EUAD vs. IDEF

Last updated Apr 1, 2026

Compare and contrast key facts about Select STOXX Europe Aerospace & Defense ETF (EUAD) and iShares Defense Industrials Active ETF (IDEF).

EUAD and IDEF are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. EUAD is a passively managed fund by Select Funds that tracks the performance of the STOXX Europe Total Market Aerospace & Defense Index. It was launched on Oct 22, 2024. IDEF is an actively managed fund by iShares. It was launched on May 19, 2025.

Performance

EUAD vs. IDEF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Select STOXX Europe Aerospace & Defense ETF (EUAD) and iShares Defense Industrials Active ETF (IDEF). The values are adjusted to include any dividend payments, if applicable.

EUAD vs. IDEF - Yearly Performance Comparison

	2026 (YTD)	2025
EUAD Select STOXX Europe Aerospace & Defense ETF	-3.30%	8.32%
IDEF iShares Defense Industrials Active ETF	6.20%	23.05%

Returns By Period

In the year-to-date period, EUAD achieves a -3.30% return, which is significantly lower than IDEF's 6.20% return.

EUAD

• 1D: 4.97%
• 1M: -12.63%
• YTD: -3.30%
• 6M: -12.91%
• 1Y: 22.00%
• 3Y*: —
• 5Y*: —
• 10Y*: —

IDEF

• 1D: 4.15%
• 1M: -8.78%
• YTD: 6.20%
• 6M: 3.09%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

EUAD vs. IDEF - Expense Ratio Comparison

EUAD has a 0.50% expense ratio, which is lower than IDEF's 0.55% expense ratio.

IDEF

iShares Defense Industrials Active ETF

EUAD

Select STOXX Europe Aerospace & Defense ETF

Return for Risk

EUAD vs. IDEF — Risk / Return Rank

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

EUAD

EUAD Risk / Return Rank: 43
EUAD Sharpe Ratio Rank: 45
EUAD Sortino Ratio Rank: 45
EUAD Omega Ratio Rank: 41
EUAD Calmar Ratio Rank: 47
EUAD 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.

EUAD vs. IDEF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Select STOXX Europe Aerospace & Defense ETF (EUAD) and iShares Defense Industrials Active ETF (IDEF). 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.

	EUAD	IDEF	Difference
Sharpe ratio Return per unit of total volatility	0.77	—	—
Sortino ratio Return per unit of downside risk	1.18	—	—
Omega ratio Gain probability vs. loss probability	1.15	—	—
Calmar ratio Return relative to maximum drawdown	1.09	—	—
Martin ratio Return relative to average drawdown	3.21	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	EUAD	IDEF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.77	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.44	1.85	-0.41

Correlation

The correlation between EUAD and IDEF is 0.71, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

EUAD vs. IDEF - Dividend Comparison

EUAD's dividend yield for the trailing twelve months is around 0.41%, more than IDEF's 0.16% yield.

	TTM	2025	2024
EUAD Select STOXX Europe Aerospace & Defense ETF	0.41%	0.40%	0.10%
IDEF iShares Defense Industrials Active ETF	0.16%	0.17%	0.00%

Drawdowns

EUAD vs. IDEF - Drawdown Comparison

The maximum EUAD drawdown since its inception was -19.61%, which is greater than IDEF's maximum drawdown of -14.63%. Use the drawdown chart below to compare losses from any high point for EUAD and IDEF.

Drawdown Indicators

	EUAD	IDEF	Difference
Max Drawdown Largest peak-to-trough decline	-19.61%	-14.63%	-4.98%
Max Drawdown (1Y) Largest decline over 1 year	-19.61%	—	—
Current Drawdown Current decline from peak	-15.62%	-11.08%	-4.54%
Average Drawdown Average peak-to-trough decline	-4.56%	-2.88%	-1.68%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.68%	—	—

Volatility

Volatility by Period

	EUAD	IDEF	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.28%	—	—
Volatility (6M) Calculated over the trailing 6-month period	19.72%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	28.77%	20.00%	+8.77%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.32%	20.00%	+8.32%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	28.32%	20.00%	+8.32%