WEDIX vs. WBCIX

Last updated Apr 1, 2026

Compare and contrast key facts about William Blair Emerging Markets Debt Fund (WEDIX) and William Blair Small-Mid Cap Core Fund (WBCIX).

WEDIX is managed by William Blair. It was launched on May 24, 2021. WBCIX is managed by William Blair. It was launched on Oct 1, 2019.

Performance

WEDIX vs. WBCIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in William Blair Emerging Markets Debt Fund (WEDIX) and William Blair Small-Mid Cap Core Fund (WBCIX). The values are adjusted to include any dividend payments, if applicable.

WEDIX vs. WBCIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
WEDIX William Blair Emerging Markets Debt Fund	-1.16%	16.13%	9.09%	12.18%	-18.02%	-1.05%
WBCIX William Blair Small-Mid Cap Core Fund	-4.33%	1.29%	12.04%	13.26%	-17.11%	10.20%

Returns By Period

In the year-to-date period, WEDIX achieves a -1.16% return, which is significantly higher than WBCIX's -4.33% return.

WEDIX

• 1D: -0.12%
• 1M: -4.46%
• YTD: -1.16%
• 6M: 2.76%
• 1Y: 11.80%
• 3Y*: 11.30%
• 5Y*: —
• 10Y*: —

WBCIX

• 1D: -0.50%
• 1M: -8.36%
• YTD: -4.33%
• 6M: -3.89%
• 1Y: 5.12%
• 3Y*: 6.02%
• 5Y*: 2.74%
• 10Y*: —

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

WEDIX vs. WBCIX - Expense Ratio Comparison

WEDIX has a 0.70% expense ratio, which is lower than WBCIX's 1.25% expense ratio.

WBCIX

William Blair Small-Mid Cap Core Fund

WEDIX

William Blair Emerging Markets Debt Fund

Return for Risk

WEDIX vs. WBCIX — Risk / Return Rank

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

WEDIX

WEDIX Risk / Return Rank: 93
WEDIX Sharpe Ratio Rank: 95
WEDIX Sortino Ratio Rank: 95
WEDIX Omega Ratio Rank: 93
WEDIX Calmar Ratio Rank: 91
WEDIX Martin Ratio Rank: 92

WBCIX

WBCIX Risk / Return Rank: 10
WBCIX Sharpe Ratio Rank: 10
WBCIX Sortino Ratio Rank: 11
WBCIX Omega Ratio Rank: 11
WBCIX Calmar Ratio Rank: 10
WBCIX Martin Ratio Rank: 10

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.

WEDIX vs. WBCIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for William Blair Emerging Markets Debt Fund (WEDIX) and William Blair Small-Mid Cap Core Fund (WBCIX). 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.

	WEDIX	WBCIX	Difference
Sharpe ratio Return per unit of total volatility	2.26	0.25	+2.01
Sortino ratio Return per unit of downside risk	3.21	0.50	+2.70
Omega ratio Gain probability vs. loss probability	1.47	1.07	+0.40
Calmar ratio Return relative to maximum drawdown	2.62	0.20	+2.42
Martin ratio Return relative to average drawdown	11.03	0.72	+10.31
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

WEDIX vs. WBCIX - Sharpe Ratio Comparison

The current WEDIX Sharpe Ratio is 2.26, which is higher than the WBCIX Sharpe Ratio of 0.25. The chart below compares the historical Sharpe Ratios of WEDIX and WBCIX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	WEDIX	WBCIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.26	0.25	+2.01
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.13	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.38	0.36	+0.01

Correlation

The correlation between WEDIX and WBCIX is 0.31, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

WEDIX vs. WBCIX - Dividend Comparison

WEDIX's dividend yield for the trailing twelve months is around 5.84%, more than WBCIX's 3.12% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019
WEDIX William Blair Emerging Markets Debt Fund	5.84%	6.32%	6.53%	5.37%	5.85%	3.20%	0.00%	0.00%
WBCIX William Blair Small-Mid Cap Core Fund	3.12%	2.98%	1.35%	0.15%	0.00%	0.00%	0.00%	0.06%

Drawdowns

WEDIX vs. WBCIX - Drawdown Comparison

The maximum WEDIX drawdown since its inception was -30.80%, smaller than the maximum WBCIX drawdown of -39.56%. Use the drawdown chart below to compare losses from any high point for WEDIX and WBCIX.

Drawdown Indicators

	WEDIX	WBCIX	Difference
Max Drawdown Largest peak-to-trough decline	-30.80%	-39.56%	+8.76%
Max Drawdown (1Y) Largest decline over 1 year	-4.53%	-13.32%	+8.79%
Max Drawdown (5Y) Largest decline over 5 years	—	-27.65%	—
Current Drawdown Current decline from peak	-4.46%	-10.72%	+6.26%
Average Drawdown Average peak-to-trough decline	-9.56%	-9.33%	-0.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.08%	3.71%	-2.63%

Volatility

WEDIX vs. WBCIX - Volatility Comparison

The current volatility for William Blair Emerging Markets Debt Fund (WEDIX) is 1.79%, while William Blair Small-Mid Cap Core Fund (WBCIX) has a volatility of 6.19%. This indicates that WEDIX experiences smaller price fluctuations and is considered to be less risky than WBCIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WEDIX	WBCIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.79%	6.19%	-4.40%
Volatility (6M) Calculated over the trailing 6-month period	3.22%	12.17%	-8.95%
Volatility (1Y) Calculated over the trailing 1-year period	5.49%	21.09%	-15.60%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.27%	20.63%	-13.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.27%	23.93%	-16.66%