MAGSX vs. BRK-B

Last updated Jun 5, 2026

MAGSX (Madison Aggressive Allocation Fund) is Diversified Portfolio fund managed by Madison Funds, while BRK-B (Berkshire Hathaway Inc.) is a stock. Over the past 10 years, MAGSX returned 7.63%/yr vs 12.93%/yr for BRK-B. A 0.60 correlation means they provide meaningful diversification when combined.

Performance

MAGSX vs. BRK-B - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Madison Aggressive Allocation Fund (MAGSX) 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, MAGSX achieves a 11.14% return, which is significantly higher than BRK-B's -4.78% return. Over the past 10 years, MAGSX has underperformed BRK-B with an annualized return of 7.63%, while BRK-B has yielded a comparatively higher 12.93% annualized return.

MAGSX

• 1D: -0.59%
• 1M: 3.56%
• YTD: 11.14%
• 6M: 11.81%
• 1Y: 21.06%
• 3Y*: 12.58%
• 5Y*: 5.15%
• 10Y*: 7.63%

BRK-B

• 1D: 0.69%
• 1M: 2.82%
• YTD: -4.78%
• 6M: -4.89%
• 1Y: -2.52%
• 3Y*: 13.36%
• 5Y*: 10.35%
• 10Y*: 12.93%

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

MAGSX vs. BRK-B - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MAGSX Madison Aggressive Allocation Fund	11.14%	12.48%	6.46%	12.32%	-15.38%	9.50%	9.65%	19.21%	-6.59%	18.04%
BRK-B Berkshire Hathaway Inc.	-4.78%	10.89%	27.09%	15.46%	3.31%	28.95%	2.37%	10.93%	3.01%	21.62%

Correlation

The correlation between MAGSX and BRK-B is 0.20, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.20
Correlation (3Y) Calculated over the trailing 3-year period	0.39
Correlation (5Y) Calculated over the trailing 5-year period	0.54
Correlation (10Y) Calculated over the trailing 10-year period	0.59
Correlation (All Time) Calculated using the full available price history since Jul 5, 2006	0.60

Over the past year, the correlation between MAGSX and BRK-B has dropped to 0.20 - well below their long-term average of 0.60, suggesting their price drivers have been diverging.

Return for Risk

MAGSX vs. BRK-B — Risk / Return Rank

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

MAGSX

MAGSX Risk / Return Rank: 47
MAGSX Sharpe Ratio Rank: 47
MAGSX Sortino Ratio Rank: 47
MAGSX Omega Ratio Rank: 45
MAGSX Calmar Ratio Rank: 43
MAGSX Martin Ratio Rank: 52

BRK-B

BRK-B Risk / Return Rank: 31
BRK-B Sharpe Ratio Rank: 34
BRK-B Sortino Ratio Rank: 28
BRK-B Omega Ratio Rank: 27
BRK-B Calmar Ratio Rank: 33
BRK-B Martin Ratio Rank: 32

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.

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

This table presents a comparison of risk-adjusted performance metrics for Madison Aggressive Allocation Fund (MAGSX) 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.

	MAGSX	BRK-B	Difference
Sharpe ratio: Return per unit of total volatility	2.02	-0.18	+2.20
Sortino ratio: Return per unit of downside risk	2.91	-0.15	+3.05
Omega ratio: Gain probability vs. loss probability	1.36	0.98	+0.38
Calmar ratio: Return relative to maximum drawdown	2.49	-0.27	+2.75
Martin ratio: Return relative to average drawdown	10.56	-0.57	+11.12
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MAGSX vs. BRK-B - Sharpe Ratio Comparison

The current MAGSX Sharpe Ratio is 2.02, which is higher than the BRK-B Sharpe Ratio of -0.18. The chart below compares the historical Sharpe Ratios of MAGSX 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

	MAGSX	BRK-B	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.02	-0.18	+2.20
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.42	0.61	-0.18
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.59	0.67	-0.08
Sharpe Ratio (All Time) Calculated using the full available price history	0.36	0.48	-0.12

Drawdowns

MAGSX vs. BRK-B - Drawdown Comparison

The maximum MAGSX drawdown since its inception was -56.06%, roughly equal to the maximum BRK-B drawdown of -53.86%. Use the drawdown chart below to compare losses from any high point for MAGSX and BRK-B.

Drawdown Indicators

	MAGSX	BRK-B	Difference
Max Drawdown Largest peak-to-trough decline	-56.06%	-53.86%	-2.20%
Max Drawdown (1Y) Largest decline over 1 year	-8.63%	-9.42%	+0.79%
Max Drawdown (3Y) Largest decline over 3 years	-15.35%	-14.95%	-0.40%
Max Drawdown (5Y) Largest decline over 5 years	-21.13%	-26.58%	+5.45%
Max Drawdown (10Y) Largest decline over 10 years	-23.20%	-29.57%	+6.37%
Current Drawdown Current decline from peak	-0.59%	-11.33%	+10.74%
Average Drawdown Average peak-to-trough decline	-9.47%	-11.07%	+1.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.03%	4.46%	-2.43%

Volatility

MAGSX vs. BRK-B - Volatility Comparison

The current volatility for Madison Aggressive Allocation Fund (MAGSX) is 3.34%, while Berkshire Hathaway Inc. (BRK-B) has a volatility of 3.72%. This indicates that MAGSX 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

	MAGSX	BRK-B	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.34%	3.72%	-0.38%
Volatility (6M) Calculated over the trailing 6-month period	8.59%	10.70%	-2.11%
Volatility (1Y) Calculated over the trailing 1-year period	10.64%	14.32%	-3.68%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.18%	17.11%	-4.93%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	13.07%	19.43%	-6.36%

Dividends

MAGSX vs. BRK-B - Dividend Comparison

MAGSX's dividend yield for the trailing twelve months is around 5.55%, while BRK-B has not paid dividends to shareholders.

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%
MAGSX Madison Aggressive Allocation Fund	5.55%	6.17%	2.02%	1.89%	1.26%	9.97%	8.66%	5.42%	10.79%	5.89%	3.82%	9.57%

Frequently Asked Questions

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

MAGSX and BRK-B have a correlation of 0.20, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MAGSX or BRK-B?

BRK-B has higher volatility (3.72%) compared to MAGSX (3.34%). In terms of maximum drawdown, MAGSX dropped -56.06% vs BRK-B's -53.86%.

Which has better risk-adjusted returns?

MAGSX currently has the higher Sharpe Ratio (2.02 vs -0.18), 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.