WILIX vs. WXCIX

Last updated Jul 14, 2026

WILIX (William Blair International Leaders Fund) and WXCIX (William Blair Emerging Markets ex China Growth Fund Class I) are both mutual funds - WILIX is a Foreign Large Cap Equities fund managed by William Blair, while WXCIX is a Emerging Markets Equities fund actively managed by William Blair. Over the past 3 years, WILIX returned 12.91%/yr vs 32.67%/yr for WXCIX. A 0.70 correlation means they provide meaningful diversification when combined. WILIX charges 0.90%/yr vs 0.99%/yr for WXCIX.

Performance

WILIX vs. WXCIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in William Blair International Leaders Fund (WILIX) and William Blair Emerging Markets ex China Growth Fund Class I (WXCIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WILIX achieves a 13.77% return, which is significantly lower than WXCIX's 46.00% return.

WILIX

• 1D: -0.12%
• 1M: 0.20%
• 6M: 9.13%
• YTD: 13.77%
• 1Y: 22.00%
• 3Y*: 12.91%
• 5Y*: 3.01%
• 10Y*: 9.06%

WXCIX

• 1D: 1.61%
• 1M: -0.30%
• 6M: 39.21%
• YTD: 46.00%
• 1Y: 73.29%
• 3Y*: 32.67%
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

WILIX vs. WXCIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
WILIX William Blair International Leaders Fund	13.77%	23.21%	-0.50%	3.20%
WXCIX William Blair Emerging Markets ex China Growth Fund Class I	46.00%	28.21%	13.49%	15.55%

Correlation

The correlation between WILIX and WXCIX is 0.83, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.83
Correlation (3Y) Calculated over the trailing 3-year period	0.71
Correlation (All Time) Calculated using the full available price history since May 17, 2023	0.70

The correlation between WILIX and WXCIX shifts across timeframes, from 0.70 (all time) to 0.83 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

WILIX vs. WXCIX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

WILIX

WILIX Risk / Return Rank: 31
WILIX Sharpe Ratio Rank: 31
WILIX Sortino Ratio Rank: 29
WILIX Omega Ratio Rank: 34
WILIX Calmar Ratio Rank: 30
WILIX Martin Ratio Rank: 32

WXCIX

WXCIX Risk / Return Rank: 92
WXCIX Sharpe Ratio Rank: 95
WXCIX Sortino Ratio Rank: 86
WXCIX Omega Ratio Rank: 87
WXCIX Calmar Ratio Rank: 96
WXCIX Martin Ratio Rank: 94

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

WILIX vs. WXCIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for William Blair International Leaders Fund (WILIX) and William Blair Emerging Markets ex China Growth Fund Class I (WXCIX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	WILIX	WXCIX	Difference
Sharpe ratio: Return per unit of total volatility	1.19	2.74	-1.55
Sortino ratio: Return per unit of downside risk	1.67	3.34	-1.67
Omega ratio: Gain probability vs. loss probability	1.23	1.48	-0.24
Calmar ratio: Return relative to maximum drawdown	1.58	4.90	-3.33
Martin ratio: Return relative to average drawdown	5.67	16.05	-10.37

WILIX vs. WXCIX - Sharpe Ratio Comparison

The current WILIX Sharpe Ratio is 1.19, which is lower than the WXCIX Sharpe Ratio of 2.74. The chart below compares the historical Sharpe Ratios of WILIX and WXCIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

WILIX vs. WXCIX - Drawdown Comparison

The maximum WILIX drawdown since its inception was -41.01%, which is greater than WXCIX's maximum drawdown of -19.66%. Use the drawdown chart below to compare losses from any high point for WILIX and WXCIX.

Drawdown Indicators

	WILIX	WXCIX	Difference
Max Drawdown Largest peak-to-trough decline	-41.01%	-19.66%	-21.35%
Max Drawdown (1Y) Largest decline over 1 year	-13.67%	-14.78%	+1.11%
Max Drawdown (3Y) Largest decline over 3 years	-18.21%	-19.66%	+1.45%
Max Drawdown (5Y) Largest decline over 5 years	-41.01%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-41.01%	—	—
Current Drawdown Current decline from peak	-4.23%	-8.54%	+4.31%
Average Drawdown Average peak-to-trough decline	-9.72%	-3.20%	-6.52%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.78%	4.50%	-0.72%

Volatility

WILIX vs. WXCIX - Volatility Comparison

The current volatility for William Blair International Leaders Fund (WILIX) is 7.50%, while William Blair Emerging Markets ex China Growth Fund Class I (WXCIX) has a volatility of 12.33%. This indicates that WILIX experiences smaller price fluctuations and is considered to be less risky than WXCIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WILIX	WXCIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.50%	12.33%	-4.83%
Volatility (6M) Calculated over the trailing 6-month period	15.80%	23.89%	-8.09%
Volatility (1Y) Calculated over the trailing 1-year period	18.10%	26.41%	-8.31%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.18%	19.44%	-1.26%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.66%	19.44%	-1.78%

WILIX vs. WXCIX - Expense Ratio Comparison

WILIX has a 0.90% expense ratio, which is lower than WXCIX's 0.99% expense ratio.

Dividends

WILIX vs. WXCIX - Dividend Comparison

WILIX's dividend yield for the trailing twelve months is around 7.02%, more than WXCIX's 3.78% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
WILIX William Blair International Leaders Fund	7.02%	7.98%	0.58%	0.45%	0.19%	2.82%	0.80%	0.56%	4.14%	2.17%	1.01%	0.74%
WXCIX William Blair Emerging Markets ex China Growth Fund Class I	3.78%	5.52%	0.00%	0.83%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both WILIX and WXCIX in my portfolio?

WILIX and WXCIX have a correlation of 0.83, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WILIX or WXCIX?

WXCIX has higher volatility (12.33%) compared to WILIX (7.50%). In terms of maximum drawdown, WILIX dropped -41.01% vs WXCIX's -19.66%.

Which has better risk-adjusted returns?

WXCIX currently has the higher Sharpe Ratio (2.74 vs 1.19), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.