FDG vs. BRK-B

Last updated Apr 1, 2026

Compare and contrast key facts about American Century Focused Dynamic Growth ETF (FDG) and Berkshire Hathaway Inc. (BRK-B).

FDG is an actively managed fund by American Century. It was launched on Mar 31, 2020.

Performance

FDG vs. BRK-B - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Focused Dynamic Growth ETF (FDG) and Berkshire Hathaway Inc. (BRK-B). The values are adjusted to include any dividend payments, if applicable.

FDG vs. BRK-B - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
FDG American Century Focused Dynamic Growth ETF	-10.09%	22.13%	45.89%	37.22%	-35.74%	8.52%	93.61%
BRK-B Berkshire Hathaway Inc.	-4.67%	10.89%	27.09%	15.46%	3.31%	28.95%	29.01%

Returns By Period

In the year-to-date period, FDG achieves a -10.09% return, which is significantly lower than BRK-B's -4.67% return.

FDG

• 1D: 4.35%
• 1M: -4.42%
• YTD: -10.09%
• 6M: -5.30%
• 1Y: 25.52%
• 3Y*: 24.88%
• 5Y*: 8.73%
• 10Y*: —

BRK-B

• 1D: 0.96%
• 1M: -5.10%
• YTD: -4.67%
• 6M: -4.68%
• 1Y: -10.02%
• 3Y*: 15.78%
• 5Y*: 13.16%
• 10Y*: 12.79%

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

Return for Risk

FDG vs. BRK-B — Risk / Return Rank

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

FDG

FDG Risk / Return Rank: 64
FDG Sharpe Ratio Rank: 63
FDG Sortino Ratio Rank: 69
FDG Omega Ratio Rank: 64
FDG Calmar Ratio Rank: 65
FDG Martin Ratio Rank: 60

BRK-B

BRK-B Risk / Return Rank: 20
BRK-B Sharpe Ratio Rank: 18
BRK-B Sortino Ratio Rank: 17
BRK-B Omega Ratio Rank: 17
BRK-B Calmar Ratio Rank: 22
BRK-B 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.

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

This table presents a comparison of risk-adjusted performance metrics for American Century Focused Dynamic Growth ETF (FDG) 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.

	FDG	BRK-B	Difference
Sharpe ratio Return per unit of total volatility	1.08	-0.55	+1.63
Sortino ratio Return per unit of downside risk	1.67	-0.63	+2.30
Omega ratio Gain probability vs. loss probability	1.23	0.91	+0.32
Calmar ratio Return relative to maximum drawdown	1.58	-0.60	+2.18
Martin ratio Return relative to average drawdown	5.57	-1.03	+6.60
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FDG vs. BRK-B - Sharpe Ratio Comparison

The current FDG Sharpe Ratio is 1.08, which is higher than the BRK-B Sharpe Ratio of -0.55. The chart below compares the historical Sharpe Ratios of FDG and BRK-B, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	FDG	BRK-B	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.08	-0.55	+1.63
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.36	0.77	-0.41
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.66	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.80	0.48	+0.32

Correlation

The correlation between FDG and BRK-B is 0.31, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

FDG vs. BRK-B - Dividend Comparison

Neither FDG nor BRK-B has paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020
FDG American Century Focused Dynamic Growth ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.01%
BRK-B Berkshire Hathaway Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

FDG vs. BRK-B - Drawdown Comparison

The maximum FDG drawdown since its inception was -43.69%, smaller than the maximum BRK-B drawdown of -53.86%. Use the drawdown chart below to compare losses from any high point for FDG and BRK-B.

Drawdown Indicators

	FDG	BRK-B	Difference
Max Drawdown Largest peak-to-trough decline	-43.69%	-53.86%	+10.17%
Max Drawdown (1Y) Largest decline over 1 year	-15.71%	-14.95%	-0.76%
Max Drawdown (5Y) Largest decline over 5 years	-43.69%	-26.58%	-17.11%
Max Drawdown (10Y) Largest decline over 10 years	—	-29.57%	—
Current Drawdown Current decline from peak	-12.04%	-11.23%	-0.81%
Average Drawdown Average peak-to-trough decline	-13.75%	-11.07%	-2.68%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.45%	8.69%	-4.24%

Volatility

FDG vs. BRK-B - Volatility Comparison

American Century Focused Dynamic Growth ETF (FDG) has a higher volatility of 7.98% compared to Berkshire Hathaway Inc. (BRK-B) at 4.34%. This indicates that FDG's price experiences larger fluctuations and is considered to be riskier than BRK-B based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FDG	BRK-B	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.98%	4.34%	+3.64%
Volatility (6M) Calculated over the trailing 6-month period	14.04%	11.16%	+2.88%
Volatility (1Y) Calculated over the trailing 1-year period	23.85%	18.34%	+5.51%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.68%	17.21%	+7.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.05%	19.45%	+5.60%