The Cook & Bynum Fund (COBYX)

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The chart shows the growth of an initial investment of $10,000 in The Cook & Bynum Fund, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.

The Cook & Bynum Fund (COBYX) has returned 1.14% so far this year and 6.45% over the past 12 months. Over the last ten years, COBYX has returned 3.74% per year, falling short of the S&P 500 Index benchmark, which averaged 12.16% annually.

Based on dividend-adjusted daily data since Jan 2, 2013, COBYX's average daily return is +0.02%, while the average monthly return is +0.40%. At this rate, your investment would double in approximately 14.5 years.

Historically, 56% of months were positive and 44% were negative. The best month was Nov 2020 with a return of +12.7%, while the worst month was Mar 2020 at -15.2%. The longest winning streak lasted 7 consecutive months, and the longest losing streak was 5 months.

On a daily basis, COBYX closed higher 49% of trading days. The best single day was Apr 9, 2025 with a return of +5.0%, while the worst single day was Apr 7, 2025 at -7.0%.

The Cook & Bynum Fund has an annualized alpha of -1.03%, beta of 0.47, and R² of 0.42 versus S&P 500 Index. Calculated based on daily prices since January 03, 2013.

• This fund participated in 61.91% of S&P 500 Index downside but only 43.35% of its upside — more exposed to losses than it benefited from rallies.
• Beta of 0.47 may look defensive, but with R² of 0.42 this fund is largely uncorrelated with S&P 500 Index — low beta reflects independence, not downside protection. See the Volatility section for a true picture of this fund's risk.
• R² of 0.42 means the benchmark explains less than half of this fund's behavior — treat beta with caution or consider switching to a more representative benchmark.

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

COBYX ranks 17 for risk / return — in the bottom 17% of mutual funds on our site. This means you're taking on significantly more risk than the returns justify. Consider whether the potential upside is worth the volatility, or explore alternatives with better risk / return profiles.

The table below present risk-adjusted performance metrics for The Cook & Bynum Fund (COBYX) and compare them to a chosen benchmark (S&P 500 Index).

The Cook & Bynum Fund provided a 1.17% dividend yield over the last twelve months, with an annual payout of $0.21 per share.

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.

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.

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 7.92%.

The chart below shows the rolling one-month volatility.