TCAI vs. BAMU

Last updated Jun 24, 2026

TCAI (Tortoise AI Infrastructure ETF) and BAMU (Brookstone Ultra-Short Bond ETF) are both exchange-traded funds - TCAI is a Technology Equities fund actively managed by Tortoise, while BAMU is a Ultrashort Bond fund actively managed by Brookstone. Both are actively managed. At a correlation of -0.11, they often move in opposite directions. TCAI charges 0.65%/yr vs 1.09%/yr for BAMU.

Performance

TCAI vs. BAMU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Tortoise AI Infrastructure ETF (TCAI) 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, TCAI achieves a 86.83% return, which is significantly higher than BAMU's 1.18% return.

TCAI

• 1D: -4.84%
• 1M: 10.54%
• YTD: 86.83%
• 6M: 82.92%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 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)

TCAI vs. BAMU - Yearly Performance Comparison

	2026 (YTD)	2025
TCAI Tortoise AI Infrastructure ETF	86.83%	17.27%
BAMU Brookstone Ultra-Short Bond ETF	1.18%	1.31%

Correlation

The correlation between TCAI 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 (All Time) Calculated using the full available price history since Aug 5, 2025	-0.11

Return for Risk

TCAI vs. BAMU — Risk / Return Rank

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

TCAI

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

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.

TCAI vs. BAMU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Tortoise AI Infrastructure ETF (TCAI) 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.

	TCAI	BAMU	Difference
Sharpe ratio: Return per unit of total volatility	—	4.94	—
Sortino ratio: Return per unit of downside risk	—	8.71	—
Omega ratio: Gain probability vs. loss probability	—	2.41	—
Calmar ratio: Return relative to maximum drawdown	—	24.37	—
Martin ratio: Return relative to average drawdown	—	96.52	—

Drawdowns

TCAI vs. BAMU - Drawdown Comparison

The maximum TCAI drawdown since its inception was -15.80%, which is greater than BAMU's maximum drawdown of -0.36%. Use the drawdown chart below to compare losses from any high point for TCAI and BAMU.

Drawdown Indicators

	TCAI	BAMU	Difference
Max Drawdown Largest peak-to-trough decline	-15.80%	-0.36%	-15.44%
Max Drawdown (1Y) Largest decline over 1 year	—	-0.12%	—
Current Drawdown Current decline from peak	-4.84%	0.00%	-4.84%
Average Drawdown Average peak-to-trough decline	-3.54%	-0.02%	-3.52%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.03%	—

Volatility

Volatility by Period

	TCAI	BAMU	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.09%	—
Volatility (6M) Calculated over the trailing 6-month period	—	0.39%	—
Volatility (1Y) Calculated over the trailing 1-year period	37.57%	0.58%	+36.99%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	37.57%	0.87%	+36.70%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	37.57%	0.87%	+36.70%

TCAI vs. BAMU - Expense Ratio Comparison

TCAI has a 0.65% expense ratio, which is lower than BAMU's 1.09% expense ratio.

Dividends

TCAI vs. BAMU - Dividend Comparison

TCAI's dividend yield for the trailing twelve months is around 0.03%, less than BAMU's 3.05% yield.

Position	TTM	2025	2024	2023
BAMU Brookstone Ultra-Short Bond ETF	3.05%	3.20%	3.97%	0.84%
TCAI Tortoise AI Infrastructure ETF	0.03%	0.05%	0.00%	0.00%

Frequently Asked Questions

Can I hold both TCAI and BAMU in my portfolio?

TCAI 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 ETF is better, TCAI or BAMU?

On fees, TCAI is cheaper at 0.65% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, TCAI or BAMU?

TCAI is cheaper with a 0.65% expense ratio, compared with 1.09% for BAMU.

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

BAMU has the higher dividend yield at 3.05%, compared with 0.03% for TCAI.

What is the main difference between TCAI and BAMU?

TCAI is categorized as Technology Equities, while BAMU is Ultrashort Bond. They also come from different issuers: Tortoise and Brookstone. Their fees differ too: 0.65% for TCAI and 1.09% for BAMU.