NASA vs. DRAM

Last updated Jul 17, 2026

NASA (Tema Space Innovators ETF) and DRAM (Roundhill Memory ETF) are both exchange-traded funds - NASA is a Aerospace & Defense fund actively managed by Tema, while DRAM is a Technology Equities fund actively managed by Roundhill. Both are actively managed. At a 0.40 correlation, their price movements are largely independent. NASA charges 0.75%/yr vs 0.65%/yr for DRAM.

Performance

NASA vs. DRAM - Performance Comparison

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

Returns By Period

NASA

• 1D: -6.07%
• 1M: -27.39%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

DRAM

• 1D: -8.82%
• 1M: -23.17%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

NASA vs. DRAM - Yearly Performance Comparison

	2026 (YTD)
NASA Tema Space Innovators ETF	-12.08%
DRAM Roundhill Memory ETF	93.85%

Correlation

The correlation between NASA and DRAM is 0.40, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Apr 2, 2026	0.40

Return for Risk

NASA vs. DRAM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Tema Space Innovators ETF (NASA) 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.

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.

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

Drawdowns

NASA vs. DRAM - Drawdown Comparison

The maximum NASA drawdown since its inception was -44.57%, which is greater than DRAM's maximum drawdown of -35.16%. Use the drawdown chart below to compare losses from any high point for NASA and DRAM.

Drawdown Indicators

	NASA	DRAM	Difference
Max Drawdown Largest peak-to-trough decline	-44.57%	-35.16%	-9.41%
Current Drawdown Current decline from peak	-44.57%	-35.16%	-9.41%
Average Drawdown Average peak-to-trough decline	-13.59%	-6.83%	-6.76%

Volatility

Volatility by Period

	NASA	DRAM	Difference
Volatility (1Y) Calculated over the trailing 1-year period	67.06%	97.73%	-30.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	67.06%	97.73%	-30.67%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	67.06%	97.73%	-30.67%

NASA vs. DRAM - Expense Ratio Comparison

NASA has a 0.75% expense ratio, which is higher than DRAM's 0.65% expense ratio.

Dividends

NASA vs. DRAM - Dividend Comparison

Neither NASA nor DRAM has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both NASA and DRAM in my portfolio?

NASA and DRAM have a correlation of 0.40, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, NASA 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, NASA or DRAM?

DRAM is cheaper with a 0.65% expense ratio, compared with 0.75% for NASA.

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

NASA and DRAM have nearly identical dividend yields, around 0.00%.

What is the main difference between NASA and DRAM?

NASA is categorized as Aerospace & Defense, while DRAM is Technology Equities. They also come from different issuers: Tema and Roundhill. Their fees differ too: 0.75% for NASA and 0.65% for DRAM.