BIAYX vs. BAFMX

Last updated Jun 23, 2026

BIAYX (Brown Advisory Sustainable Small-Cap Core Fund) and BAFMX (Brown Advisory Mid-Cap Growth Fund) are both mutual funds - BIAYX is a Small Cap Blend Equities fund managed by Brown Advisory Funds, while BAFMX is a Mid Cap Growth Equities fund managed by Brown Advisory Funds. Their correlation of 0.85 suggests significant overlap in exposure. BIAYX charges 1.08%/yr vs 0.79%/yr for BAFMX.

Performance

BIAYX vs. BAFMX - Performance Comparison

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

Returns By Period

BIAYX

• 1D: 1.89%
• 1M: 4.47%
• YTD: 16.03%
• 6M: 13.89%
• 1Y: 29.92%
• 3Y*: 14.30%
• 5Y*: —
• 10Y*: —

BAFMX

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

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

BIAYX vs. BAFMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
BIAYX Brown Advisory Sustainable Small-Cap Core Fund	16.03%	9.44%	6.80%	17.39%	-20.21%	1.09%
BAFMX Brown Advisory Mid-Cap Growth Fund	-2.65%	3.70%	15.29%	23.21%	-28.12%	-2.28%

Correlation

The correlation between BIAYX and BAFMX is 0.70, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.70
Correlation (3Y) Calculated over the trailing 3-year period	0.79
Correlation (All Time) Calculated using the full available price history since Oct 8, 2021	0.85

The correlation between BIAYX and BAFMX shifts across timeframes, from 0.70 (1 year) to 0.85 (all time), reflecting how their relationship changes across market environments.

Return for Risk

BIAYX vs. BAFMX — Risk / Return Rank

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

BIAYX

BIAYX Risk / Return Rank: 45
BIAYX Sharpe Ratio Rank: 40
BIAYX Sortino Ratio Rank: 43
BIAYX Omega Ratio Rank: 36
BIAYX Calmar Ratio Rank: 56
BIAYX Martin Ratio Rank: 49

BAFMX

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

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.

BIAYX vs. BAFMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Brown Advisory Sustainable Small-Cap Core Fund (BIAYX) and Brown Advisory Mid-Cap Growth Fund (BAFMX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	BIAYX	BAFMX	Difference
Sharpe ratio: Return per unit of total volatility	1.72	—	—
Sortino ratio: Return per unit of downside risk	2.54	—	—
Omega ratio: Gain probability vs. loss probability	1.30	—	—
Calmar ratio: Return relative to maximum drawdown	2.73	—	—
Martin ratio: Return relative to average drawdown	9.49	—	—

Drawdowns

Drawdown Indicators

	BIAYX	BAFMX	Difference
Max Drawdown Largest peak-to-trough decline	-31.81%	—	—
Max Drawdown (1Y) Largest decline over 1 year	-11.02%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-23.51%	—	—
Current Drawdown Current decline from peak	0.00%	—	—
Average Drawdown Average peak-to-trough decline	-12.67%	—	—
Ulcer Index Depth and duration of drawdowns from previous peaks	3.16%	—	—

Volatility

Volatility by Period

	BIAYX	BAFMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.81%	—	—
Volatility (6M) Calculated over the trailing 6-month period	12.87%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	17.52%	—	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.70%	—	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.70%	—	—

BIAYX vs. BAFMX - Expense Ratio Comparison

BIAYX has a 1.08% expense ratio, which is higher than BAFMX's 0.79% expense ratio.

Dividends

BIAYX vs. BAFMX - Dividend Comparison

BIAYX's dividend yield for the trailing twelve months is around 3.77%, less than BAFMX's 75.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
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%
BIAYX Brown Advisory Sustainable Small-Cap Core Fund	3.77%	4.37%	0.73%	0.01%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both BIAYX and BAFMX in my portfolio?

BIAYX and BAFMX have a correlation of 0.70, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.