Do EUAD and IDEF hold the same stocks?

By their latest filings, 11% of their books are the same securities at the same weight. Overlap is the sum of the smaller weight of every security they share.

Which is more different from the S&P 500, EUAD or IDEF?

EUAD has 0% of its weight in S&P 500 names and IDEF has 40%, so EUAD differs more from the index.

Which is cheaper, EUAD or IDEF?

EUAD charges 0.50% a year and IDEF charges 0.55%, so EUAD is cheaper. Fees come from each fund's prospectus.

Data as of Nov 4, 2026.

Thematic ETFs

EUAD vs IDEF: Holdings Overlap & Returns

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Over the year to Nov 4, 2026, EUAD returned −8.0% to IDEF's −5.8%; 11% of their weight is in the same names.

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Net assets: $1.1bn on Aug 31, 2026 for Select STOXX Europe Aerospace & Defense ETF, and $3.6bn on Nov 4, 2026 for iShares Defense Industrials and Tech Active ETF.

EUAD on its own →IDEF on its own →

At a glance

0.0%

EUAD in the S&P 500

40.1%

IDEF in the S&P 500

−8.0%

EUAD total return, 1 year

−5.8%

IDEF total return, 1 year

EUAD · 1 year to Nov 4, 2026 13 positions, 28% of its net assets

EUAD holds 13 positions, 28% of its net assets. Holdings as of Aug 31, 2026.

IDEF · 1 year to Nov 4, 2026 60% of its weight is outside the S&P 500

40% of IDEF's weight is in S&P 500 companies and 60% is outside the index. Holdings as of Nov 3, 2026.

Pair scorecard

EUAD costs 0.05 points a year less; their one-year returns differ by 2.2 points.

EUAD vs IDEF: Holdings Overlap & Returns
Measure	EUAD	IDEF
Return
Measure	EUAD	IDEF
Total return, 1 year	−8.0%	−5.8%
Drawdown
Measure	EUAD	IDEF
Below its all-time high	16.7%, high on Jan 13, 2026	19.2%, high on Mar 2, 2026
Benchmark
Measure	EUAD	IDEF
What it tracks	Defense	Defense
Cost and size
Measure	EUAD	IDEF
Expense ratio	0.50%	0.55%
Net assets, EUAD as of Aug 31, 2026 and IDEF as of Nov 4, 2026	$1.1bn	$3.6bn
Holdings
Measure	EUAD	IDEF
Holdings in common	11%

Method

Risk and return

May 30, 2025 to Oct 30, 2026 · 74 weekly returns

EUAD IDEF

Return

Total return edge IDEF −2.1% +16.1%

Annualized edge IDEF −1.4% +11.0%

Price return edge IDEF −2.4% +15.7%

Risk

Volatility edge IDEF 28.7% 22.3%

Max drawdown edge IDEF −21.4% −17.1%

Risk-adjusted

Sharpe edge IDEF −0.04 0.40

Sortino edge IDEF −0.06 0.62

Calmar edge IDEF −0.07 0.65

Reading

From May 2025 to Oct 2026, IDEF returned more: +16.1% to −2.1%. IDEF swung less: 22.3% to 28.7%. IDEF fell less at its worst: −17.1% to −21.4%.

Full scorecard

9 measures, with how each is measured Open ↓

Risk and return: EUAD vs IDEF: Holdings Overlap & Returns
Measure	EUAD	IDEF	Edge	How it is measured
Return
Total return	−2.1%	+16.1%	IDEF	Price change plus distributions, reinvested.
Annualized	−1.4%	+11.0%	IDEF	Total return as a yearly rate.
Price return	−2.4%	+15.7%	IDEF	Price change alone, distributions left out.
Risk
Volatility	28.7%	22.3%	IDEF	Spread of weekly returns, annualized. Lower is steadier.
Downside deviation	20.5%	14.6%	IDEF	Like volatility, counting only weeks below the Treasury bill rate.
Max drawdown	−21.4%	−17.1%	IDEF	Deepest fall from a high to the low after it.
Risk-adjusted
Sharpe	−0.04	0.40	IDEF	Return above Treasury bills per unit of volatility.
Sortino	−0.06	0.62	IDEF	Return above Treasury bills per unit of downside deviation.
Calmar	−0.07	0.65	IDEF	Annualized return divided by the max drawdown.

Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 74 weekly returns. Cash rate: the 13-week Treasury bill.

What they share

11%

By the books each fund has filed, EUAD and IDEF hold 11% of their money in the same securities at the same weight. Holdings dated Aug 31, 2026 and Nov 3, 2026.

