ROKT vs. BAMU

Last updated Jun 24, 2026

ROKT (SPDR S&P Kensho Final Frontiers ETF) and BAMU (Brookstone Ultra-Short Bond ETF) are both exchange-traded funds - ROKT is a Industrials Equities fund tracking the S&P Kensho Final Frontiers Index, while BAMU is a Ultrashort Bond fund actively managed by Brookstone. ROKT is passively managed, while BAMU is actively managed. Over the past year, ROKT returned 84.29% vs 2.87% for BAMU. At a correlation of -0.04, they often move in opposite directions. ROKT charges 0.45%/yr vs 1.09%/yr for BAMU.

Performance

ROKT vs. BAMU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SPDR S&P Kensho Final Frontiers ETF (ROKT) 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, ROKT achieves a 34.05% return, which is significantly higher than BAMU's 1.18% return.

ROKT

• 1D: -1.14%
• 1M: -9.09%
• YTD: 34.05%
• 6M: 30.35%
• 1Y: 84.29%
• 3Y*: 39.88%
• 5Y*: 22.35%
• 10Y*: —

BAMU

• 1D: 0.00%
• 1M: 0.16%
• YTD: 1.18%
• 6M: 1.29%
• 1Y: 2.87%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ROKT vs. BAMU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
ROKT SPDR S&P Kensho Final Frontiers ETF	34.05%	50.56%	27.89%	14.93%
BAMU Brookstone Ultra-Short Bond ETF	1.18%	3.21%	4.14%	1.20%

Correlation

The correlation between ROKT and BAMU is -0.11, 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	-0.11
Correlation (All Time) Calculated using the full available price history since Sep 27, 2023	-0.04

Return for Risk

ROKT vs. BAMU — Risk / Return Rank

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

ROKT

ROKT Risk / Return Rank: 84
ROKT Sharpe Ratio Rank: 87
ROKT Sortino Ratio Rank: 80
ROKT Omega Ratio Rank: 75
ROKT Calmar Ratio Rank: 89
ROKT Martin Ratio Rank: 90

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.

ROKT vs. BAMU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SPDR S&P Kensho Final Frontiers ETF (ROKT) 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.

	ROKT	BAMU	Difference
Sharpe ratio: Return per unit of total volatility	2.72	4.94	-2.22
Sortino ratio: Return per unit of downside risk	3.36	8.71	-5.36
Omega ratio: Gain probability vs. loss probability	1.42	2.41	-0.99
Calmar ratio: Return relative to maximum drawdown	5.10	24.37	-19.27
Martin ratio: Return relative to average drawdown	19.54	96.52	-76.99

ROKT vs. BAMU - Sharpe Ratio Comparison

The current ROKT Sharpe Ratio is 2.72, which is lower than the BAMU Sharpe Ratio of 4.94. The chart below compares the historical Sharpe Ratios of ROKT 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

ROKT vs. BAMU - Drawdown Comparison

The maximum ROKT drawdown since its inception was -43.16%, which is greater than BAMU's maximum drawdown of -0.36%. Use the drawdown chart below to compare losses from any high point for ROKT and BAMU.

Drawdown Indicators

	ROKT	BAMU	Difference
Max Drawdown Largest peak-to-trough decline	-43.16%	-0.36%	-42.80%
Max Drawdown (1Y) Largest decline over 1 year	-16.60%	-0.12%	-16.48%
Max Drawdown (3Y) Largest decline over 3 years	-23.46%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-23.46%	—	—
Current Drawdown Current decline from peak	-16.60%	0.00%	-16.60%
Average Drawdown Average peak-to-trough decline	-6.79%	-0.02%	-6.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.33%	0.03%	+4.30%

Volatility

ROKT vs. BAMU - Volatility Comparison

SPDR S&P Kensho Final Frontiers ETF (ROKT) has a higher volatility of 15.56% compared to Brookstone Ultra-Short Bond ETF (BAMU) at 0.09%. This indicates that ROKT'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

	ROKT	BAMU	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.56%	0.09%	+15.47%
Volatility (6M) Calculated over the trailing 6-month period	26.87%	0.39%	+26.48%
Volatility (1Y) Calculated over the trailing 1-year period	31.19%	0.58%	+30.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.36%	0.87%	+22.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.41%	0.87%	+24.54%

ROKT vs. BAMU - Expense Ratio Comparison

ROKT has a 0.45% expense ratio, which is lower than BAMU's 1.09% expense ratio.

Dividends

ROKT vs. BAMU - Dividend Comparison

ROKT's dividend yield for the trailing twelve months is around 0.27%, less than BAMU's 3.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
BAMU Brookstone Ultra-Short Bond ETF	3.05%	3.20%	3.97%	0.84%	0.00%	0.00%	0.00%	0.00%	0.00%
ROKT SPDR S&P Kensho Final Frontiers ETF	0.27%	0.41%	0.57%	0.62%	0.54%	1.79%	0.48%	0.74%	0.16%

Frequently Asked Questions

Can I hold both ROKT and BAMU in my portfolio?

ROKT and BAMU have a correlation of -0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ROKT or BAMU?

ROKT has higher volatility (15.56%) compared to BAMU (0.09%). In terms of maximum drawdown, ROKT dropped -43.16% vs BAMU's -0.36%.

Which ETF is better, ROKT or BAMU?

On 1-year performance, ROKT leads with 84.29% vs 2.87% for BAMU. On fees, ROKT is cheaper at 0.45% 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, ROKT or BAMU?

Over the 1-year period, ROKT has performed better with a 84.29% return vs 2.87%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ROKT or BAMU?

ROKT is cheaper with a 0.45% expense ratio, compared with 1.09% for BAMU.

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

BAMU has the higher dividend yield at 3.05%, compared with 0.27% for ROKT.

What is the main difference between ROKT and BAMU?

ROKT is categorized as Industrials Equities, while BAMU is Ultrashort Bond. They also come from different issuers: State Street and Brookstone. Their fees differ too: 0.45% for ROKT and 1.09% for BAMU.

Which has better risk-adjusted returns?

BAMU currently has the higher Sharpe Ratio (4.94 vs 2.72), 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.