BRK-B vs. FDIVX

Last updated Jun 9, 2026

BRK-B (Berkshire Hathaway Inc.) is a stock, while FDIVX (Fidelity Diversified International Fund) is Foreign Large Cap Equities fund managed by Fidelity. Over the past 10 years, BRK-B returned 13.14%/yr vs 8.80%/yr for FDIVX. At a 0.41 correlation, their price movements are largely independent.

Performance

BRK-B vs. FDIVX - Performance Comparison

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

Returns By Period

In the year-to-date period, BRK-B achieves a -3.11% return, which is significantly lower than FDIVX's 7.71% return. Over the past 10 years, BRK-B has outperformed FDIVX with an annualized return of 13.14%, while FDIVX has yielded a comparatively lower 8.80% annualized return.

BRK-B

• 1D: -0.23%
• 1M: 2.32%
• YTD: -3.11%
• 6M: -2.06%
• 1Y: -1.32%
• 3Y*: 13.25%
• 5Y*: 11.03%
• 10Y*: 13.14%

FDIVX

• 1D: -3.73%
• 1M: -1.89%
• YTD: 7.71%
• 6M: 9.86%
• 1Y: 17.46%
• 3Y*: 15.46%
• 5Y*: 6.71%
• 10Y*: 8.80%

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

BRK-B vs. FDIVX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BRK-B Berkshire Hathaway Inc.	-3.11%	10.89%	27.09%	15.46%	3.31%	28.95%	2.37%	10.93%	3.01%	21.62%
FDIVX Fidelity Diversified International Fund	7.71%	27.75%	6.54%	17.74%	-23.86%	12.79%	18.91%	29.72%	-15.31%	25.31%

Correlation

The correlation between BRK-B and FDIVX is 0.11, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.11
Correlation (3Y) Calculated over the trailing 3-year period	0.28
Correlation (5Y) Calculated over the trailing 5-year period	0.42
Correlation (10Y) Calculated over the trailing 10-year period	0.48
Correlation (All Time) Calculated using the full available price history since May 10, 1996	0.41

Over the past year, the correlation between BRK-B and FDIVX has dropped to 0.11 - well below their long-term average of 0.41, suggesting their price drivers have been diverging.

Return for Risk

BRK-B vs. FDIVX — Risk / Return Rank

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

BRK-B

BRK-B Risk / Return Rank: 35
BRK-B Sharpe Ratio Rank: 38
BRK-B Sortino Ratio Rank: 30
BRK-B Omega Ratio Rank: 30
BRK-B Calmar Ratio Rank: 38
BRK-B Martin Ratio Rank: 37

FDIVX

FDIVX Risk / Return Rank: 18
FDIVX Sharpe Ratio Rank: 15
FDIVX Sortino Ratio Rank: 15
FDIVX Omega Ratio Rank: 16
FDIVX Calmar Ratio Rank: 19
FDIVX Martin Ratio Rank: 24

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.

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

This table presents a comparison of risk-adjusted performance metrics for Berkshire Hathaway Inc. (BRK-B) and Fidelity Diversified International Fund (FDIVX). 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.

	BRK-B	FDIVX	Difference
Sharpe ratio: Return per unit of total volatility	-0.09	1.04	-1.13
Sortino ratio: Return per unit of downside risk	-0.03	1.54	-1.56
Omega ratio: Gain probability vs. loss probability	1.00	1.19	-0.20
Calmar ratio: Return relative to maximum drawdown	-0.14	1.45	-1.59
Martin ratio: Return relative to average drawdown	-0.30	5.65	-5.95
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BRK-B vs. FDIVX - Sharpe Ratio Comparison

The current BRK-B Sharpe Ratio is -0.09, which is lower than the FDIVX Sharpe Ratio of 1.04. The chart below compares the historical Sharpe Ratios of BRK-B and FDIVX, 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

	BRK-B	FDIVX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.09	1.04	-1.13
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.65	0.39	+0.26
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.68	0.52	+0.16
Sharpe Ratio (All Time) Calculated using the full available price history	0.48	0.49	-0.01

Drawdowns

BRK-B vs. FDIVX - Drawdown Comparison

The maximum BRK-B drawdown since its inception was -53.86%, smaller than the maximum FDIVX drawdown of -60.61%. Use the drawdown chart below to compare losses from any high point for BRK-B and FDIVX.

Drawdown Indicators

	BRK-B	FDIVX	Difference
Max Drawdown Largest peak-to-trough decline	-53.86%	-60.61%	+6.75%
Max Drawdown (1Y) Largest decline over 1 year	-9.42%	-12.38%	+2.96%
Max Drawdown (3Y) Largest decline over 3 years	-14.95%	-14.63%	-0.32%
Max Drawdown (5Y) Largest decline over 5 years	-26.58%	-35.60%	+9.02%
Max Drawdown (10Y) Largest decline over 10 years	-29.57%	-35.60%	+6.03%
Current Drawdown Current decline from peak	-9.78%	-3.73%	-6.05%
Average Drawdown Average peak-to-trough decline	-11.07%	-11.67%	+0.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.49%	3.17%	+1.32%

Volatility

BRK-B vs. FDIVX - Volatility Comparison

The current volatility for Berkshire Hathaway Inc. (BRK-B) is 3.98%, while Fidelity Diversified International Fund (FDIVX) has a volatility of 6.31%. This indicates that BRK-B experiences smaller price fluctuations and is considered to be less risky than FDIVX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BRK-B	FDIVX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.98%	6.31%	-2.33%
Volatility (6M) Calculated over the trailing 6-month period	10.87%	14.73%	-3.86%
Volatility (1Y) Calculated over the trailing 1-year period	14.38%	17.24%	-2.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.13%	17.19%	-0.06%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.44%	17.02%	+2.42%

Dividends

BRK-B vs. FDIVX - Dividend Comparison

BRK-B has not paid dividends to shareholders, while FDIVX's dividend yield for the trailing twelve months is around 9.92%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
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%
FDIVX Fidelity Diversified International Fund	9.92%	10.69%	3.93%	4.29%	1.34%	10.59%	0.97%	1.32%	7.32%	4.22%	1.36%	0.46%

Frequently Asked Questions

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

BRK-B and FDIVX have a correlation of 0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BRK-B or FDIVX?

FDIVX has higher volatility (6.31%) compared to BRK-B (3.98%). In terms of maximum drawdown, BRK-B dropped -53.86% vs FDIVX's -60.61%.

Which has better risk-adjusted returns?

FDIVX currently has the higher Sharpe Ratio (1.04 vs -0.09), 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.