Data as of .
AV vs IDEF: which is really different?
AV and IDEF hold 27% of their weight in the same names.
ETFIQ Off-Index Score: AV 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
27% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, AV and IDEF hold 27% of their money in the same securities at the same weight.
| Holding | AV | IDEF |
|---|---|---|
| RTX Corp | 9.94% | 6.55% |
| Lockheed Martin Corp | 4.97% | 3.62% |
| Boeing Co/The | 4.00% | 3.19% |
| General Dynamics Corp | 5.48% | 2.94% |
| Northrop Grumman Corp | 4.50% | 2.58% |
| GE AEROSPACE | 10.74% | 1.83% |
| TransDigm Group Inc | 3.37% | 1.01% |
| AAR Corp | 0.87% | 2.55% |
| ATI Inc | 2.53% | 0.76% |
| Howmet Aerospace Inc | 4.63% | 0.70% |
| Carpenter Technology Corp | 1.90% | 0.67% |
| CAE Inc | 0.84% | 0.51% |
| Only in AV | Only in IDEF |
|---|---|
| United Parcel Service Inc 4.00% | PALANTIR TECHNOLOGIES CLASS A 5.02% |
| Delta Air Lines Inc 3.71% | BLK CSH FND TREASURY SL AGENCY 3.77% |
| First American Government Obligations Fund 12/01/2031 3.55% | ROLLS-ROYCE HOLDINGS PLC 3.29% |
| FedEx Corp 3.53% | SPACE EXPLORATION TECHNOLOGIES COR 2.44% |
| United Airlines Holdings Inc 3.04% | HANWHA AEROSPACE LTD 2.21% |
| Ryanair Holdings PLC 2.45% | BAE SYSTEMS PLC 2.18% |
| AerCap Holdings NV 2.20% | THALES SA 2.18% |
| Southwest Airlines Co 2.03% | MITSUBISHI HEAVY INDUSTRIES 1.73% |
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 Sep 18, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| AV | IDEF | AV | IDEF | AV | IDEF | |
| 3 months | −9.0% | −1.6% | −11.3 pts | −3.9 pts | −6.5 pts | +0.9 pts |
| 6 months | not published | −5.7% | not published | −23.8 pts | not published | −30.0 pts |
| 1 year | not published | +4.4% | not published | −12.2 pts | not published | −17.4 pts |
| Since launch | −2.4% | +27.2% | −6.7 pts | −5.6 pts | −6.2 pts | −14.2 pts |
| AV Corgi Aerospace & Commercial Aviation ETF Holds 40 stocks in defense, 66% 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 | Corgi | iShares |
| Theme | Defense | Defense |
| In the S&P 500 | 66.3% | 36.2% |
| Active share vs the S&P 500 | 97.6% | 95.9% |
| In the Nasdaq-100 | 0.0% | 9.2% |
| Holdings | 40 | 155 |
| Top ten, share of the fund | 55.5% | 35.8% |
| Expense ratio | 0.35% | not published |
| Fee for the differing part | 0.36% | not published |
| Total return, 1 year | −2.4% (since launch on May 6, 2026) | +4.4% |
| vs the S&P 500 | −6.7 pts | −12.2 pts |
| vs the Nasdaq-100 | −6.2 pts | −17.4 pts |
| Below its high | −13.0% | −13.4% |
| Net assets | $773,395 | $4.3bn |
AV in plain words
By weight, 66% of AV's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 98%. The top ten holdings are 56% of the fund across 40 positions, as published by its issuer for Sep 18, 2026. Since it launched on May 6, 2026 the fund returned −2.4% with distributions reinvested against +4.3% for the S&P 500, so a holder was behind by 6.7 pts. It sits 13.0% below its all-time high of Aug 5, 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 AV and IDEF hold the same stocks?
- By their latest filings, 27% of their books are the same securities at the same weight, which is a meaningful overlap. Overlap is the sum of the smaller weight of every security they share.
- Which is more different from the S&P 500, AV or IDEF?
- AV has 66% of its weight in S&P 500 names and IDEF has 36%, so AV 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, AV against IDEF, data as of Sep 18, 2026. https://etfiq.com/compare/themes/av-vs-idef Free to use with attribution; the underlying files are at Open data.