Data as of .
IDEF vs WDGF: which is really different?
IDEF and WDGF hold 52% of their weight in the same names, and IDEF returned more over the year.
ETFIQ Off-Index Score: WDGF 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
52% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, IDEF and WDGF hold 52% of their money in the same securities at the same weight.
| Holding | IDEF | WDGF |
|---|---|---|
| RTX | 6.55% | 5.46% |
| PALANTIR TECHNOLOGIES CLASS A | 5.02% | 4.73% |
| LOCKHEED MARTIN CORP | 3.62% | 4.94% |
| ROLLS-ROYCE HOLDINGS PLC | 3.29% | 3.04% |
| GENERAL DYNAMICS CORP | 2.94% | 5.19% |
| NORTHROP GRUMMAN CORP | 2.58% | 4.92% |
| BOEING | 3.19% | 2.55% |
| BAE SYSTEMS PLC | 2.18% | 5.04% |
| THALES SA | 2.18% | 3.35% |
| LEONARDO FINMECCANICA SPA | 1.60% | 2.07% |
| RHEINMETALL AG | 1.15% | 4.27% |
| ELBIT SYSTEMS | 1.06% | 2.15% |
| Only in IDEF | Only in WDGF |
|---|---|
| BLK CSH FND TREASURY SL AGENCY 3.77% | HANWHA AEROSPACE CO LTD 2.51% |
| SPACE EXPLORATION TECHNOLOGIES COR 2.44% | HINDUSTAN AERONAUTICS LTD 2.09% |
| HANWHA AEROSPACE LTD 2.21% | BHARAT ELECTRONICS LTD 2.06% |
| GE AEROSPACE 1.83% | SAAB AB 1.97% |
| MITSUBISHI HEAVY INDUSTRIES 1.73% | SINGAPORE TECHNOLOGIES ENGINEERING LTD 1.10% |
| HANWHA SYSTEMS LTD 1.69% | HYUNDAI ROTEM COMPANY 0.87% |
| PALO ALTO NETWORKS 1.66% | ARXIS INC 0.82% |
| SAAB CLASS B 1.62% | LIG DEFENSE & AEROSPACE CO LTD 0.73% |
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 Jun 30, 2026 and Sep 18, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| IDEF | WDGF | IDEF | WDGF | IDEF | WDGF | |
| 3 months | −1.6% | −2.8% | −3.9 pts | −5.1 pts | +0.9 pts | −0.3 pts |
| 6 months | −5.7% | −8.3% | −23.8 pts | −26.3 pts | −30.0 pts | −32.5 pts |
| 1 year | +4.4% | −0.4% | −12.2 pts | −17.0 pts | −17.4 pts | −22.2 pts |
| Since launch | +27.2% | +0.5% | −5.6 pts | −17.0 pts | −14.2 pts | −23.1 pts |
| IDEF iShares Defense Industrials Active ETF Holds 155 stocks in defense, 36% of its weight in S&P 500 companies | WDGF WisdomTree Global Defense Fund Holds 115 stocks in defense, 35% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | iShares | WisdomTree |
| Theme | Defense | Defense |
| In the S&P 500 | 36.2% | 34.9% |
| Active share vs the S&P 500 | 95.9% | 98.3% |
| In the Nasdaq-100 | 9.2% | 4.7% |
| Holdings | 155 | 115 |
| Top ten, share of the fund | 35.8% | 44.3% |
| Expense ratio | not published | 0.45% |
| Fee for the differing part | not published | 0.46% |
| Total return, 1 year | +4.4% | −0.4% |
| vs the S&P 500 | −12.2 pts | −17.0 pts |
| vs the Nasdaq-100 | −17.4 pts | −22.2 pts |
| Below its high | −13.4% | −14.8% |
| Net assets | $4.3bn | $5m |
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.
WDGF in plain words
By weight, 35% of WDGF'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 44% of the fund across 115 positions, as filed for Jun 30, 2026. Over the year to Sep 18, 2026 the fund returned −0.4% with distributions reinvested against +16.6% for the S&P 500, so a holder was behind by 17.0 pts. It sits 14.8% below its all-time high of Mar 9, 2026.
Questions people ask
- Do IDEF and WDGF hold the same stocks?
- By their latest filings, 52% of their books are the same securities at the same weight, which is close to holding one of them twice. Overlap is the sum of the smaller weight of every security they share.
- Which is more different from the S&P 500, IDEF or WDGF?
- IDEF has 36% of its weight in S&P 500 names and WDGF has 35%, so WDGF 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, IDEF against WDGF, data as of Sep 18, 2026. https://etfiq.com/compare/themes/idef-vs-wdgf Free to use with attribution; the underlying files are at Open data.