JATAX vs. BFOCX

Last updated Aug 1, 2026

JATAX (Janus Henderson Global Technology and Innovation Fund Class A) and BFOCX (Berkshire Focus Fund) are both Technology Equities funds. Over the past 10 years, JATAX returned 21.83%/yr vs 18.99%/yr for BFOCX. Their correlation of 0.87 means they have usually moved in the same direction. JATAX charges 1.00%/yr vs 1.94%/yr for BFOCX.

Performance

JATAX vs. BFOCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Janus Henderson Global Technology and Innovation Fund Class A (JATAX) and Berkshire Focus Fund (BFOCX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, JATAX achieves a 18.17% return, which is significantly lower than BFOCX's 21.74% return. Over the past 10 years, JATAX has outperformed BFOCX with an annualized return of 21.83%, while BFOCX has yielded a comparatively lower 18.99% annualized return.

JATAX

• 1D: 6.75%
• 1M: -6.34%
• 6M: 15.63%
• YTD: 18.17%
• 1Y: 27.19%
• 3Y*: 28.16%
• 5Y*: 13.71%
• 10Y*: 21.83%
• ALL TIME*: 19.65%

BFOCX

• 1D: 15.71%
• 1M: -12.42%
• 6M: 22.53%
• YTD: 21.74%
• 1Y: 31.11%
• 3Y*: 33.99%
• 5Y*: 6.03%
• 10Y*: 18.99%
• ALL TIME*: 9.33%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
BFOCX Berkshire Focus Fund	$0.00	$0.00	$0.00
JATAX Janus Henderson Global Technology and Innovation Fund Class A	$0.00	$0.00	$0.00

JATAX vs. BFOCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
JATAX Janus Henderson Global Technology and Innovation Fund Class A	18.17%	24.77%	32.09%	55.02%	-37.75%	17.31%	50.90%	45.36%	0.72%	44.47%
BFOCX Berkshire Focus Fund	21.74%	28.67%	59.16%	50.20%	-65.06%	-1.79%	90.81%	40.56%	10.04%	44.10%

Correlation

The correlation between JATAX and BFOCX is 0.84, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.84
Correlation (3Y) Balances recent behavior with more history.	0.86
Correlation (5Y) Shows whether the relationship held over a longer period.	0.89
Correlation (10Y) Provides a long-term view across more market conditions.	0.88
Correlation (All Time) Calculated using the full available price history since Jul 6, 2009	0.87

The correlation between JATAX and BFOCX has been stable across timeframes, ranging from 0.84 to 0.89 - a consistent structural relationship.

Return for Risk

JATAX vs. BFOCX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

JATAX

JATAX Risk / Return Rank: 27
JATAX Sharpe Ratio Rank: 25
JATAX Sortino Ratio Rank: 25
JATAX Omega Ratio Rank: 26
JATAX Calmar Ratio Rank: 28
JATAX Martin Ratio Rank: 29

BFOCX

BFOCX Risk / Return Rank: 18
BFOCX Sharpe Ratio Rank: 14
BFOCX Sortino Ratio Rank: 19
BFOCX Omega Ratio Rank: 20
BFOCX Calmar Ratio Rank: 15
BFOCX Martin Ratio Rank: 21

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

JATAX vs. BFOCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Janus Henderson Global Technology and Innovation Fund Class A (JATAX) and Berkshire Focus Fund (BFOCX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	JATAX	BFOCX	Difference
Sharpe ratio: Return per unit of total volatility	0.90	0.53	+0.37
Sortino ratio: Return per unit of downside risk	1.34	1.04	+0.30
Omega ratio: Gain probability vs. loss probability	1.17	1.14	+0.04
Calmar ratio: Return relative to maximum drawdown	1.31	0.72	+0.59
Martin ratio: Return relative to average drawdown	4.32	2.93	+1.39

JATAX vs. BFOCX - Sharpe Ratio Comparison

The current JATAX Sharpe Ratio is 0.90, which is higher than the BFOCX Sharpe Ratio of 0.53. The chart below compares the historical Sharpe Ratios of JATAX and BFOCX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

JATAX vs. BFOCX - Drawdown Comparison

The maximum JATAX drawdown since its inception was -46.55%, smaller than the maximum BFOCX drawdown of -95.80%. Use the drawdown chart below to compare losses from any high point for JATAX and BFOCX.

Drawdown Indicators

	JATAX	BFOCX	Difference
Max Drawdown Largest peak-to-trough decline	-46.55%	-95.80%	+49.25%
Max Drawdown (1Y) Largest decline over 1 year	-18.55%	-37.96%	+19.41%
Max Drawdown (3Y) Largest decline over 3 years	-23.96%	-40.55%	+16.59%
Max Drawdown (5Y) Largest decline over 5 years	-46.55%	-72.53%	+25.98%
Max Drawdown (10Y) Largest decline over 10 years	-46.55%	-72.53%	+25.98%
Current Drawdown Current decline from peak	-13.05%	-28.22%	+15.17%
Average Drawdown Average peak-to-trough decline	-6.77%	-57.93%	+51.16%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.62%	9.33%	-3.71%

Volatility

JATAX vs. BFOCX - Volatility Comparison

The current volatility for Janus Henderson Global Technology and Innovation Fund Class A (JATAX) is 12.44%, while Berkshire Focus Fund (BFOCX) has a volatility of 27.96%. This indicates that JATAX experiences smaller price fluctuations and is considered to be less risky than BFOCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	JATAX	BFOCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.44%	27.96%	-15.52%
Volatility (6M) Calculated over the trailing 6-month period	23.70%	45.59%	-21.89%
Volatility (1Y) Calculated over the trailing 1-year period	26.96%	51.33%	-24.37%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.50%	46.37%	-18.87%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.09%	39.23%	-14.14%

JATAX vs. BFOCX - Expense Ratio Comparison

JATAX has a 1.00% expense ratio, which is lower than BFOCX's 1.94% expense ratio.

Dividends

JATAX vs. BFOCX - Dividend Comparison

JATAX's dividend yield for the trailing twelve months is around 12.03%, while BFOCX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
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%
JATAX Janus Henderson Global Technology and Innovation Fund Class A	12.03%	14.21%	12.24%	0.80%	0.00%	16.47%	9.16%	9.08%	6.63%	7.63%	4.92%	7.87%

Frequently Asked Questions

Can I hold both JATAX and BFOCX in my portfolio?

JATAX and BFOCX have a correlation of 0.84, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, JATAX or BFOCX?

BFOCX has higher volatility (27.96%) compared to JATAX (12.44%). In terms of maximum drawdown, JATAX dropped -46.55% vs BFOCX's -95.80%.

Which has better risk-adjusted returns?

JATAX currently has the higher Sharpe Ratio (0.90 vs 0.53), 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.