As of Oct 27, 2026. Rebuilt every trading night.
The thematic ETFs that most overlap
See 15 funds ranked by weight overlap between two funds, latest holdings filings. Updated Oct 27, 2026. Overlap is the share of each fund’s weight held in the same securities at the same weight.
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All 15, highest first
15 of 15 · click a column to sort| # | Pair | Funds | Overlap ↓ | Themes |
|---|---|---|---|---|
| 1 | GII and IGF | State Street SPDR S&P Global Infra · iShares Global Infrastructure ETF | 97% | Infrastructure · Infrastructure |
| 2 | AUAU and GDX | Global X Gold Miners ETF · VanEck Gold Miners ETF | 86% | Gold miners · Gold miners |
| 3 | IBB and IBBQ | iShares Biotechnology ETF · Invesco Nasdaq Biotechnology ETF | 85% | Biotech · Biotech |
| 4 | SOXQ and SOXX | Invesco PHLX Semiconductor ETF · iShares Semiconductor ETF | 83% | Semiconductors · Semiconductors |
| 5 | SHOC and SMH | Strive U.S. Semiconductor ETF · VanEck Semiconductor ETF | 81% | Semiconductors · Semiconductors |
| 6 | GDMN and GDX | WisdomTree Efficient Gold Plus Gol · VanEck Gold Miners ETF | 78% | Gold miners · Gold miners |
| 7 | FTXL and SOXX | First Trust Nasdaq Semiconductor E · iShares Semiconductor ETF | 78% | Semiconductors · Semiconductors |
| 8 | PSWD and SPAM | Xtrackers Cybersecurity Select Equ · Themes Cybersecurity ETF | 76% | Cybersecurity · Cybersecurity |
| 9 | MARS and WARP | Roundhill Space & Technology ETF · VanEck Space ETF | 76% | Space · Space |
| 10 | SMH and SOXQ | VanEck Semiconductor ETF · Invesco PHLX Semiconductor ETF | 75% | Semiconductors · Semiconductors |
| 11 | FIW and PHO | First Trust Water ETF · Invesco Water Resources ETF | 75% | Water · Water |
| 12 | AUAU and GDMN | Global X Gold Miners ETF · WisdomTree Efficient Gold Plus Gol | 75% | Gold miners · Gold miners |
| 13 | WDEF and XDEF | WisdomTree Europe Defense Fund · Xtrackers Europe Defense Technolog | 74% | Defense · Defense |
| 14 | BUG and WCBR | Global X Cybersecurity ETF · WisdomTree Cybersecurity Fund | 74% | Cybersecurity · Cybersecurity |
| 15 | SHOC and SOXQ | Strive U.S. Semiconductor ETF · Invesco PHLX Semiconductor ETF | 73% | Semiconductors · Semiconductors |
Weight overlap is the sum of the smaller weight of every security two funds share, from their own filings.
The rest of the method
ETFIQ computes it for every pair. The list sorts one published number, with no scoring or weighting. Every fund ETFIQ covers in this category is eligible, closed funds included.
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ETFIQ, The thematic ETFs that most overlap, ranked by weight overlap between two funds, data as of Oct 27, 2026. https://etfiq.com/rankings/themes-most-overlapping-pairs
ETFIQ. (Oct 27, 2026). The thematic ETFs that most overlap, ranked by weight overlap between two funds. Retrieved from https://etfiq.com/rankings/themes-most-overlapping-pairs
[The thematic ETFs that most overlap, ranked by weight overlap between two funds (ETFIQ, Oct 27, 2026)](https://etfiq.com/rankings/themes-most-overlapping-pairs)
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