BAFMX vs. FSMAX

Last updated Jun 4, 2026

BAFMX (Brown Advisory Mid-Cap Growth Fund) and FSMAX (Fidelity Extended Market Index Fund) are both Mid Cap Growth Equities funds. Their correlation of 0.90 suggests significant overlap in exposure. BAFMX charges 0.79%/yr vs 0.04%/yr for FSMAX.

Performance

BAFMX vs. FSMAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Brown Advisory Mid-Cap Growth Fund (BAFMX) and Fidelity Extended Market Index Fund (FSMAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

BAFMX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

FSMAX

• 1D: 1.07%
• 1M: 5.80%
• YTD: 14.89%
• 6M: 13.61%
• 1Y: 30.08%
• 3Y*: 20.13%
• 5Y*: 6.91%
• 10Y*: 12.17%

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

BAFMX vs. FSMAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
BAFMX Brown Advisory Mid-Cap Growth Fund	-2.65%	3.70%	15.29%	23.21%	-28.12%	6.32%	32.56%	38.63%	-8.59%
FSMAX Fidelity Extended Market Index Fund	14.89%	11.40%	16.99%	25.36%	-26.44%	12.41%	32.28%	28.01%	-9.84%

Correlation

The correlation between BAFMX and FSMAX is 0.82, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.86
Correlation (5Y) Calculated over the trailing 5-year period	0.90
Correlation (All Time) Calculated using the full available price history since Nov 19, 2018	0.90

The correlation between BAFMX and FSMAX has been stable across timeframes, ranging from 0.82 to 0.90 - a consistent structural relationship.

Return for Risk

BAFMX vs. FSMAX — Risk / Return Rank

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

FSMAX

FSMAX Risk / Return Rank: 47
FSMAX Sharpe Ratio Rank: 41
FSMAX Sortino Ratio Rank: 39
FSMAX Omega Ratio Rank: 37
FSMAX Calmar Ratio Rank: 66
FSMAX Martin Ratio Rank: 54

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.

BAFMX vs. FSMAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Brown Advisory Mid-Cap Growth Fund (BAFMX) and Fidelity Extended Market Index Fund (FSMAX). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	BAFMX	FSMAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	1.87	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.31	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.40	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.46	—

Drawdowns

Drawdown Indicators

	BAFMX	FSMAX	Difference
Max Drawdown Largest peak-to-trough decline	—	-50.55%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-10.26%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-26.82%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-36.31%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-50.55%	—
Current Drawdown Current decline from peak	—	0.00%	—
Average Drawdown Average peak-to-trough decline	—	-12.17%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	2.90%	—

Volatility

Volatility by Period

	BAFMX	FSMAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	4.70%	—
Volatility (6M) Calculated over the trailing 6-month period	—	12.46%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	17.17%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	22.33%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	30.24%	—

BAFMX vs. FSMAX - Expense Ratio Comparison

BAFMX has a 0.79% expense ratio, which is higher than FSMAX's 0.04% expense ratio.

Dividends

BAFMX vs. FSMAX - Dividend Comparison

BAFMX's dividend yield for the trailing twelve months is around 75.00%, more than FSMAX's 0.50% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BAFMX Brown Advisory Mid-Cap Growth Fund	75.00%	73.01%	0.00%	0.00%	6.85%	9.92%	0.00%	0.52%	1.14%	0.00%	0.00%	0.00%
FSMAX Fidelity Extended Market Index Fund	0.50%	0.57%	0.48%	1.17%	1.90%	7.49%	2.14%	4.30%	6.09%	5.44%	4.85%	6.34%

Frequently Asked Questions

Can I hold both BAFMX and FSMAX in my portfolio?

BAFMX and FSMAX have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.