EMPTX vs. COBYX

Last updated Apr 2, 2026

Compare and contrast key facts about UBS Emerging Markets Equity Opportunity Fund (EMPTX) and The Cook & Bynum Fund (COBYX).

EMPTX is managed by UBS. It was launched on May 30, 2018. COBYX is managed by Cook & Bynum. It was launched on Jun 30, 2009.

Performance

EMPTX vs. COBYX - Performance Comparison

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

EMPTX vs. COBYX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
EMPTX UBS Emerging Markets Equity Opportunity Fund	2.95%	43.82%	2.51%	8.92%	-25.38%	-9.36%	24.79%	14.98%	0.55%
COBYX The Cook & Bynum Fund	3.01%	20.50%	-10.32%	16.73%	9.28%	9.05%	-10.97%	9.40%	-10.17%

Returns By Period

The year-to-date returns for both investments are quite close, with EMPTX having a 2.95% return and COBYX slightly higher at 3.01%.

EMPTX

• 1D: 3.14%
• 1M: -9.75%
• YTD: 2.95%
• 6M: 8.93%
• 1Y: 38.76%
• 3Y*: 17.16%
• 5Y*: 1.70%
• 10Y*: —

COBYX

• 1D: 1.85%
• 1M: -3.87%
• YTD: 3.01%
• 6M: 7.66%
• 1Y: 7.10%
• 3Y*: 7.06%
• 5Y*: 7.72%
• 10Y*: 3.93%

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

EMPTX vs. COBYX - Expense Ratio Comparison

EMPTX has a 0.19% expense ratio, which is lower than COBYX's 1.49% expense ratio.

COBYX

The Cook & Bynum Fund

EMPTX

UBS Emerging Markets Equity Opportunity Fund

Return for Risk

EMPTX vs. COBYX — Risk / Return Rank

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

EMPTX

EMPTX Risk / Return Rank: 90
EMPTX Sharpe Ratio Rank: 95
EMPTX Sortino Ratio Rank: 92
EMPTX Omega Ratio Rank: 91
EMPTX Calmar Ratio Rank: 88
EMPTX Martin Ratio Rank: 86

COBYX

COBYX Risk / Return Rank: 24
COBYX Sharpe Ratio Rank: 21
COBYX Sortino Ratio Rank: 19
COBYX Omega Ratio Rank: 20
COBYX Calmar Ratio Rank: 34
COBYX Martin Ratio Rank: 25

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.

EMPTX vs. COBYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for UBS Emerging Markets Equity Opportunity Fund (EMPTX) and The Cook & Bynum Fund (COBYX). 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.

	EMPTX	COBYX	Difference
Sharpe ratio Return per unit of total volatility	2.26	0.62	+1.64
Sortino ratio Return per unit of downside risk	2.84	0.92	+1.92
Omega ratio Gain probability vs. loss probability	1.43	1.14	+0.30
Calmar ratio Return relative to maximum drawdown	2.42	1.05	+1.37
Martin ratio Return relative to average drawdown	9.35	3.15	+6.21
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

EMPTX vs. COBYX - Sharpe Ratio Comparison

The current EMPTX Sharpe Ratio is 2.26, which is higher than the COBYX Sharpe Ratio of 0.62. The chart below compares the historical Sharpe Ratios of EMPTX and COBYX, 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

	EMPTX	COBYX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.26	0.62	+1.64
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.09	0.56	-0.47
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.29	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.33	0.35	-0.02

Correlation

The correlation between EMPTX and COBYX is 0.40, 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

EMPTX vs. COBYX - Dividend Comparison

EMPTX's dividend yield for the trailing twelve months is around 1.86%, more than COBYX's 1.14% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
EMPTX UBS Emerging Markets Equity Opportunity Fund	1.86%	1.91%	3.40%	3.20%	3.84%	11.93%	1.50%	2.75%	0.54%	0.00%	0.00%
COBYX The Cook & Bynum Fund	1.14%	1.18%	0.00%	1.01%	1.16%	2.18%	0.32%	0.69%	12.60%	1.88%	5.09%

Drawdowns

EMPTX vs. COBYX - Drawdown Comparison

The maximum EMPTX drawdown since its inception was -46.03%, which is greater than COBYX's maximum drawdown of -34.18%. Use the drawdown chart below to compare losses from any high point for EMPTX and COBYX.

Drawdown Indicators

	EMPTX	COBYX	Difference
Max Drawdown Largest peak-to-trough decline	-46.03%	-34.18%	-11.85%
Max Drawdown (1Y) Largest decline over 1 year	-14.50%	-8.95%	-5.55%
Max Drawdown (5Y) Largest decline over 5 years	-41.73%	-17.10%	-24.63%
Max Drawdown (10Y) Largest decline over 10 years	—	-34.18%	—
Current Drawdown Current decline from peak	-11.81%	-6.21%	-5.60%
Average Drawdown Average peak-to-trough decline	-18.72%	-6.86%	-11.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.94%	2.99%	+0.95%

Volatility

EMPTX vs. COBYX - Volatility Comparison

UBS Emerging Markets Equity Opportunity Fund (EMPTX) has a higher volatility of 9.66% compared to The Cook & Bynum Fund (COBYX) at 5.20%. This indicates that EMPTX's price experiences larger fluctuations and is considered to be riskier than COBYX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EMPTX	COBYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.66%	5.20%	+4.46%
Volatility (6M) Calculated over the trailing 6-month period	13.96%	8.42%	+5.54%
Volatility (1Y) Calculated over the trailing 1-year period	18.98%	14.59%	+4.39%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.90%	13.98%	+4.92%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.24%	13.55%	+5.69%