DEMGX vs. COBYX

Last updated Jun 4, 2026

DEMGX (DFA Emerging Markets Targeted Value Portfolio) and COBYX (The Cook & Bynum Fund) are both Emerging Markets Diversified funds. Over the past 5 years, DEMGX returned 8.05%/yr vs 8.13%/yr for COBYX. At a 0.49 correlation, their price movements are largely independent. DEMGX charges 0.66%/yr vs 1.49%/yr for COBYX.

Performance

DEMGX vs. COBYX - Performance Comparison

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

Returns By Period

In the year-to-date period, DEMGX achieves a 16.94% return, which is significantly higher than COBYX's 10.74% return.

DEMGX

• 1D: -0.07%
• 1M: 3.54%
• YTD: 16.94%
• 6M: 18.72%
• 1Y: 34.76%
• 3Y*: 18.71%
• 5Y*: 8.05%
• 10Y*: —

COBYX

• 1D: 0.67%
• 1M: 4.17%
• YTD: 10.74%
• 6M: 13.67%
• 1Y: 14.46%
• 3Y*: 8.98%
• 5Y*: 8.13%
• 10Y*: 4.79%

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

DEMGX vs. COBYX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
DEMGX DFA Emerging Markets Targeted Value Portfolio	16.94%	24.27%	4.62%	17.19%	-12.98%	14.64%	8.55%	11.08%	0.38%
COBYX The Cook & Bynum Fund	10.74%	20.50%	-10.32%	16.73%	9.28%	9.05%	-10.97%	9.40%	-4.21%

Correlation

The correlation between DEMGX and COBYX is 0.29, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.29
Correlation (3Y) Calculated over the trailing 3-year period	0.38
Correlation (5Y) Calculated over the trailing 5-year period	0.45
Correlation (All Time) Calculated using the full available price history since Nov 15, 2018	0.49

Over the past year, the correlation between DEMGX and COBYX has dropped to 0.29 - well below their long-term average of 0.49, suggesting their price drivers have been diverging.

Return for Risk

DEMGX vs. COBYX — Risk / Return Rank

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

DEMGX

DEMGX Risk / Return Rank: 69
DEMGX Sharpe Ratio Rank: 79
DEMGX Sortino Ratio Rank: 68
DEMGX Omega Ratio Rank: 72
DEMGX Calmar Ratio Rank: 67
DEMGX Martin Ratio Rank: 58

COBYX

COBYX Risk / Return Rank: 19
COBYX Sharpe Ratio Rank: 19
COBYX Sortino Ratio Rank: 20
COBYX Omega Ratio Rank: 18
COBYX Calmar Ratio Rank: 20
COBYX Martin Ratio Rank: 19

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.

DEMGX vs. COBYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for DFA Emerging Markets Targeted Value Portfolio (DEMGX) 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.

	DEMGX	COBYX	Difference
Sharpe ratio: Return per unit of total volatility	2.57	1.23	+1.34
Sortino ratio: Return per unit of downside risk	3.45	1.86	+1.59
Omega ratio: Gain probability vs. loss probability	1.48	1.22	+0.25
Calmar ratio: Return relative to maximum drawdown	3.19	1.62	+1.56
Martin ratio: Return relative to average drawdown	11.58	5.15	+6.43
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

DEMGX vs. COBYX - Sharpe Ratio Comparison

The current DEMGX Sharpe Ratio is 2.57, which is higher than the COBYX Sharpe Ratio of 1.23. The chart below compares the historical Sharpe Ratios of DEMGX and COBYX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	DEMGX	COBYX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.57	1.23	+1.34
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.60	0.59	+0.01
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.35	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.68	0.39	+0.29

Drawdowns

DEMGX vs. COBYX - Drawdown Comparison

The maximum DEMGX drawdown since its inception was -42.40%, which is greater than COBYX's maximum drawdown of -34.18%. Use the drawdown chart below to compare losses from any high point for DEMGX and COBYX.

Drawdown Indicators

	DEMGX	COBYX	Difference
Max Drawdown Largest peak-to-trough decline	-42.40%	-34.18%	-8.22%
Max Drawdown (1Y) Largest decline over 1 year	-11.10%	-8.95%	-2.15%
Max Drawdown (3Y) Largest decline over 3 years	-17.68%	-16.29%	-1.39%
Max Drawdown (5Y) Largest decline over 5 years	-26.19%	-17.10%	-9.09%
Max Drawdown (10Y) Largest decline over 10 years	—	-34.18%	—
Current Drawdown Current decline from peak	-0.07%	-1.12%	+1.05%
Average Drawdown Average peak-to-trough decline	-7.58%	-6.80%	-0.78%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.04%	2.99%	+0.05%

Volatility

DEMGX vs. COBYX - Volatility Comparison

DFA Emerging Markets Targeted Value Portfolio (DEMGX) has a higher volatility of 4.93% compared to The Cook & Bynum Fund (COBYX) at 3.75%. This indicates that DEMGX'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

	DEMGX	COBYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.93%	3.75%	+1.18%
Volatility (6M) Calculated over the trailing 6-month period	11.30%	9.46%	+1.84%
Volatility (1Y) Calculated over the trailing 1-year period	13.74%	11.78%	+1.96%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.45%	13.99%	-0.54%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.76%	13.64%	+2.12%

DEMGX vs. COBYX - Expense Ratio Comparison

DEMGX has a 0.66% expense ratio, which is lower than COBYX's 1.49% expense ratio.

Dividends

DEMGX vs. COBYX - Dividend Comparison

DEMGX's dividend yield for the trailing twelve months is around 4.26%, more than COBYX's 1.06% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
COBYX The Cook & Bynum Fund	1.06%	1.18%	0.00%	1.01%	1.16%	2.18%	0.32%	0.69%	12.60%	1.88%	5.09%
DEMGX DFA Emerging Markets Targeted Value Portfolio	4.26%	4.98%	4.60%	5.21%	4.28%	10.93%	2.23%	3.17%	0.08%	0.00%	0.00%

Frequently Asked Questions

Can I hold both DEMGX and COBYX in my portfolio?

DEMGX and COBYX have a correlation of 0.29, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DEMGX or COBYX?

DEMGX has higher volatility (4.93%) compared to COBYX (3.75%). In terms of maximum drawdown, DEMGX dropped -42.40% vs COBYX's -34.18%.

Which has better risk-adjusted returns?

DEMGX currently has the higher Sharpe Ratio (2.57 vs 1.23), 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.