BIAYX vs. BIASX

Last updated Jun 5, 2026

BIAYX (Brown Advisory Sustainable Small-Cap Core Fund) and BIASX (Brown Advisory Small-Cap Growth Fund) are both mutual funds - BIAYX is a Small Cap Blend Equities fund managed by Brown Advisory Funds, while BIASX is a Small Cap Growth Equities fund managed by Brown Advisory Funds. Over the past 3 years, BIAYX returned 14.03%/yr vs 7.62%/yr for BIASX. With a 0.96 correlation, they move nearly in lockstep. BIAYX charges 1.08%/yr vs 1.11%/yr for BIASX.

Performance

BIAYX vs. BIASX - 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 Small-Cap Growth Fund (BIASX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BIAYX achieves a 12.56% return, which is significantly higher than BIASX's 10.50% return.

BIAYX

• 1D: -0.91%
• 1M: 3.71%
• YTD: 12.56%
• 6M: 13.17%
• 1Y: 26.03%
• 3Y*: 14.03%
• 5Y*: —
• 10Y*: —

BIASX

• 1D: -0.19%
• 1M: 3.37%
• YTD: 10.50%
• 6M: 9.88%
• 1Y: 15.66%
• 3Y*: 7.62%
• 5Y*: 1.35%
• 10Y*: 9.19%

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

BIAYX vs. BIASX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
BIAYX Brown Advisory Sustainable Small-Cap Core Fund	12.56%	9.44%	6.80%	17.39%	-20.21%	1.09%
BIASX Brown Advisory Small-Cap Growth Fund	10.50%	2.29%	4.29%	12.43%	-20.27%	0.82%

Correlation

The correlation between BIAYX and BIASX is 0.93, 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	0.93
Correlation (3Y) Calculated over the trailing 3-year period	0.95
Correlation (All Time) Calculated using the full available price history since Oct 11, 2021	0.96

The correlation between BIAYX and BIASX has been stable across timeframes, ranging from 0.93 to 0.96 - a consistent structural relationship.

Return for Risk

BIAYX vs. BIASX — Risk / Return Rank

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

BIAYX

BIAYX Risk / Return Rank: 34
BIAYX Sharpe Ratio Rank: 31
BIAYX Sortino Ratio Rank: 33
BIAYX Omega Ratio Rank: 28
BIAYX Calmar Ratio Rank: 42
BIAYX Martin Ratio Rank: 38

BIASX

BIASX Risk / Return Rank: 16
BIASX Sharpe Ratio Rank: 13
BIASX Sortino Ratio Rank: 14
BIASX Omega Ratio Rank: 12
BIASX Calmar Ratio Rank: 18
BIASX Martin Ratio Rank: 21

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. BIASX - 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 Small-Cap Growth Fund (BIASX). 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.

	BIAYX	BIASX	Difference
Sharpe ratio: Return per unit of total volatility	1.52	0.97	+0.55
Sortino ratio: Return per unit of downside risk	2.28	1.51	+0.77
Omega ratio: Gain probability vs. loss probability	1.26	1.17	+0.10
Calmar ratio: Return relative to maximum drawdown	2.36	1.50	+0.86
Martin ratio: Return relative to average drawdown	8.19	5.34	+2.85
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BIAYX vs. BIASX - Sharpe Ratio Comparison

The current BIAYX Sharpe Ratio is 1.52, which is higher than the BIASX Sharpe Ratio of 0.97. The chart below compares the historical Sharpe Ratios of BIAYX and BIASX, 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

	BIAYX	BIASX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.52	0.97	+0.55
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.07	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.46	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.24	0.30	-0.07

Drawdowns

BIAYX vs. BIASX - Drawdown Comparison

The maximum BIAYX drawdown since its inception was -31.81%, smaller than the maximum BIASX drawdown of -73.26%. Use the drawdown chart below to compare losses from any high point for BIAYX and BIASX.

Drawdown Indicators

	BIAYX	BIASX	Difference
Max Drawdown Largest peak-to-trough decline	-31.81%	-73.26%	+41.45%
Max Drawdown (1Y) Largest decline over 1 year	-11.02%	-10.93%	-0.09%
Max Drawdown (3Y) Largest decline over 3 years	-23.51%	-24.98%	+1.47%
Max Drawdown (5Y) Largest decline over 5 years	—	-30.61%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-38.04%	—
Current Drawdown Current decline from peak	-0.91%	-0.52%	-0.39%
Average Drawdown Average peak-to-trough decline	-12.80%	-23.48%	+10.68%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.17%	3.07%	+0.10%

Volatility

BIAYX vs. BIASX - Volatility Comparison

Brown Advisory Sustainable Small-Cap Core Fund (BIAYX) has a higher volatility of 5.17% compared to Brown Advisory Small-Cap Growth Fund (BIASX) at 4.56%. This indicates that BIAYX's price experiences larger fluctuations and is considered to be riskier than BIASX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BIAYX	BIASX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.17%	4.56%	+0.61%
Volatility (6M) Calculated over the trailing 6-month period	12.40%	12.36%	+0.04%
Volatility (1Y) Calculated over the trailing 1-year period	17.18%	17.08%	+0.10%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.69%	19.78%	+0.91%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.69%	19.94%	+0.75%

BIAYX vs. BIASX - Expense Ratio Comparison

BIAYX has a 1.08% expense ratio, which is lower than BIASX's 1.11% expense ratio.

Dividends

BIAYX vs. BIASX - Dividend Comparison

BIAYX's dividend yield for the trailing twelve months is around 3.88%, less than BIASX's 17.76% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BIASX Brown Advisory Small-Cap Growth Fund	17.76%	19.62%	5.78%	0.00%	8.22%	13.22%	0.78%	4.00%	5.17%	1.69%	3.50%	16.77%
BIAYX Brown Advisory Sustainable Small-Cap Core Fund	3.88%	4.37%	0.73%	0.01%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both BIAYX and BIASX in my portfolio?

With a correlation of 0.93, BIAYX and BIASX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, BIAYX or BIASX?

BIAYX has higher volatility (5.17%) compared to BIASX (4.56%). In terms of maximum drawdown, BIAYX dropped -31.81% vs BIASX's -73.26%.

Which has better risk-adjusted returns?

BIAYX currently has the higher Sharpe Ratio (1.52 vs 0.97), 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.