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The Cook & Bynum Fund (COBYX)
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Fund Info

ISIN

US2130221060

CUSIP

213022106

Inception Date

Jun 30, 2009

Min. Investment

$5,000

Asset Class

Multi-Asset

Asset Class Size

Large-Cap

Asset Class Style

Growth

Expense Ratio

COBYX has a high expense ratio of 1.49%, indicating above-average management fees.


Share Price Chart


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Compare to other instruments

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.


The Cook & Bynum Fund

Popular comparisons:
COBYX vs. XLF
Popular comparisons:

Performance

Performance Chart


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S&P 500

Returns By Period

The Cook & Bynum Fund (COBYX) returned 17.32% year-to-date (YTD) and 5.25% over the past 12 months. Over the past 10 years, COBYX returned 3.94% annually, underperforming the S&P 500 benchmark at 10.84%.


COBYX

YTD

17.32%

1M

1.76%

6M

14.73%

1Y

5.25%

3Y*

9.90%

5Y*

11.13%

10Y*

3.94%

^GSPC (Benchmark)

YTD

0.52%

1M

6.32%

6M

-1.44%

1Y

12.25%

3Y*

12.45%

5Y*

14.20%

10Y*

10.84%

*Annualized

Monthly Returns

The table below presents the monthly returns of COBYX, with color gradation from worst to best to easily spot seasonal factors. Returns are adjusted for dividends.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20253.32%8.97%1.68%0.89%1.58%17.32%
20242.79%-2.18%1.33%-3.99%6.70%-2.38%2.68%-3.25%0.54%-4.65%-3.44%-2.91%-9.03%
20235.89%-1.46%1.48%2.98%-1.93%5.18%1.00%0.12%-4.56%-2.91%7.92%2.63%16.73%
20220.08%2.80%2.14%-5.98%2.76%-8.51%1.79%-1.60%-3.18%11.10%6.43%2.60%9.28%
2021-3.15%2.00%7.04%4.43%2.05%-1.08%-2.10%1.19%-4.98%0.92%-2.44%5.55%9.05%
2020-2.22%-9.02%-15.24%1.81%1.59%-0.37%5.91%-0.78%-4.48%-0.09%12.71%1.39%-10.97%
20196.94%0.66%0.43%3.46%-6.20%3.49%1.58%-2.12%1.88%-2.62%-2.33%4.59%9.40%
20183.54%-3.53%-0.78%-1.57%-1.23%-0.68%2.13%-2.33%0.88%-8.09%3.25%-5.22%-13.40%
20170.61%1.48%4.64%1.71%1.31%0.37%2.08%-0.18%-0.66%2.06%-0.65%1.51%15.12%
2016-0.20%0.40%5.04%-1.20%-0.06%2.17%-0.38%-0.50%-0.13%0.44%-2.14%-0.12%3.20%
2015-3.27%2.19%-2.21%1.53%-0.59%-2.70%1.55%-3.13%-0.00%3.37%-0.33%0.33%-3.47%
2014-2.49%0.27%3.15%1.50%0.06%0.26%-0.25%2.82%-0.06%-0.31%2.81%-1.71%6.02%
Go deeper with the Portfolio Analysis tool — backtest performance, assess risk, compare to benchmarks, and more

Risk-Adjusted Performance

Risk-Adjusted Performance Rank

The current rank of COBYX is 24, meaning it’s performing worse than 76% of other mutual funds on our website when it comes to balancing risk and reward. Below is a breakdown of how it compares using common performance measures.


The Risk-Adjusted Performance Rank of COBYX is 2424
Overall Rank
The Sharpe Ratio Rank of COBYX is 2424
Sharpe Ratio Rank
The Sortino Ratio Rank of COBYX is 2222
Sortino Ratio Rank
The Omega Ratio Rank of COBYX is 2323
Omega Ratio Rank
The Calmar Ratio Rank of COBYX is 2929
Calmar Ratio Rank
The Martin Ratio Rank of COBYX is 2121
Martin Ratio Rank
The risk-adjusted ranks indicate the investment's position relative to the market. A rank closer to 100 signifies top-performing investments, while a rank closer to 0 might suggest underperformance, based on the selected ratio. The values are calculated based on the past 12 months of returns.

Risk-Adjusted Performance Indicators

The charts below present risk-adjusted performance metrics for The Cook & Bynum Fund (COBYX) and compare them to a chosen benchmark (^GSPC). These indicators evaluate an investment's returns against its associated risks.


The Sharpe ratio helps investors understand how much return they're getting for the level of risk taken. A higher Sharpe ratio indicates better risk-adjusted performance, meaning more reward for each unit of risk.

The Cook & Bynum Fund Sharpe ratios as of May 30, 2025 (values are recalculated daily):

  • 1-Year: 0.28
  • 5-Year: 0.70
  • 10-Year: 0.29
  • All Time: 0.52

These values reflect how efficiently the investment has delivered returns relative to its volatility over different time periods. All figures are annualized and based on daily total returns (including price changes and dividends).

The chart below shows the rolling Sharpe ratio of The Cook & Bynum Fund compared to the selected benchmark. This view highlights how the investment's risk-adjusted performance has changed over time.


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Go to the full Sharpe Ratio tool to analyze any stock or portfolio. Customize time frames, set your own risk-free rate, and more

Dividends

Dividend History

The Cook & Bynum Fund provided a 1.24% dividend yield over the last twelve months, with an annual payout of $0.22 per share. The fund has been increasing its distributions for 2 consecutive years.


0.00%2.00%4.00%6.00%8.00%10.00%12.00%$0.00$0.50$1.00$1.5020142015201620172018201920202021202220232024
Dividends
Dividend Yield
PeriodTTM20242023202220212020201920182017201620152014
Dividend$0.22$0.22$0.17$0.17$0.29$0.04$0.10$1.62$0.31$0.75$0.00$0.59

Dividend yield

1.24%1.45%1.01%1.16%2.18%0.32%0.70%12.60%1.88%5.09%0.00%3.80%

Monthly Dividends

The table displays the monthly dividend distributions for The Cook & Bynum Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2025$0.00$0.00$0.00$0.00$0.00$0.00
2024$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.22$0.22
2023$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.17$0.17
2022$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.17$0.17
2021$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.29$0.29
2020$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.04$0.04
2019$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.10$0.10
2018$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$1.62$1.62
2017$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.31$0.31
2016$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.75$0.75
2015$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00
2014$0.59$0.59

Drawdowns

Drawdowns Chart

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.


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Worst Drawdowns

The table below displays the maximum drawdowns of the The Cook & Bynum Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the The Cook & Bynum Fund was 34.18%, occurring on Mar 23, 2020. Recovery took 707 trading sessions.

The current The Cook & Bynum Fund drawdown is 0.12%.


Depth

Start

To Bottom

Bottom

To Recover

End

Total

-34.18%Feb 2, 2018537Mar 23, 2020707Jan 11, 20231244
-15.09%Jul 18, 2024123Jan 13, 202571Apr 25, 2025194
-11.73%Aug 31, 202336Oct 20, 202337Dec 13, 202373
-11.05%Dec 1, 2014185Aug 25, 2015151Apr 1, 2016336
-10.29%Apr 27, 201048Jul 2, 201087Nov 4, 2010135
Go to the full Drawdowns tool for more analysis options, including inflation-adjusted drawdowns, and more

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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