Data as of .
EUAD vs IDEF: which is really different?
EUAD and IDEF hold 14% of their weight in the same names, and IDEF returned more over the year.
ETFIQ Off-Index Score: EUAD scores higher
How much of it is not the index it is sold as an alternative to?
A percentile among the 379 thematic ETFs with a holdings filing. It is a position in a set, not a rating, and neither end of it is a recommendation. All thematic ETFs ranked by it · How it is computed
14% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, EUAD and IDEF hold 14% of their money in the same securities at the same weight.
| Holding | EUAD | IDEF |
|---|---|---|
| BAE Systems PLC | 8.96% | 2.18% |
| Thales SA | 6.92% | 2.18% |
| Safran SA | 7.56% | 1.30% |
| Rheinmetall AG | 7.53% | 1.15% |
| QinetiQ Group PLC | 2.02% | 0.45% |
| Hensoldt AG | 4.90% | 0.32% |
| Chemring Group PLC | 1.33% | 0.16% |
| Only in EUAD | Only in IDEF |
|---|---|
| Airbus SE 14.86% | RTX 6.55% |
| MTU Aero Engines AG 11.03% | PALANTIR TECHNOLOGIES CLASS A 5.02% |
| Rolls-Royce Holdings 8.43% | BLK CSH FND TREASURY SL AGENCY 3.77% |
| Leonardo SpA 8.27% | LOCKHEED MARTIN CORP 3.62% |
| Saab AB 7.00% | ROLLS-ROYCE HOLDINGS PLC 3.29% |
| CLEARST. RYCEY SWAP 6.00% | BOEING 3.19% |
| Babcock Internationa 4.14% | GENERAL DYNAMICS CORP 2.94% |
| CLEARST. BAESY SWAP 0.89% | NORTHROP GRUMMAN CORP 2.58% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated May 31, 2026 and Sep 18, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| EUAD | IDEF | EUAD | IDEF | EUAD | IDEF | |
| 3 months | +1.0% | −1.6% | −1.3 pts | −3.9 pts | +3.5 pts | +0.9 pts |
| 6 months | +4.8% | −5.7% | −13.2 pts | −23.8 pts | −19.4 pts | −30.0 pts |
| 1 year | −4.4% | +4.4% | −21.0 pts | −12.2 pts | −26.2 pts | −17.4 pts |
| Since launch | +70.4% | +27.2% | +36.8 pts | −5.6 pts | +23.6 pts | −14.2 pts |
| EUAD Select STOXX Europe Aerospace & Defense ETF Holds 18 stocks in defense, 0% of its weight in S&P 500 companies | IDEF iShares Defense Industrials Active ETF Holds 155 stocks in defense, 36% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | Tuttle | iShares |
| Theme | Defense | Defense |
| In the S&P 500 | 0.0% | 36.2% |
| Active share vs the S&P 500 | 100.0% | 95.9% |
| In the Nasdaq-100 | 0.0% | 9.2% |
| Holdings | 18 | 155 |
| Top ten, share of the fund | 86.6% | 35.8% |
| Expense ratio | 0.50% | not published |
| Fee for the differing part | 0.50% | not published |
| Total return, 1 year | −4.4% | +4.4% |
| vs the S&P 500 | −21.0 pts | −12.2 pts |
| vs the Nasdaq-100 | −26.2 pts | −17.4 pts |
| Below its high | −11.6% | −13.4% |
| Net assets | $1.2bn | $4.3bn |
EUAD in plain words
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 87% of the fund across 18 positions, as filed for May 31, 2026. Over the year to Sep 18, 2026 the fund returned −4.4% with distributions reinvested against +16.6% for the S&P 500, so a holder was behind by 21.0 pts. It sits 11.6% below its all-time high of Jan 13, 2026.
IDEF in plain words
By weight, 36% of IDEF's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 96%. The top ten holdings are 36% of the fund across 155 positions, as published by its issuer for Sep 18, 2026. Over the year to Sep 18, 2026 the fund returned +4.4% with distributions reinvested against +16.6% for the S&P 500, so a holder was behind by 12.2 pts. It sits 13.4% below its all-time high of Mar 2, 2026.
Questions people ask
- Do EUAD and IDEF hold the same stocks?
- By their latest filings, 14% of their books are the same securities at the same weight, which is mostly different names. 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 36%, so EUAD differs more from the index.
Other comparisons
Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, EUAD against IDEF, data as of Sep 18, 2026. https://etfiq.com/compare/themes/euad-vs-idef Free to use with attribution; the underlying files are at Open data.