DRAM vs. EWY

Last updated Jun 23, 2026

DRAM (Roundhill Memory ETF) and EWY (iShares MSCI South Korea ETF) are both exchange-traded funds - DRAM is a Technology Equities fund actively managed by Roundhill, while EWY is a Asia Pacific Equities fund tracking the MSCI Korea Index. DRAM is actively managed, while EWY is passively managed. Their correlation of 0.92 suggests significant overlap in exposure. DRAM charges 0.65%/yr vs 0.59%/yr for EWY.

Performance

DRAM vs. EWY - Performance Comparison

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

Returns By Period

DRAM

• 1D: 5.23%
• 1M: 52.82%
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

EWY

• 1D: -0.08%
• 1M: 20.32%
• YTD: 125.28%
• 6M: 138.71%
• 1Y: 226.78%
• 3Y*: 54.89%
• 5Y*: 21.37%
• 10Y*: 18.13%

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

DRAM vs. EWY - Yearly Performance Comparison

	2026 (YTD)
DRAM Roundhill Memory ETF	198.96%
EWY iShares MSCI South Korea ETF	73.52%

Correlation

The correlation between DRAM and EWY is 0.92, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (All Time) Calculated using the full available price history since Apr 2, 2026	0.92

DRAM vs. EWY - Sectors Allocation Comparison

Sectors	DRAM	EWY
Technology	100.0%	61.4%
Basic Materials	-	2.2%
Communication Services	-	2.3%
Consumer Cyclical	-	5.1%
Consumer Defensive	-	1.6%
Energy	-	0.6%
Financial Services	-	8.9%
Healthcare	-	2.9%
Industrials	-	13.8%
Real Estate	-	-
Utilities	-	0.3%

Return for Risk

DRAM vs. EWY — Risk / Return Rank

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

DRAM

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

EWY

EWY Risk / Return Rank: 95
EWY Sharpe Ratio Rank: 98
EWY Sortino Ratio Rank: 93
EWY Omega Ratio Rank: 94
EWY Calmar Ratio Rank: 97
EWY Martin Ratio Rank: 96

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. EWY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Roundhill Memory ETF (DRAM) and iShares MSCI South Korea ETF (EWY). 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.

	DRAM	EWY	Difference
Sharpe ratio: Return per unit of total volatility	—	4.83	—
Sortino ratio: Return per unit of downside risk	—	4.40	—
Omega ratio: Gain probability vs. loss probability	—	1.64	—
Calmar ratio: Return relative to maximum drawdown	—	9.89	—
Martin ratio: Return relative to average drawdown	—	34.51	—

Drawdowns

DRAM vs. EWY - Drawdown Comparison

The maximum DRAM drawdown since its inception was -19.97%, smaller than the maximum EWY drawdown of -74.14%. Use the drawdown chart below to compare losses from any high point for DRAM and EWY.

Drawdown Indicators

	DRAM	EWY	Difference
Max Drawdown Largest peak-to-trough decline	-19.97%	-74.14%	+54.17%
Max Drawdown (1Y) Largest decline over 1 year	—	-23.08%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-27.36%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-48.55%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-49.73%	—
Current Drawdown Current decline from peak	0.00%	-0.08%	+0.08%
Average Drawdown Average peak-to-trough decline	-2.89%	-20.10%	+17.21%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	6.60%	—

Volatility

Volatility by Period

	DRAM	EWY	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	26.14%	—
Volatility (6M) Calculated over the trailing 6-month period	—	43.40%	—
Volatility (1Y) Calculated over the trailing 1-year period	87.28%	47.40%	+39.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	87.28%	30.51%	+56.77%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	87.28%	28.24%	+59.04%

DRAM vs. EWY - Expense Ratio Comparison

DRAM has a 0.65% expense ratio, which is higher than EWY's 0.59% expense ratio.

Dividends

DRAM vs. EWY - Dividend Comparison

DRAM has not paid dividends to shareholders, while EWY's dividend yield for the trailing twelve months is around 0.93%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
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%
EWY iShares MSCI South Korea ETF	0.93%	2.10%	2.55%	2.52%	1.23%	2.16%	0.73%	2.10%	1.34%	2.90%	1.21%	2.42%

Frequently Asked Questions

Can I hold both DRAM and EWY in my portfolio?

With a correlation of 0.92, DRAM and EWY move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which ETF is better, DRAM or EWY?

On fees, EWY is cheaper at 0.59% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, DRAM or EWY?

EWY is cheaper with a 0.59% expense ratio, compared with 0.65% for DRAM.

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

EWY has the higher dividend yield at 0.93%, compared with 0.00% for DRAM.

What is the main difference between DRAM and EWY?

DRAM is categorized as Technology Equities, while EWY is Asia Pacific Equities. They also come from different issuers: Roundhill and iShares. Their fees differ too: 0.65% for DRAM and 0.59% for EWY.