BBIIX vs. BBMIX

Last updated Jun 3, 2026

BBIIX (BBH Intermediate Municipal Bond Fund) and BBMIX (BBH Select Series - Mid Cap Fund) are both mutual funds - BBIIX is a Municipal Bonds fund managed by BBH, while BBMIX is a Mid Cap Growth Equities fund managed by BBH. Over the past 5 years, BBIIX returned 1.62%/yr vs 3.07%/yr for BBMIX. At a 0.10 correlation, their price movements are largely independent. BBIIX charges 0.46%/yr vs 0.90%/yr for BBMIX.

Performance

BBIIX vs. BBMIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BBH Intermediate Municipal Bond Fund (BBIIX) and BBH Select Series - Mid Cap Fund (BBMIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BBIIX achieves a 1.07% return, which is significantly lower than BBMIX's 2.86% return.

BBIIX

• 1D: 0.10%
• 1M: 0.00%
• YTD: 1.07%
• 6M: 1.59%
• 1Y: 6.22%
• 3Y*: 4.43%
• 5Y*: 1.62%
• 10Y*: 2.61%

BBMIX

• 1D: 0.00%
• 1M: 0.00%
• YTD: 2.86%
• 6M: 2.86%
• 1Y: 2.22%
• 3Y*: 6.69%
• 5Y*: 3.07%
• 10Y*: —

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

BBIIX vs. BBMIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
BBIIX BBH Intermediate Municipal Bond Fund	1.07%	5.45%	2.43%	6.09%	-6.45%	0.31%
BBMIX BBH Select Series - Mid Cap Fund	2.86%	-6.45%	11.41%	26.01%	-24.76%	13.50%

Correlation

The correlation between BBIIX and BBMIX is 0.10, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.10
Correlation (3Y) Calculated over the trailing 3-year period	0.10
Correlation (5Y) Calculated over the trailing 5-year period	0.10
Correlation (All Time) Calculated using the full available price history since May 25, 2021	0.10

Return for Risk

BBIIX vs. BBMIX — Risk / Return Rank

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

BBIIX

BBIIX Risk / Return Rank: 72
BBIIX Sharpe Ratio Rank: 87
BBIIX Sortino Ratio Rank: 92
BBIIX Omega Ratio Rank: 95
BBIIX Calmar Ratio Rank: 45
BBIIX Martin Ratio Rank: 41

BBMIX

BBMIX Risk / Return Rank: 3
BBMIX Sharpe Ratio Rank: 3
BBMIX Sortino Ratio Rank: 3
BBMIX Omega Ratio Rank: 4
BBMIX Calmar Ratio Rank: 3
BBMIX Martin Ratio Rank: 3

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.

BBIIX vs. BBMIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BBH Intermediate Municipal Bond Fund (BBIIX) and BBH Select Series - Mid Cap Fund (BBMIX). 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.

	BBIIX	BBMIX	Difference
Sharpe ratio Return per unit of total volatility	2.84	0.18	+2.65
Sortino ratio Return per unit of downside risk	4.55	0.35	+4.20
Omega ratio Gain probability vs. loss probability	1.81	1.05	+0.76
Calmar ratio Return relative to maximum drawdown	2.57	0.02	+2.55
Martin ratio Return relative to average drawdown	8.89	0.06	+8.83
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BBIIX vs. BBMIX - Sharpe Ratio Comparison

The current BBIIX Sharpe Ratio is 2.84, which is higher than the BBMIX Sharpe Ratio of 0.18. The chart below compares the historical Sharpe Ratios of BBIIX and BBMIX, 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

	BBIIX	BBMIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.84	0.18	+2.65
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.53	0.16	+0.37
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.81	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.89	0.15	+0.74

Drawdowns

BBIIX vs. BBMIX - Drawdown Comparison

The maximum BBIIX drawdown since its inception was -11.53%, smaller than the maximum BBMIX drawdown of -28.90%. Use the drawdown chart below to compare losses from any high point for BBIIX and BBMIX.

Drawdown Indicators

	BBIIX	BBMIX	Difference
Max Drawdown Largest peak-to-trough decline	-11.53%	-28.90%	+17.37%
Max Drawdown (1Y) Largest decline over 1 year	-2.46%	-8.89%	+6.43%
Max Drawdown (3Y) Largest decline over 3 years	-3.92%	-23.79%	+19.87%
Max Drawdown (5Y) Largest decline over 5 years	-11.53%	-28.90%	+17.37%
Max Drawdown (10Y) Largest decline over 10 years	-11.53%	—	—
Current Drawdown Current decline from peak	-1.02%	-11.28%	+10.26%
Average Drawdown Average peak-to-trough decline	-1.69%	-10.51%	+8.82%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.71%	5.67%	-4.96%

Volatility

BBIIX vs. BBMIX - Volatility Comparison

BBH Intermediate Municipal Bond Fund (BBIIX) has a higher volatility of 0.74% compared to BBH Select Series - Mid Cap Fund (BBMIX) at 0.00%. This indicates that BBIIX's price experiences larger fluctuations and is considered to be riskier than BBMIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BBIIX	BBMIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.74%	0.00%	+0.74%
Volatility (6M) Calculated over the trailing 6-month period	1.71%	6.37%	-4.66%
Volatility (1Y) Calculated over the trailing 1-year period	2.17%	11.64%	-9.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.06%	19.73%	-16.67%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.25%	19.69%	-16.44%

BBIIX vs. BBMIX - Expense Ratio Comparison

BBIIX has a 0.46% expense ratio, which is lower than BBMIX's 0.90% expense ratio.

Dividends

BBIIX vs. BBMIX - Dividend Comparison

BBIIX's dividend yield for the trailing twelve months is around 3.28%, while BBMIX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BBIIX BBH Intermediate Municipal Bond Fund	3.28%	3.60%	3.67%	3.09%	1.52%	1.20%	1.64%	2.69%	2.20%	3.64%	3.31%	2.00%
BBMIX BBH Select Series - Mid Cap Fund	0.00%	0.00%	0.32%	0.10%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both BBIIX and BBMIX in my portfolio?

BBIIX and BBMIX have a correlation of 0.10, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BBIIX or BBMIX?

BBIIX has higher volatility (0.74%) compared to BBMIX (0.00%). In terms of maximum drawdown, BBIIX dropped -11.53% vs BBMIX's -28.90%.

Which has better risk-adjusted returns?

BBIIX currently has the higher Sharpe Ratio (2.84 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.