BFOCX vs. ARKVX

Last updated Jun 5, 2026

BFOCX (Berkshire Focus Fund) and ARKVX (ARK Venture Fund) are both Technology Equities funds. Over the past 3 years, BFOCX returned 51.67%/yr vs 37.85%/yr for ARKVX. A 0.67 correlation means they provide meaningful diversification when combined. BFOCX charges 1.94%/yr vs 2.90%/yr for ARKVX.

Performance

BFOCX vs. ARKVX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Berkshire Focus Fund (BFOCX) and ARK Venture Fund (ARKVX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BFOCX achieves a 57.47% return, which is significantly higher than ARKVX's 14.60% return.

BFOCX

• 1D: -2.08%
• 1M: 11.06%
• YTD: 57.47%
• 6M: 51.55%
• 1Y: 95.00%
• 3Y*: 51.67%
• 5Y*: 12.80%
• 10Y*: 22.62%

ARKVX

• 1D: 2.42%
• 1M: 5.42%
• YTD: 14.60%
• 6M: 29.28%
• 1Y: 73.96%
• 3Y*: 37.85%
• 5Y*: —
• 10Y*: —

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

BFOCX vs. ARKVX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
BFOCX Berkshire Focus Fund	57.47%	28.67%	59.16%	50.20%	-2.77%
ARKVX ARK Venture Fund	14.60%	55.68%	6.69%	61.25%	-6.24%

Correlation

The correlation between BFOCX and ARKVX is 0.43, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.43
Correlation (3Y) Calculated over the trailing 3-year period	0.62
Correlation (All Time) Calculated using the full available price history since Nov 8, 2022	0.67

Over the past year, the correlation between BFOCX and ARKVX has dropped to 0.43 - well below their long-term average of 0.67, suggesting their price drivers have been diverging.

Return for Risk

BFOCX vs. ARKVX — Risk / Return Rank

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

BFOCX

BFOCX Risk / Return Rank: 73
BFOCX Sharpe Ratio Rank: 80
BFOCX Sortino Ratio Rank: 50
BFOCX Omega Ratio Rank: 53
BFOCX Calmar Ratio Rank: 94
BFOCX Martin Ratio Rank: 86

ARKVX

ARKVX Risk / Return Rank: 99
ARKVX Sharpe Ratio Rank: 99
ARKVX Sortino Ratio Rank: 100
ARKVX Omega Ratio Rank: 98
ARKVX Calmar Ratio Rank: 98
ARKVX Martin Ratio Rank: 98

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.

BFOCX vs. ARKVX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Berkshire Focus Fund (BFOCX) and ARK Venture Fund (ARKVX). 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.

	BFOCX	ARKVX	Difference
Sharpe ratio: Return per unit of total volatility	2.62	4.19	-1.57
Sortino ratio: Return per unit of downside risk	2.97	11.53	-8.57
Omega ratio: Gain probability vs. loss probability	1.40	2.43	-1.03
Calmar ratio: Return relative to maximum drawdown	5.61	9.59	-3.99
Martin ratio: Return relative to average drawdown	16.30	36.73	-20.44
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BFOCX vs. ARKVX - Sharpe Ratio Comparison

The current BFOCX Sharpe Ratio is 2.62, which is lower than the ARKVX Sharpe Ratio of 4.19. The chart below compares the historical Sharpe Ratios of BFOCX and ARKVX, 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

	BFOCX	ARKVX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.62	4.19	-1.57
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.30	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.60	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.26	1.90	-1.64

Drawdowns

BFOCX vs. ARKVX - Drawdown Comparison

The maximum BFOCX drawdown since its inception was -95.80%, which is greater than ARKVX's maximum drawdown of -19.10%. Use the drawdown chart below to compare losses from any high point for BFOCX and ARKVX.

Drawdown Indicators

	BFOCX	ARKVX	Difference
Max Drawdown Largest peak-to-trough decline	-95.80%	-19.10%	-76.70%
Max Drawdown (1Y) Largest decline over 1 year	-17.22%	-8.14%	-9.08%
Max Drawdown (3Y) Largest decline over 3 years	-40.55%	-19.10%	-21.45%
Max Drawdown (5Y) Largest decline over 5 years	-72.53%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-72.53%	—	—
Current Drawdown Current decline from peak	-2.34%	0.00%	-2.34%
Average Drawdown Average peak-to-trough decline	-58.16%	-4.20%	-53.96%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.92%	2.09%	+3.83%

Volatility

BFOCX vs. ARKVX - Volatility Comparison

Berkshire Focus Fund (BFOCX) has a higher volatility of 13.54% compared to ARK Venture Fund (ARKVX) at 4.94%. This indicates that BFOCX's price experiences larger fluctuations and is considered to be riskier than ARKVX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BFOCX	ARKVX	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.54%	4.94%	+8.60%
Volatility (6M) Calculated over the trailing 6-month period	29.40%	13.33%	+16.07%
Volatility (1Y) Calculated over the trailing 1-year period	36.93%	18.64%	+18.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	43.52%	18.70%	+24.82%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	37.56%	18.70%	+18.86%

BFOCX vs. ARKVX - Expense Ratio Comparison

BFOCX has a 1.94% expense ratio, which is lower than ARKVX's 2.90% expense ratio.

Dividends

BFOCX vs. ARKVX - Dividend Comparison

Neither BFOCX nor ARKVX has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ARKVX ARK Venture Fund	0.00%	0.00%	0.32%	0.72%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
BFOCX Berkshire Focus Fund	0.00%	0.00%	0.00%	0.00%	0.00%	19.54%	21.20%	14.20%	5.70%	21.73%	0.14%	9.52%

Frequently Asked Questions

Can I hold both BFOCX and ARKVX in my portfolio?

BFOCX and ARKVX have a correlation of 0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BFOCX or ARKVX?

BFOCX has higher volatility (13.54%) compared to ARKVX (4.94%). In terms of maximum drawdown, BFOCX dropped -95.80% vs ARKVX's -19.10%.

Which has better risk-adjusted returns?

ARKVX currently has the higher Sharpe Ratio (4.19 vs 2.62), 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.