DRAM vs. COPX

Last updated Jun 9, 2026

DRAM (Roundhill Memory ETF) and COPX (Global X Copper Miners ETF) are both exchange-traded funds - DRAM is a Technology Equities fund actively managed by Roundhill, while COPX is a Materials fund tracking the Solactive Global Copper Miners Total Return Index. DRAM is actively managed, while COPX is passively managed. A 0.61 correlation means they provide meaningful diversification when combined. Both charge a 0.65% expense ratio.

Performance

DRAM vs. COPX - Performance Comparison

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

Returns By Period

DRAM

• 1D: 8.48%
• 1M: 14.62%
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

COPX

• 1D: 0.81%
• 1M: -5.44%
• YTD: 13.23%
• 6M: 23.36%
• 1Y: 93.73%
• 3Y*: 32.33%
• 5Y*: 18.13%
• 10Y*: 20.76%

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

DRAM vs. COPX - Yearly Performance Comparison

	2026 (YTD)
DRAM Roundhill Memory ETF	124.15%
COPX Global X Copper Miners ETF	4.02%

Correlation

The correlation between DRAM and COPX is 0.61, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (All Time) Calculated using the full available price history since Apr 2, 2026	0.61

DRAM vs. COPX - Sectors Allocation Comparison

Sectors	DRAM	COPX
Technology	100.0%	-
Basic Materials	-	96.3%
Communication Services	-	-
Consumer Cyclical	-	-
Consumer Defensive	-	-
Energy	-	-
Financial Services	-	-
Healthcare	-	-
Industrials	-	3.7%
Real Estate	-	-
Utilities	-	-

Return for Risk

DRAM vs. COPX — Risk / Return Rank

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

COPX

COPX Risk / Return Rank: 67
COPX Sharpe Ratio Rank: 76
COPX Sortino Ratio Rank: 60
COPX Omega Ratio Rank: 62
COPX Calmar Ratio Rank: 74
COPX Martin Ratio Rank: 65

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.

DRAM vs. COPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Roundhill Memory ETF (DRAM) 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.

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

Sharpe Ratios by Period

	DRAM	COPX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	2.20	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.50	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.58	—
Sharpe Ratio (All Time) Calculated using the full available price history	91.43	0.17	+91.26

Drawdowns

DRAM vs. COPX - Drawdown Comparison

The maximum DRAM drawdown since its inception was -19.97%, smaller than the maximum COPX drawdown of -83.16%. Use the drawdown chart below to compare losses from any high point for DRAM and COPX.

Drawdown Indicators

	DRAM	COPX	Difference
Max Drawdown Largest peak-to-trough decline	-19.97%	-83.16%	+63.19%
Max Drawdown (1Y) Largest decline over 1 year	—	-27.82%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-39.72%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-42.12%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-65.41%	—
Current Drawdown Current decline from peak	-13.18%	-15.06%	+1.88%
Average Drawdown Average peak-to-trough decline	-2.40%	-39.28%	+36.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	8.78%	—

Volatility

Volatility by Period

	DRAM	COPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	18.19%	—
Volatility (6M) Calculated over the trailing 6-month period	—	37.27%	—
Volatility (1Y) Calculated over the trailing 1-year period	85.85%	42.89%	+42.96%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	85.85%	36.80%	+49.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	85.85%	35.68%	+50.17%

DRAM vs. COPX - Expense Ratio Comparison

Both DRAM and COPX have an expense ratio of 0.65%.

Dividends

DRAM vs. COPX - Dividend Comparison

DRAM has not paid dividends to shareholders, while COPX's dividend yield for the trailing twelve months is around 2.36%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COPX Global X Copper Miners ETF	2.36%	2.68%	1.80%	2.39%	3.14%	1.48%	1.30%	1.37%	2.59%	1.57%	0.60%	1.20%
DRAM Roundhill Memory ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both DRAM and COPX in my portfolio?

DRAM and COPX have a correlation of 0.61, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, DRAM or COPX?

Both ETFs have the same 0.65% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, DRAM or COPX?

DRAM and COPX have the same expense ratio: 0.65% per year.

Which ETF pays a higher dividend yield, DRAM or COPX?

COPX has the higher dividend yield at 2.36%, compared with 0.00% for DRAM.

What is the main difference between DRAM and COPX?

DRAM is categorized as Technology Equities, while COPX is Materials. They also come from different issuers: Roundhill and Global X.