BPTIX vs. BRK-B

Last updated Jun 3, 2026

BPTIX (Baron Partners Fund Institutional Class) is Large Cap Growth Equities fund managed by Baron Capital Group, while BRK-B (Berkshire Hathaway Inc.) is a stock. Over the past 10 years, BPTIX returned 24.71%/yr vs 12.82%/yr for BRK-B. A 0.51 correlation means they provide meaningful diversification when combined.

Performance

BPTIX vs. BRK-B - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Baron Partners Fund Institutional Class (BPTIX) and Berkshire Hathaway Inc. (BRK-B). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BPTIX achieves a 1.14% return, which is significantly higher than BRK-B's -6.20% return. Over the past 10 years, BPTIX has outperformed BRK-B with an annualized return of 24.71%, while BRK-B has yielded a comparatively lower 12.82% annualized return.

BPTIX

• 1D: 1.01%
• 1M: 5.83%
• YTD: 1.14%
• 6M: 23.39%
• 1Y: 34.36%
• 3Y*: 23.66%
• 5Y*: 13.29%
• 10Y*: 24.71%

BRK-B

• 1D: 0.26%
• 1M: -0.32%
• YTD: -6.20%
• 6M: -6.94%
• 1Y: -6.23%
• 3Y*: 12.69%
• 5Y*: 10.06%
• 10Y*: 12.82%

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

BPTIX vs. BRK-B - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BPTIX Baron Partners Fund Institutional Class	1.14%	24.86%	33.09%	43.47%	-42.39%	31.69%	149.45%	47.29%	-1.75%	31.91%
BRK-B Berkshire Hathaway Inc.	-6.20%	10.89%	27.09%	15.46%	3.31%	28.95%	2.37%	10.93%	3.01%	21.62%

Correlation

The correlation between BPTIX and BRK-B is 0.19, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.19
Correlation (3Y) Calculated over the trailing 3-year period	0.29
Correlation (5Y) Calculated over the trailing 5-year period	0.37
Correlation (10Y) Calculated over the trailing 10-year period	0.41
Correlation (All Time) Calculated using the full available price history since Jun 1, 2009	0.51

Over the past year, the correlation between BPTIX and BRK-B has dropped to 0.19 - well below their long-term average of 0.51, suggesting their price drivers have been diverging.

Return for Risk

BPTIX vs. BRK-B — Risk / Return Rank

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

BPTIX

BPTIX Risk / Return Rank: 35
BPTIX Sharpe Ratio Rank: 17
BPTIX Sortino Ratio Rank: 35
BPTIX Omega Ratio Rank: 32
BPTIX Calmar Ratio Rank: 61
BPTIX Martin Ratio Rank: 31

BRK-B

BRK-B Risk / Return Rank: 17
BRK-B Sharpe Ratio Rank: 21
BRK-B Sortino Ratio Rank: 19
BRK-B Omega Ratio Rank: 19
BRK-B Calmar Ratio Rank: 15
BRK-B Martin Ratio Rank: 8

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.

BPTIX vs. BRK-B - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Baron Partners Fund Institutional Class (BPTIX) and Berkshire Hathaway Inc. (BRK-B). 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.

	BPTIX	BRK-B	Difference
Sharpe ratio Return per unit of total volatility	1.23	-0.44	+1.66
Sortino ratio Return per unit of downside risk	2.49	-0.51	+3.00
Omega ratio Gain probability vs. loss probability	1.30	0.94	+0.36
Calmar ratio Return relative to maximum drawdown	3.00	-0.68	+3.68
Martin ratio Return relative to average drawdown	7.30	-1.36	+8.66
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BPTIX vs. BRK-B - Sharpe Ratio Comparison

The current BPTIX Sharpe Ratio is 1.23, which is higher than the BRK-B Sharpe Ratio of -0.44. The chart below compares the historical Sharpe Ratios of BPTIX and BRK-B, 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

	BPTIX	BRK-B	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.23	-0.44	+1.66
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.40	0.59	-0.19
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.76	0.66	+0.10
Sharpe Ratio (All Time) Calculated using the full available price history	0.74	0.48	+0.26

Drawdowns

BPTIX vs. BRK-B - Drawdown Comparison

The maximum BPTIX drawdown since its inception was -51.26%, roughly equal to the maximum BRK-B drawdown of -53.86%. Use the drawdown chart below to compare losses from any high point for BPTIX and BRK-B.

Drawdown Indicators

	BPTIX	BRK-B	Difference
Max Drawdown Largest peak-to-trough decline	-51.26%	-53.86%	+2.60%
Max Drawdown (1Y) Largest decline over 1 year	-10.64%	-9.42%	-1.22%
Max Drawdown (3Y) Largest decline over 3 years	-33.29%	-14.95%	-18.34%
Max Drawdown (5Y) Largest decline over 5 years	-49.72%	-26.58%	-23.14%
Max Drawdown (10Y) Largest decline over 10 years	-51.26%	-29.57%	-21.69%
Current Drawdown Current decline from peak	-2.34%	-12.65%	+10.31%
Average Drawdown Average peak-to-trough decline	-10.80%	-11.07%	+0.27%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.37%	4.73%	-0.36%

Volatility

BPTIX vs. BRK-B - Volatility Comparison

The current volatility for Baron Partners Fund Institutional Class (BPTIX) is 3.09%, while Berkshire Hathaway Inc. (BRK-B) has a volatility of 3.79%. This indicates that BPTIX experiences smaller price fluctuations and is considered to be less risky than BRK-B based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BPTIX	BRK-B	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.09%	3.79%	-0.70%
Volatility (6M) Calculated over the trailing 6-month period	21.19%	10.68%	+10.51%
Volatility (1Y) Calculated over the trailing 1-year period	27.61%	14.31%	+13.30%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	33.62%	17.11%	+16.51%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	32.70%	19.43%	+13.27%

Dividends

BPTIX vs. BRK-B - Dividend Comparison

BPTIX's dividend yield for the trailing twelve months is around 3.17%, while BRK-B has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BPTIX Baron Partners Fund Institutional Class	3.17%	3.21%	0.73%	0.00%	3.07%	7.46%	3.57%	1.27%	0.00%	0.00%	0.00%	0.62%
BRK-B Berkshire Hathaway Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both BPTIX and BRK-B in my portfolio?

BPTIX and BRK-B have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BPTIX or BRK-B?

BRK-B has higher volatility (3.79%) compared to BPTIX (3.09%). In terms of maximum drawdown, BPTIX dropped -51.26% vs BRK-B's -53.86%.

Which has better risk-adjusted returns?

BPTIX currently has the higher Sharpe Ratio (1.23 vs -0.44), 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.