HACBX vs. COPX

Last updated Jun 3, 2026

HACBX (Harbor Core Bond Fund) and COPX (Global X Copper Miners ETF) are both funds - HACBX is a Intermediate Core Bond fund managed by Harbor, while COPX is a Materials fund tracking the Solactive Global Copper Miners Index. Over the past 5 years, HACBX returned 0.08%/yr vs 21.18%/yr for COPX. At a 0.01 correlation, their price movements are largely independent. HACBX charges 0.40%/yr vs 0.65%/yr for COPX.

Performance

HACBX vs. COPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Harbor Core Bond Fund (HACBX) and Global X Copper Miners ETF (COPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, HACBX achieves a 0.42% return, which is significantly lower than COPX's 30.46% return.

HACBX

• 1D: -0.11%
• 1M: 0.13%
• YTD: 0.42%
• 6M: 0.42%
• 1Y: 5.40%
• 3Y*: 4.03%
• 5Y*: 0.08%
• 10Y*: —

COPX

• 1D: 4.00%
• 1M: 18.48%
• YTD: 30.46%
• 6M: 48.27%
• 1Y: 129.92%
• 3Y*: 39.06%
• 5Y*: 21.18%
• 10Y*: 22.40%

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

HACBX vs. COPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
HACBX Harbor Core Bond Fund	0.42%	7.02%	1.57%	5.73%	-13.36%	-1.66%	9.10%	8.58%	1.75%
COPX Global X Copper Miners ETF	30.46%	93.50%	3.57%	8.38%	-0.76%	23.39%	51.66%	12.48%	-28.46%

Correlation

The correlation between HACBX and COPX is 0.26, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.26
Correlation (3Y) Calculated over the trailing 3-year period	0.16
Correlation (5Y) Calculated over the trailing 5-year period	0.11
Correlation (All Time) Calculated using the full available price history since Jun 5, 2018	0.01

Over the past year, HACBX and COPX have become more correlated (0.26) than their long-term average of 0.01, meaning their price movements have been converging.

Return for Risk

HACBX vs. COPX — Risk / Return Rank

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

HACBX

HACBX Risk / Return Rank: 22
HACBX Sharpe Ratio Rank: 20
HACBX Sortino Ratio Rank: 21
HACBX Omega Ratio Rank: 20
HACBX Calmar Ratio Rank: 25
HACBX Martin Ratio Rank: 22

COPX

COPX Risk / Return Rank: 80
COPX Sharpe Ratio Rank: 90
COPX Sortino Ratio Rank: 73
COPX Omega Ratio Rank: 73
COPX Calmar Ratio Rank: 86
COPX Martin Ratio Rank: 79

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.

HACBX vs. COPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Harbor Core Bond Fund (HACBX) and Global X Copper Miners ETF (COPX). 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.

	HACBX	COPX	Difference
Sharpe ratio Return per unit of total volatility	1.31	3.17	-1.86
Sortino ratio Return per unit of downside risk	1.95	3.34	-1.38
Omega ratio Gain probability vs. loss probability	1.24	1.44	-0.21
Calmar ratio Return relative to maximum drawdown	1.90	4.84	-2.94
Martin ratio Return relative to average drawdown	5.90	15.55	-9.64
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

HACBX vs. COPX - Sharpe Ratio Comparison

The current HACBX Sharpe Ratio is 1.31, which is lower than the COPX Sharpe Ratio of 3.17. The chart below compares the historical Sharpe Ratios of HACBX and COPX, 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

	HACBX	COPX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.31	3.17	-1.86
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.01	0.58	-0.57
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.63	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.41	0.20	+0.21

Drawdowns

HACBX vs. COPX - Drawdown Comparison

The maximum HACBX drawdown since its inception was -18.48%, smaller than the maximum COPX drawdown of -83.16%. Use the drawdown chart below to compare losses from any high point for HACBX and COPX.

Drawdown Indicators

	HACBX	COPX	Difference
Max Drawdown Largest peak-to-trough decline	-18.48%	-83.16%	+64.68%
Max Drawdown (1Y) Largest decline over 1 year	-2.80%	-27.82%	+25.02%
Max Drawdown (3Y) Largest decline over 3 years	-6.26%	-39.72%	+33.46%
Max Drawdown (5Y) Largest decline over 5 years	-18.43%	-42.12%	+23.69%
Max Drawdown (10Y) Largest decline over 10 years	—	-65.41%	—
Current Drawdown Current decline from peak	-1.71%	-2.13%	+0.42%
Average Drawdown Average peak-to-trough decline	-5.30%	-39.31%	+34.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.90%	8.65%	-7.75%

Volatility

HACBX vs. COPX - Volatility Comparison

The current volatility for Harbor Core Bond Fund (HACBX) is 1.37%, while Global X Copper Miners ETF (COPX) has a volatility of 15.20%. This indicates that HACBX experiences smaller price fluctuations and is considered to be less risky than COPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	HACBX	COPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.37%	15.20%	-13.83%
Volatility (6M) Calculated over the trailing 6-month period	2.75%	35.46%	-32.71%
Volatility (1Y) Calculated over the trailing 1-year period	3.86%	41.25%	-37.39%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.93%	36.49%	-30.56%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.26%	35.53%	-30.27%

HACBX vs. COPX - Expense Ratio Comparison

HACBX has a 0.40% expense ratio, which is lower than COPX's 0.65% expense ratio.

Dividends

HACBX vs. COPX - Dividend Comparison

HACBX's dividend yield for the trailing twelve months is around 4.52%, more than COPX's 2.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COPX Global X Copper Miners ETF	2.05%	2.68%	1.80%	2.39%	3.14%	1.48%	1.30%	1.37%	2.59%	1.57%	0.60%	1.20%
HACBX Harbor Core Bond Fund	4.52%	4.50%	4.21%	3.83%	3.15%	2.18%	4.43%	3.55%	1.73%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both HACBX and COPX in my portfolio?

HACBX and COPX have a correlation of 0.26, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, HACBX or COPX?

COPX has higher volatility (15.20%) compared to HACBX (1.37%). In terms of maximum drawdown, HACBX dropped -18.48% vs COPX's -83.16%.

Which has better risk-adjusted returns?

COPX currently has the higher Sharpe Ratio (3.17 vs 1.31), 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.