COSW vs. DRAM

Last updated Jun 4, 2026

COSW (Roundhill COST WeeklyPay ETF) and DRAM (Roundhill Memory ETF) are both exchange-traded funds - COSW is a Derivative Income fund actively managed by Roundhill, while DRAM is a Technology Equities fund actively managed by Roundhill. Both are actively managed. At a correlation of -0.35, they often move in opposite directions. COSW charges 0.99%/yr vs 0.65%/yr for DRAM.

Performance

COSW vs. DRAM - Performance Comparison

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

Returns By Period

COSW

• 1D: 0.92%
• 1M: -6.40%
• YTD: 12.13%
• 6M: 2.92%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

DRAM

• 1D: 0.20%
• 1M: 64.14%
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

COSW vs. DRAM - Yearly Performance Comparison

	2026 (YTD)
COSW Roundhill COST WeeklyPay ETF	-6.43%
DRAM Roundhill Memory ETF	151.12%

Correlation

The correlation between COSW and DRAM is -0.35, 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 Apr 6, 2026	-0.35

COSW vs. DRAM - Sectors Allocation Comparison

Sectors	COSW	DRAM
Consumer Defensive	7.9%	-
Basic Materials	-	-
Communication Services	-	-
Consumer Cyclical	-	-
Energy	-	-
Financial Services	-	-
Healthcare	-	-
Industrials	-	-
Real Estate	-	-
Technology	-	100.0%
Utilities	-	-

Return for Risk

COSW vs. DRAM - Risk-Adjusted Trends Comparison

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

	COSW	DRAM	Difference
Sharpe Ratio (All Time) Calculated using the full available price history	0.01	341.95	-341.94

Drawdowns

COSW vs. DRAM - Drawdown Comparison

The maximum COSW drawdown since its inception was -16.24%, which is greater than DRAM's maximum drawdown of -10.46%. Use the drawdown chart below to compare losses from any high point for COSW and DRAM.

Drawdown Indicators

	COSW	DRAM	Difference
Max Drawdown Largest peak-to-trough decline	-16.24%	-10.46%	-5.78%
Current Drawdown Current decline from peak	-14.62%	0.00%	-14.62%
Average Drawdown Average peak-to-trough decline	-4.17%	-1.64%	-2.53%

Volatility

Volatility by Period

	COSW	DRAM	Difference
Volatility (1Y) Calculated over the trailing 1-year period	26.10%	73.92%	-47.82%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	26.10%	73.92%	-47.82%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.10%	73.92%	-47.82%

COSW vs. DRAM - Expense Ratio Comparison

COSW has a 0.99% expense ratio, which is higher than DRAM's 0.65% expense ratio.

Dividends

COSW vs. DRAM - Dividend Comparison

COSW's dividend yield for the trailing twelve months is around 18.13%, while DRAM has not paid dividends to shareholders.

Position	TTM	2025
COSW Roundhill COST WeeklyPay ETF	18.13%	4.96%
DRAM Roundhill Memory ETF	0.00%	0.00%

Frequently Asked Questions

Can I hold both COSW and DRAM in my portfolio?

COSW and DRAM have a correlation of -0.35, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, COSW or DRAM?

On fees, DRAM 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, COSW or DRAM?

DRAM is cheaper with a 0.65% expense ratio, compared with 0.99% for COSW.

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

COSW has the higher dividend yield at 18.13%, compared with 0.00% for DRAM.

What is the main difference between COSW and DRAM?

COSW is categorized as Derivative Income, while DRAM is Technology Equities. Their fees differ too: 0.99% for COSW and 0.65% for DRAM.