WBELX vs. EMPTX

Last updated Jun 23, 2026

WBELX (William Blair Emerging Markets Leaders Fund) and EMPTX (UBS Emerging Markets Equity Opportunity Fund) are both Emerging Markets Diversified funds. Over the past 5 years, WBELX returned 2.69%/yr vs 6.89%/yr for EMPTX. Their correlation of 0.82 suggests significant overlap in exposure. WBELX charges 1.05%/yr vs 0.19%/yr for EMPTX.

Performance

WBELX vs. EMPTX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in William Blair Emerging Markets Leaders Fund (WBELX) and UBS Emerging Markets Equity Opportunity Fund (EMPTX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WBELX achieves a 20.10% return, which is significantly lower than EMPTX's 30.13% return.

WBELX

• 1D: 2.88%
• 1M: 6.42%
• YTD: 20.10%
• 6M: 21.15%
• 1Y: 40.75%
• 3Y*: 16.88%
• 5Y*: 2.69%
• 10Y*: 8.40%

EMPTX

• 1D: 2.24%
• 1M: 6.62%
• YTD: 30.13%
• 6M: 32.40%
• 1Y: 64.07%
• 3Y*: 24.56%
• 5Y*: 6.89%
• 10Y*: —

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

WBELX vs. EMPTX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
WBELX William Blair Emerging Markets Leaders Fund	20.10%	26.44%	5.86%	6.14%	-25.85%	-7.51%	27.53%	28.37%	-14.88%
EMPTX UBS Emerging Markets Equity Opportunity Fund	30.13%	43.82%	2.51%	8.92%	-25.38%	-9.36%	24.79%	14.98%	0.55%

Correlation

The correlation between WBELX and EMPTX is 0.85, 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	0.85
Correlation (3Y) Calculated over the trailing 3-year period	0.85
Correlation (5Y) Calculated over the trailing 5-year period	0.85
Correlation (All Time) Calculated using the full available price history since Jun 4, 2018	0.82

The correlation between WBELX and EMPTX has been stable across timeframes, ranging from 0.82 to 0.85 - a consistent structural relationship.

Return for Risk

WBELX vs. EMPTX — Risk / Return Rank

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

WBELX

WBELX Risk / Return Rank: 53
WBELX Sharpe Ratio Rank: 55
WBELX Sortino Ratio Rank: 47
WBELX Omega Ratio Rank: 56
WBELX Calmar Ratio Rank: 57
WBELX Martin Ratio Rank: 51

EMPTX

EMPTX Risk / Return Rank: 92
EMPTX Sharpe Ratio Rank: 97
EMPTX Sortino Ratio Rank: 88
EMPTX Omega Ratio Rank: 89
EMPTX Calmar Ratio Rank: 93
EMPTX Martin Ratio Rank: 93

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.

WBELX vs. EMPTX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for William Blair Emerging Markets Leaders Fund (WBELX) and UBS Emerging Markets Equity Opportunity Fund (EMPTX). 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.

	WBELX	EMPTX	Difference
Sharpe ratio: Return per unit of total volatility	2.02	3.35	-1.33
Sortino ratio: Return per unit of downside risk	2.67	3.93	-1.26
Omega ratio: Gain probability vs. loss probability	1.38	1.61	-0.23
Calmar ratio: Return relative to maximum drawdown	2.77	4.84	-2.08
Martin ratio: Return relative to average drawdown	9.83	18.35	-8.51

WBELX vs. EMPTX - Sharpe Ratio Comparison

The current WBELX Sharpe Ratio is 2.02, which is lower than the EMPTX Sharpe Ratio of 3.35. The chart below compares the historical Sharpe Ratios of WBELX and EMPTX, 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

WBELX vs. EMPTX - Drawdown Comparison

The maximum WBELX drawdown since its inception was -64.98%, which is greater than EMPTX's maximum drawdown of -46.03%. Use the drawdown chart below to compare losses from any high point for WBELX and EMPTX.

Drawdown Indicators

	WBELX	EMPTX	Difference
Max Drawdown Largest peak-to-trough decline	-64.98%	-46.03%	-18.95%
Max Drawdown (1Y) Largest decline over 1 year	-14.72%	-14.50%	-0.22%
Max Drawdown (3Y) Largest decline over 3 years	-16.98%	-15.50%	-1.48%
Max Drawdown (5Y) Largest decline over 5 years	-39.63%	-41.36%	+1.73%
Max Drawdown (10Y) Largest decline over 10 years	-45.26%	—	—
Current Drawdown Current decline from peak	0.00%	-0.29%	+0.29%
Average Drawdown Average peak-to-trough decline	-18.74%	-18.28%	-0.46%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.13%	3.70%	+0.43%

Volatility

WBELX vs. EMPTX - Volatility Comparison

The current volatility for William Blair Emerging Markets Leaders Fund (WBELX) is 9.94%, while UBS Emerging Markets Equity Opportunity Fund (EMPTX) has a volatility of 10.61%. This indicates that WBELX experiences smaller price fluctuations and is considered to be less risky than EMPTX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WBELX	EMPTX	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.94%	10.61%	-0.67%
Volatility (6M) Calculated over the trailing 6-month period	17.42%	18.48%	-1.06%
Volatility (1Y) Calculated over the trailing 1-year period	20.17%	20.96%	-0.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.19%	19.72%	-2.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.73%	19.59%	-1.86%

WBELX vs. EMPTX - Expense Ratio Comparison

WBELX has a 1.05% expense ratio, which is higher than EMPTX's 0.19% expense ratio.

Dividends

WBELX vs. EMPTX - Dividend Comparison

WBELX's dividend yield for the trailing twelve months is around 0.73%, less than EMPTX's 1.47% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EMPTX UBS Emerging Markets Equity Opportunity Fund	1.47%	1.91%	3.40%	3.20%	3.84%	11.93%	1.50%	2.75%	0.54%	0.00%	0.00%	0.00%
WBELX William Blair Emerging Markets Leaders Fund	0.73%	0.88%	0.25%	0.78%	0.99%	8.25%	1.00%	0.88%	10.92%	0.67%	0.13%	0.46%

Frequently Asked Questions

Can I hold both WBELX and EMPTX in my portfolio?

WBELX and EMPTX have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WBELX or EMPTX?

EMPTX has higher volatility (10.61%) compared to WBELX (9.94%). In terms of maximum drawdown, WBELX dropped -64.98% vs EMPTX's -46.03%.

Which has better risk-adjusted returns?

EMPTX currently has the higher Sharpe Ratio (3.35 vs 2.02), 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.