50%

0 half 100%

half

11% in common

Positions both hold · largest shared weight first EUAD IDEF

Thales SA 2.49% 3.76%

Rheinmetall AG 1.72% 1.67%

Airbus SE 4.58% 1.61%

Rolls-Royce Holdings PLC 1.11% 2.27%

BAE Systems PLC 2.38% 0.93%

Hensoldt AG 1.77% 0.78%

Babcock International Group PLC 1.50% 0.71%

QinetiQ Group PLC 0.77% 0.69%

MTU Aero Engines AG 4.63% 0.48%

Safran SA 0.96% 0.35%

Chemring Group PLC 0.51% 0.23%

Only in one fund ↓

Only in EUAD

Leonardo SpA 2.82%

Saab AB 2.75%

Only in IDEF

RTX 7.41%

LOCKHEED MARTIN 5.42%

GENERAL DYNAMICS CORP 4.39%

NORTHROP GRUMMAN CORP 3.93%

SPACE EXPLORATION TECHNOLOGIES COR 2.77%

PALANTIR TECHNOLOGIES CLASS A 2.67%

SAAB CLASS B 1.95%

PALO ALTO NETWORKS 1.74%

Check overlap with more funds →

Window by window

Window by window: EUAD vs IDEF: Holdings Overlap & Returns
	Total return
Window	EUAD	IDEF
3 months	−14.6%	−14.0%
6 months	−7.2%	−12.4%
1 year	−8.0%	−5.8%
Since launchNot the same days: EUAD Oct 2024 · IDEF May 2025	+60.5%	+18.8%

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Side by side

EUAD Select STOXX Europe Aerospace & Defense ETF · Holds 13 stocks in defense, 0% of its weight in S&P 500 companies IDEF iShares Defense Industrials and Tech Active ETF · Holds 162 stocks in defense, 40% of its weight in S&P 500 companies

Issuer Tuttle iShares

Theme Defense Defense

In the S&P 500 0.0% 40.1%

Active share vs the S&P 500 100.0% 92.6%

In the Nasdaq-100 0.0% 11.2%

Holdings 13 162

Top ten, share of the fund 25.8% 36.3%

Expense ratio 0.50% 0.55%

Fee for the differing part 0.50% 0.59%

Total return, 1 year −8.0% −5.8%

vs its benchmark not measured not measured

Below its high −16.7% −19.2%

Net assets, EUAD as of Aug 31, 2026 and IDEF as of Nov 4, 2026 $1.1bn $3.6bn

As of Nov 4, 2026. Source: ETFIQ.

11% of the two portfolios are the same securities at the same weight.

Client brief:

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About each fund

EUAD

By weight, 0% of EUAD's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 100%. The top ten holdings are 26% of the fund across 13 positions, as filed for Aug 31, 2026. Over the year to Nov 4, 2026 the fund returned −8.0% with distributions reinvested. It sits 16.7% below its all-time high of Jan 13, 2026.

IDEF

By weight, 40% of IDEF's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 93%. The top ten holdings are 36% of the fund across 162 positions, as published by its issuer for Nov 3, 2026. Over the year to Nov 4, 2026 the fund returned −5.8% with distributions reinvested. It sits 19.2% below its all-time high of Mar 2, 2026.

Questions people ask

Do EUAD and IDEF hold the same stocks?: By their latest filings, 11% of their books are the same securities at the same weight. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, EUAD or IDEF?: EUAD has 0% of its weight in S&P 500 names and IDEF has 40%, so EUAD differs more from the index.
Which is cheaper, EUAD or IDEF?: EUAD charges 0.50% a year and IDEF charges 0.55%, so EUAD is cheaper. Fees come from each fund's prospectus.

Other comparisons

EUAD vs XAR EUAD vs SHLD EUAD vs PPA EUAD vs ITA IDEF vs ITA IDEF vs MISL IDEF vs XAR IDEF vs SHLD

Where to next

All thematic ETFs ranked by the S&P 500 Difference Score →How the scores are computed →EUAD on its own →IDEF on its own →EUAD dividend history →EUAD holdings →IDEF dividend history →IDEF holdings →Method →Standards and sources →

Sources and dates

EUAD filings on SEC EDGAR ↗

EUAD prospectus with the expense ratio (SEC) ↗

Tuttle website ↗

IDEF filings on SEC EDGAR ↗

IDEF prospectus with the expense ratio (SEC) ↗

iShares page for IDEF ↗

Links are sources, not endorsements. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Every number is an ETFIQ calculation with distributions reinvested.

Cite this pageCitation, APA and Markdown

ETFIQ, EUAD against IDEF, data as of Nov 4, 2026. https://etfiq.com/compare/themes/euad-vs-idef

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.