COSW vs. MAGS

Last updated Jun 4, 2026

COSW (Roundhill COST WeeklyPay ETF) and MAGS (Roundhill Magnificent Seven ETF) are both exchange-traded funds - COSW is a Derivative Income fund actively managed by Roundhill, while MAGS is a Technology Equities fund actively managed by Roundhill. Both are actively managed. At a correlation of -0.18, they often move in opposite directions. COSW charges 0.99%/yr vs 0.29%/yr for MAGS.

Performance

COSW vs. MAGS - Performance Comparison

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

Returns By Period

In the year-to-date period, COSW achieves a 12.13% return, which is significantly higher than MAGS's 3.73% return.

COSW

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

MAGS

• 1D: -1.08%
• 1M: 2.17%
• YTD: 3.73%
• 6M: 3.62%
• 1Y: 31.34%
• 3Y*: 33.71%
• 5Y*: —
• 10Y*: —

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

COSW vs. MAGS - Yearly Performance Comparison

	2026 (YTD)	2025
COSW Roundhill COST WeeklyPay ETF	12.13%	-10.71%
MAGS Roundhill Magnificent Seven ETF	3.73%	2.40%

Correlation

The correlation between COSW and MAGS is -0.18, 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 Oct 24, 2025	-0.18

COSW vs. MAGS - Sectors Allocation Comparison

Sectors	COSW	MAGS
Consumer Defensive	7.9%	-
Basic Materials	-	-
Communication Services	-	9.3%
Consumer Cyclical	-	10.5%
Energy	-	-
Financial Services	-	-
Healthcare	-	-
Industrials	-	-
Real Estate	-	-
Technology	-	15.3%
Utilities	-	-

Return for Risk

COSW vs. MAGS — Risk / Return Rank

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

MAGS

MAGS Risk / Return Rank: 39
MAGS Sharpe Ratio Rank: 44
MAGS Sortino Ratio Rank: 42
MAGS Omega Ratio Rank: 40
MAGS Calmar Ratio Rank: 33
MAGS Martin Ratio Rank: 37

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.

COSW vs. MAGS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Roundhill COST WeeklyPay ETF (COSW) and Roundhill Magnificent Seven ETF (MAGS). 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	MAGS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	1.57	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.01	1.55	-1.54

Drawdowns

COSW vs. MAGS - Drawdown Comparison

The maximum COSW drawdown since its inception was -16.24%, smaller than the maximum MAGS drawdown of -29.91%. Use the drawdown chart below to compare losses from any high point for COSW and MAGS.

Drawdown Indicators

	COSW	MAGS	Difference
Max Drawdown Largest peak-to-trough decline	-16.24%	-29.91%	+13.67%
Max Drawdown (1Y) Largest decline over 1 year	—	-18.62%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-29.91%	—
Current Drawdown Current decline from peak	-14.62%	-3.55%	-11.07%
Average Drawdown Average peak-to-trough decline	-4.17%	-4.70%	+0.53%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	5.37%	—

Volatility

Volatility by Period

	COSW	MAGS	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	4.80%	—
Volatility (6M) Calculated over the trailing 6-month period	—	14.31%	—
Volatility (1Y) Calculated over the trailing 1-year period	26.10%	20.08%	+6.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	26.10%	25.94%	+0.16%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.10%	25.94%	+0.16%

COSW vs. MAGS - Expense Ratio Comparison

COSW has a 0.99% expense ratio, which is higher than MAGS's 0.29% expense ratio.

Dividends

COSW vs. MAGS - Dividend Comparison

COSW's dividend yield for the trailing twelve months is around 18.13%, more than MAGS's 1.43% yield.

Position	TTM	2025	2024	2023
COSW Roundhill COST WeeklyPay ETF	18.13%	4.96%	0.00%	0.00%
MAGS Roundhill Magnificent Seven ETF	1.43%	1.48%	0.81%	0.44%

Frequently Asked Questions

Can I hold both COSW and MAGS in my portfolio?

COSW and MAGS have a correlation of -0.18, 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 MAGS?

On fees, MAGS is cheaper at 0.29% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, COSW or MAGS?

MAGS is cheaper with a 0.29% expense ratio, compared with 0.99% for COSW.

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

COSW has the higher dividend yield at 18.13%, compared with 1.43% for MAGS.

What is the main difference between COSW and MAGS?

COSW is categorized as Derivative Income, while MAGS is Technology Equities. Their fees differ too: 0.99% for COSW and 0.29% for MAGS.