VOX vs. BAMU

Last updated Jun 21, 2026

VOX (Vanguard Communication Services ETF) and BAMU (Brookstone Ultra-Short Bond ETF) are both exchange-traded funds - VOX is a Communications Equities fund tracking the MSCI US Investable Market Communication Services 25/50 Index, while BAMU is a Ultrashort Bond fund actively managed by Brookstone. VOX is passively managed, while BAMU is actively managed. Over the past year, VOX returned 16.56% vs 2.89% for BAMU. At a 0.03 correlation, their price movements are largely independent. VOX charges 0.09%/yr vs 1.09%/yr for BAMU.

Performance

VOX vs. BAMU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Communication Services ETF (VOX) and Brookstone Ultra-Short Bond ETF (BAMU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VOX achieves a -3.26% return, which is significantly lower than BAMU's 1.16% return.

VOX

• 1D: 0.73%
• 1M: -4.60%
• YTD: -3.26%
• 6M: -2.24%
• 1Y: 16.56%
• 3Y*: 22.04%
• 5Y*: 7.14%
• 10Y*: 8.67%

BAMU

• 1D: 0.00%
• 1M: 0.18%
• YTD: 1.16%
• 6M: 1.27%
• 1Y: 2.89%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

VOX vs. BAMU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
VOX Vanguard Communication Services ETF	-3.26%	26.27%	33.12%	13.56%
BAMU Brookstone Ultra-Short Bond ETF	1.16%	3.21%	4.14%	1.20%

Correlation

The correlation between VOX and BAMU is -0.14, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.14
Correlation (All Time) Calculated using the full available price history since Sep 27, 2023	0.03

The correlation between VOX and BAMU shifts across timeframes, from -0.14 (1 year) to 0.03 (all time), reflecting how their relationship changes across market environments.

Return for Risk

VOX vs. BAMU — Risk / Return Rank

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

VOX

VOX Risk / Return Rank: 27
VOX Sharpe Ratio Rank: 28
VOX Sortino Ratio Rank: 28
VOX Omega Ratio Rank: 26
VOX Calmar Ratio Rank: 24
VOX Martin Ratio Rank: 30

BAMU

BAMU Risk / Return Rank: 98
BAMU Sharpe Ratio Rank: 98
BAMU Sortino Ratio Rank: 98
BAMU Omega Ratio Rank: 98
BAMU Calmar Ratio Rank: 99
BAMU Martin Ratio Rank: 99

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.

VOX vs. BAMU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Communication Services ETF (VOX) and Brookstone Ultra-Short Bond ETF (BAMU). 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.

	VOX	BAMU	Difference
Sharpe ratio: Return per unit of total volatility	0.97	5.01	-4.03
Sortino ratio: Return per unit of downside risk	1.47	8.84	-7.36
Omega ratio: Gain probability vs. loss probability	1.18	2.43	-1.25
Calmar ratio: Return relative to maximum drawdown	1.13	24.72	-23.59
Martin ratio: Return relative to average drawdown	4.07	97.89	-93.82

VOX vs. BAMU - Sharpe Ratio Comparison

The current VOX Sharpe Ratio is 0.97, which is lower than the BAMU Sharpe Ratio of 5.01. The chart below compares the historical Sharpe Ratios of VOX and BAMU, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

VOX vs. BAMU - Drawdown Comparison

The maximum VOX drawdown since its inception was -57.18%, which is greater than BAMU's maximum drawdown of -0.36%. Use the drawdown chart below to compare losses from any high point for VOX and BAMU.

Drawdown Indicators

	VOX	BAMU	Difference
Max Drawdown Largest peak-to-trough decline	-57.18%	-0.36%	-56.82%
Max Drawdown (1Y) Largest decline over 1 year	-13.56%	-0.12%	-13.44%
Max Drawdown (3Y) Largest decline over 3 years	-21.15%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-46.76%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-46.76%	—	—
Current Drawdown Current decline from peak	-6.51%	0.00%	-6.51%
Average Drawdown Average peak-to-trough decline	-11.90%	-0.02%	-11.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.74%	0.03%	+3.71%

Volatility

VOX vs. BAMU - Volatility Comparison

Vanguard Communication Services ETF (VOX) has a higher volatility of 5.00% compared to Brookstone Ultra-Short Bond ETF (BAMU) at 0.09%. This indicates that VOX's price experiences larger fluctuations and is considered to be riskier than BAMU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VOX	BAMU	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.00%	0.09%	+4.91%
Volatility (6M) Calculated over the trailing 6-month period	11.74%	0.40%	+11.34%
Volatility (1Y) Calculated over the trailing 1-year period	15.65%	0.58%	+15.07%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.21%	0.87%	+20.34%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.92%	0.87%	+20.05%

VOX vs. BAMU - Expense Ratio Comparison

VOX has a 0.09% expense ratio, which is lower than BAMU's 1.09% expense ratio.

Dividends

VOX vs. BAMU - Dividend Comparison

VOX's dividend yield for the trailing twelve months is around 1.02%, less than BAMU's 3.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BAMU Brookstone Ultra-Short Bond ETF	3.05%	3.20%	3.97%	0.84%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VOX Vanguard Communication Services ETF	1.02%	0.95%	1.05%	1.03%	0.88%	0.93%	0.73%	0.90%	2.77%	3.83%	2.67%	3.55%

Frequently Asked Questions

Can I hold both VOX and BAMU in my portfolio?

VOX and BAMU have a correlation of -0.14, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VOX or BAMU?

VOX has higher volatility (5.00%) compared to BAMU (0.09%). In terms of maximum drawdown, VOX dropped -57.18% vs BAMU's -0.36%.

Which ETF is better, VOX or BAMU?

On 1-year performance, VOX leads with 16.56% vs 2.89% for BAMU. On fees, VOX is cheaper at 0.09% per year. On volatility, BAMU has been the lower-risk option at 0.09%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, VOX or BAMU?

Over the 1-year period, VOX has performed better with a 16.56% return vs 2.89%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, VOX or BAMU?

VOX is cheaper with a 0.09% expense ratio, compared with 1.09% for BAMU.

Which ETF pays a higher dividend yield, VOX or BAMU?

BAMU has the higher dividend yield at 3.05%, compared with 1.02% for VOX.

What is the main difference between VOX and BAMU?

VOX is categorized as Communications Equities, while BAMU is Ultrashort Bond. They also come from different issuers: Vanguard and Brookstone. Their fees differ too: 0.09% for VOX and 1.09% for BAMU.

Which has better risk-adjusted returns?

BAMU currently has the higher Sharpe Ratio (5.01 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.