TEC vs. BAMU

Last updated Jun 4, 2026

TEC (Harbor Transformative Technologies ETF) and BAMU (Brookstone Ultra-Short Bond ETF) are both exchange-traded funds - TEC is a Technology Equities fund actively managed by Harbor, while BAMU is a Ultrashort Bond fund actively managed by Brookstone. Both are actively managed. Over the past year, TEC returned 41.52% vs 2.93% for BAMU. At a correlation of -0.11, they often move in opposite directions. TEC charges 0.69%/yr vs 1.09%/yr for BAMU.

Performance

TEC vs. BAMU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Harbor Transformative Technologies ETF (TEC) 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, TEC achieves a 20.38% return, which is significantly higher than BAMU's 1.06% return.

TEC

• 1D: -1.25%
• 1M: 11.87%
• YTD: 20.38%
• 6M: 18.30%
• 1Y: 41.52%
• 3Y*: —
• 5Y*: —
• 10Y*: —

BAMU

• 1D: 0.02%
• 1M: 0.20%
• YTD: 1.06%
• 6M: 1.25%
• 1Y: 2.93%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

TEC vs. BAMU - Yearly Performance Comparison

	2026 (YTD)	2025
TEC Harbor Transformative Technologies ETF	20.38%	44.91%
BAMU Brookstone Ultra-Short Bond ETF	1.06%	2.13%

Correlation

The correlation between TEC and BAMU is -0.15, 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	-0.15
Correlation (All Time) Calculated using the full available price history since Apr 21, 2025	-0.11

TEC vs. BAMU - Sectors Allocation Comparison

Sectors	TEC	BAMU
Technology	69.5%	-
Communication Services	13.5%	-
Consumer Cyclical	9.3%	-
Healthcare	4.2%	-
Utilities	1.5%	-
Financial Services	1.1%	98.8%
Industrials	1.0%	-
Basic Materials	-	-
Consumer Defensive	-	-
Energy	-	-
Real Estate	-	-

Return for Risk

TEC vs. BAMU — Risk / Return Rank

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

TEC

TEC Risk / Return Rank: 55
TEC Sharpe Ratio Rank: 63
TEC Sortino Ratio Rank: 58
TEC Omega Ratio Rank: 58
TEC Calmar Ratio Rank: 49
TEC Martin Ratio Rank: 45

BAMU

BAMU Risk / Return Rank: 98
BAMU Sharpe Ratio Rank: 97
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.

TEC vs. BAMU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Harbor Transformative Technologies ETF (TEC) 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.

	TEC	BAMU	Difference
Sharpe ratio: Return per unit of total volatility	2.08	4.98	-2.90
Sortino ratio: Return per unit of downside risk	2.71	8.77	-6.06
Omega ratio: Gain probability vs. loss probability	1.35	2.41	-1.06
Calmar ratio: Return relative to maximum drawdown	2.38	24.89	-22.51
Martin ratio: Return relative to average drawdown	7.40	97.89	-90.49
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

TEC vs. BAMU - Sharpe Ratio Comparison

The current TEC Sharpe Ratio is 2.08, which is lower than the BAMU Sharpe Ratio of 4.98. The chart below compares the historical Sharpe Ratios of TEC 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.

Sharpe Ratios by Period

	TEC	BAMU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.08	4.98	-2.90
Sharpe Ratio (All Time) Calculated using the full available price history	3.08	4.14	-1.06

Drawdowns

TEC vs. BAMU - Drawdown Comparison

The maximum TEC drawdown since its inception was -17.50%, which is greater than BAMU's maximum drawdown of -0.36%. Use the drawdown chart below to compare losses from any high point for TEC and BAMU.

Drawdown Indicators

	TEC	BAMU	Difference
Max Drawdown Largest peak-to-trough decline	-17.50%	-0.36%	-17.14%
Max Drawdown (1Y) Largest decline over 1 year	-17.50%	-0.12%	-17.38%
Current Drawdown Current decline from peak	-1.25%	0.00%	-1.25%
Average Drawdown Average peak-to-trough decline	-3.46%	-0.02%	-3.44%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.62%	0.03%	+5.59%

Volatility

TEC vs. BAMU - Volatility Comparison

Harbor Transformative Technologies ETF (TEC) has a higher volatility of 5.28% compared to Brookstone Ultra-Short Bond ETF (BAMU) at 0.07%. This indicates that TEC'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

	TEC	BAMU	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.28%	0.07%	+5.21%
Volatility (6M) Calculated over the trailing 6-month period	15.48%	0.43%	+15.05%
Volatility (1Y) Calculated over the trailing 1-year period	20.11%	0.59%	+19.52%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.95%	0.87%	+20.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.95%	0.87%	+20.08%

TEC vs. BAMU - Expense Ratio Comparison

TEC has a 0.69% expense ratio, which is lower than BAMU's 1.09% expense ratio.

Dividends

TEC vs. BAMU - Dividend Comparison

TEC has not paid dividends to shareholders, while BAMU's dividend yield for the trailing twelve months is around 3.06%.

Position	TTM	2025	2024	2023
BAMU Brookstone Ultra-Short Bond ETF	3.06%	3.20%	3.97%	0.84%
TEC Harbor Transformative Technologies ETF	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both TEC and BAMU in my portfolio?

TEC and BAMU have a correlation of -0.15, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TEC or BAMU?

TEC has higher volatility (5.28%) compared to BAMU (0.07%). In terms of maximum drawdown, TEC dropped -17.50% vs BAMU's -0.36%.

Which ETF is better, TEC or BAMU?

On 1-year performance, TEC leads with 41.52% vs 2.93% for BAMU. On fees, TEC is cheaper at 0.69% per year. On volatility, BAMU has been the lower-risk option at 0.07%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, TEC or BAMU?

Over the 1-year period, TEC has performed better with a 41.52% return vs 2.93%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, TEC or BAMU?

TEC is cheaper with a 0.69% expense ratio, compared with 1.09% for BAMU.

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

BAMU has the higher dividend yield at 3.06%, compared with 0.00% for TEC.

What is the main difference between TEC and BAMU?

TEC is categorized as Technology Equities, while BAMU is Ultrashort Bond. They also come from different issuers: Harbor and Brookstone. Their fees differ too: 0.69% for TEC and 1.09% for BAMU.

Which has better risk-adjusted returns?

BAMU currently has the higher Sharpe Ratio (4.98 vs 2.08), 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.