NASA vs. IEO

Last updated Jul 17, 2026

NASA (Tema Space Innovators ETF) and IEO (iShares U.S. Oil & Gas Exploration & Production ETF) are both exchange-traded funds - NASA is a Aerospace & Defense fund actively managed by Tema, while IEO is a Energy Equities fund tracking the Dow Jones U.S. Select Oil Exploration & Production Index. NASA is actively managed, while IEO is passively managed. At a correlation of -0.19, they often move in opposite directions. NASA charges 0.75%/yr vs 0.42%/yr for IEO.

Performance

NASA vs. IEO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Tema Space Innovators ETF (NASA) and iShares U.S. Oil & Gas Exploration & Production ETF (IEO). 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*: —

IEO

• 1D: 1.26%
• 1M: 8.07%
• 6M: 30.12%
• YTD: 34.63%
• 1Y: 36.50%
• 3Y*: 14.18%
• 5Y*: 22.38%
• 10Y*: 10.35%

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

NASA vs. IEO - Yearly Performance Comparison

	2026 (YTD)
NASA Tema Space Innovators ETF	-3.65%
IEO iShares U.S. Oil & Gas Exploration & Production ETF	-5.74%

Correlation

The correlation between NASA and IEO is -0.19, 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 Mar 31, 2026	-0.19

Return for Risk

NASA vs. IEO — Risk / Return Rank

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

NASA

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

IEO

IEO Risk / Return Rank: 48
IEO Sharpe Ratio Rank: 51
IEO Sortino Ratio Rank: 47
IEO Omega Ratio Rank: 45
IEO Calmar Ratio Rank: 56
IEO Martin Ratio Rank: 43

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.

NASA vs. IEO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Tema Space Innovators ETF (NASA) and iShares U.S. Oil & Gas Exploration & Production ETF (IEO). 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.

	NASA	IEO	Difference
Sharpe ratio: Return per unit of total volatility	—	1.43	—
Sortino ratio: Return per unit of downside risk	—	1.93	—
Omega ratio: Gain probability vs. loss probability	—	1.24	—
Calmar ratio: Return relative to maximum drawdown	—	2.25	—
Martin ratio: Return relative to average drawdown	—	5.57	—

Drawdowns

NASA vs. IEO - Drawdown Comparison

The maximum NASA drawdown since its inception was -44.57%, smaller than the maximum IEO drawdown of -79.17%. Use the drawdown chart below to compare losses from any high point for NASA and IEO.

Drawdown Indicators

	NASA	IEO	Difference
Max Drawdown Largest peak-to-trough decline	-44.57%	-79.17%	+34.60%
Max Drawdown (1Y) Largest decline over 1 year	—	-16.32%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-31.46%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-31.46%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-75.00%	—
Current Drawdown Current decline from peak	-44.57%	-7.28%	-37.29%
Average Drawdown Average peak-to-trough decline	-13.59%	-26.19%	+12.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	6.57%	—

Volatility

Volatility by Period

	NASA	IEO	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	6.61%	—
Volatility (6M) Calculated over the trailing 6-month period	—	20.21%	—
Volatility (1Y) Calculated over the trailing 1-year period	67.06%	25.67%	+41.39%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	67.06%	30.36%	+36.70%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	67.06%	34.92%	+32.14%

NASA vs. IEO - Expense Ratio Comparison

NASA has a 0.75% expense ratio, which is higher than IEO's 0.42% expense ratio.

Dividends

NASA vs. IEO - Dividend Comparison

NASA has not paid dividends to shareholders, while IEO's dividend yield for the trailing twelve months is around 1.96%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IEO iShares U.S. Oil & Gas Exploration & Production ETF	1.96%	2.61%	2.63%	3.00%	3.77%	2.62%	3.17%	1.85%	1.67%	0.94%	0.98%	2.03%
NASA Tema Space Innovators 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 NASA and IEO in my portfolio?

NASA and IEO have a correlation of -0.19, 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 IEO?

On fees, IEO is cheaper at 0.42% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, NASA or IEO?

IEO is cheaper with a 0.42% expense ratio, compared with 0.75% for NASA.

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

IEO has the higher dividend yield at 1.96%, compared with 0.00% for NASA.

What is the main difference between NASA and IEO?

NASA is categorized as Aerospace & Defense, while IEO is Energy Equities. They also come from different issuers: Tema and iShares. Their fees differ too: 0.75% for NASA and 0.42% for IEO.