COPZ vs. BAMU

Last updated Jun 24, 2026

COPZ (Defiance Daily Target 2X Long Copper ETF) and BAMU (Brookstone Ultra-Short Bond ETF) are both exchange-traded funds - COPZ is a Copper fund actively managed by Defiance, while BAMU is a Ultrashort Bond fund actively managed by Brookstone. Both are actively managed. At a correlation of -0.22, they often move in opposite directions. COPZ charges 0.95%/yr vs 1.09%/yr for BAMU.

Performance

COPZ vs. BAMU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Defiance Daily Target 2X Long Copper ETF (COPZ) and Brookstone Ultra-Short Bond ETF (BAMU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

COPZ

• 1D: -12.01%
• 1M: -13.49%
• YTD: —
• 6M: —
• 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)

COPZ vs. BAMU - Yearly Performance Comparison

	2026 (YTD)
COPZ Defiance Daily Target 2X Long Copper ETF	-28.95%
BAMU Brookstone Ultra-Short Bond ETF	0.86%

Correlation

The correlation between COPZ and BAMU is -0.22, 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 Feb 18, 2026	-0.22

Return for Risk

COPZ vs. BAMU — Risk / Return Rank

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

COPZ

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.

COPZ vs. BAMU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Defiance Daily Target 2X Long Copper ETF (COPZ) 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.

	COPZ	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

COPZ vs. BAMU - Drawdown Comparison

The maximum COPZ drawdown since its inception was -49.79%, which is greater than BAMU's maximum drawdown of -0.36%. Use the drawdown chart below to compare losses from any high point for COPZ and BAMU.

Drawdown Indicators

	COPZ	BAMU	Difference
Max Drawdown Largest peak-to-trough decline	-49.79%	-0.36%	-49.43%
Max Drawdown (1Y) Largest decline over 1 year	—	-0.12%	—
Current Drawdown Current decline from peak	-41.30%	0.00%	-41.30%
Average Drawdown Average peak-to-trough decline	-28.87%	-0.02%	-28.85%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.03%	—

Volatility

Volatility by Period

	COPZ	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	110.79%	0.58%	+110.21%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	110.79%	0.87%	+109.92%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	110.79%	0.87%	+109.92%

COPZ vs. BAMU - Expense Ratio Comparison

COPZ has a 0.95% expense ratio, which is lower than BAMU's 1.09% expense ratio.

Dividends

COPZ vs. BAMU - Dividend Comparison

COPZ has not paid dividends to shareholders, while BAMU's dividend yield for the trailing twelve months is around 3.05%.

Position	TTM	2025	2024	2023
BAMU Brookstone Ultra-Short Bond ETF	3.05%	3.20%	3.97%	0.84%
COPZ Defiance Daily Target 2X Long Copper ETF	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both COPZ and BAMU in my portfolio?

COPZ and BAMU have a correlation of -0.22, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, COPZ or BAMU?

On fees, COPZ is cheaper at 0.95% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, COPZ or BAMU?

COPZ is cheaper with a 0.95% expense ratio, compared with 1.09% for BAMU.

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

BAMU has the higher dividend yield at 3.05%, compared with 0.00% for COPZ.

What is the main difference between COPZ and BAMU?

COPZ is categorized as Copper, while BAMU is Ultrashort Bond. They also come from different issuers: Defiance and Brookstone. Their fees differ too: 0.95% for COPZ and 1.09% for BAMU.