13% | 1.38% | 3.18% | 1.70% | -2.17% | 2.54% | 18.16% |
| 2024 | -0.76% | 4.69% | 2.54% | -5.48% | 3.66% | 0.20% | 1.86% | 2.48% | 0.25% | -4.31% | 0.07% | -2.28% | 2.40% |
| 2023 | 7.88% | -2.96% | 3.58% | 0.94% | -1.57% | 3.33% | 0.98% | -4.58% | -5.53% | -3.85% | 11.21% | 6.35% | 15.23% |
| 2022 | -11.40% | -4.39% | -0.50% | -9.16% | -1.24% | -8.27% | 8.94% | -6.12% | -10.22% | 6.52% | 10.30% | -4.31% | -28.39% |
| 2021 | 0.15% | -0.00% | -1.32% | 6.26% | 2.43% | 0.87% | 1.67% | 3.65% | -5.67% | 3.87% | -3.94% | 1.57% | 9.30% |
Benchmark Metrics
William Blair Institutional International Growth Fund has an annualized alpha of 1.08%, beta of 0.79, and R2 of 0.65 versus S&P 500 Index. Calculated based on daily prices since July 30, 2002.
- This fund participated in 101.57% of S&P 500 Index downside but only 96.21% of its upside - more exposed to losses than it benefited from rallies.
- Alpha
- 1.08%
- Beta
- 0.79
- R²
- 0.65
- Upside Capture
- 96.21%
- Downside Capture
- 101.57%
Expense Ratio
WBIIX has a high expense ratio of 0.98%, indicating above-average management fees.
Return for Risk
Risk / Return Rank
WBIIX ranks 29 for risk / return — below 29% of mutual funds on our site. The returns aren't fully compensating for the risk involved. This isn't necessarily a dealbreaker, but factor it into your decision — especially if you're risk-averse.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for William Blair Institutional International Growth Fund (WBIIX) and compare them to S&P 500 Index.
| WBIIX | Benchmark | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.59 | 2.39 | -0.80 |
Sortino ratioReturn per unit of downside risk | 2.23 | 3.25 | -1.03 |
Omega ratioGain probability vs. loss probability | 1.31 | 1.43 | -0.12 |
Calmar ratioReturn relative to maximum drawdown | 1.81 | 3.11 | -1.31 |
Martin ratioReturn relative to average drawdown | 6.82 | 14.38 | -7.56 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Dividends
Dividend History
William Blair Institutional International Growth Fund provided a 10.90% dividend yield over the last twelve months, with an annual payout of $1.80 per share. The fund has been increasing its distributions for 2 consecutive years.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dividend | $1.80 | $1.80 | $1.03 | $0.36 | $0.84 | $3.15 | $2.57 | $0.17 | $1.57 | $0.75 | $0.17 | $0.19 |
Dividend yield | 10.90% | 12.53% | 7.49% | 2.51% | 6.57% | 16.58% | 12.61% | 0.95% | 11.74% | 4.16% | 1.15% | 1.28% |
Monthly Dividends
The table displays the monthly dividend distributions for William Blair Institutional International Growth Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | ||||||
| 2025 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $1.80 | $1.80 |
| 2024 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $1.03 | $1.03 |
| 2023 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.36 | $0.36 |
| 2022 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.84 | $0.84 |
| 2021 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $3.15 | $3.15 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
Loading charts...
Worst Drawdowns
The table below displays the maximum drawdowns of the William Blair Institutional International Growth Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the William Blair Institutional International Growth Fund was 65.13%, occurring on Mar 9, 2009. Recovery took 1520 trading sessions.
The current William Blair Institutional International Growth Fund drawdown is 0.48%.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
Financial crisis2007–2009 | -65.13%Mar 2009 | 1y 4mo | 6y 15d | 7y 4moNov 2007 - Mar 2015 |
Bear market2022 | -40.91%Sep 2022 | 1y 19d | 3y 4mo | 4y 4moSep 2021 - Jan 2026 |
COVID crash2020 | -32.76%Mar 2020 | 2mo | 3mo 15d | 5mo 15dJan 2020 - Jul 2020 |
Rate-hike selloffLate 2018 | -25.63%Dec 2018 | 10mo 29d | 12mo 4d | 1y 10moJan 2018 - Dec 2019 |
2016 bear market2016 | -22.56%Feb 2016 | 8mo 26d | 1y 3mo | 1y 12moMay 2015 - May 2017 |
Drawdown Indicators
| WBIIX | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -65.13% | -56.78% | -8.35% |
Max Drawdown (1Y)Largest decline over 1 year | -13.17% | -9.10% | -4.07% |
Max Drawdown (3Y)Largest decline over 3 years | -17.06% | -18.90% | +1.84% |
Max Drawdown (5Y)Largest decline over 5 years | -40.91% | -25.43% | -15.48% |
Max Drawdown (10Y)Largest decline over 10 years | -40.91% | -33.92% | -6.99% |
Current DrawdownCurrent decline from peak | -0.48% | 0.00% | -0.48% |
Average DrawdownAverage peak-to-trough decline | -14.80% | -10.72% | -4.08% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.48% | 1.97% | +1.51% |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
Loading charts...
Build a portfolio with WBIIX
Add William Blair Institutional International Growth Fund to a portfolio and analyze allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Analyzer with WBIIX