{"url":"https://etfiq.com/rankings/themes-most-overlapping-pairs","section":"rankings","title":"The thematic ETFs that most overlap | ETFIQ","description":"GII leads the thematic ETFs that most overlap at 97% (overlap, latest holdings filings), as of Oct 27, 2026. 15 funds from ETFIQ\u2019s own published data.","as_of":"Oct 27, 2026","structured_data":[{"@type":"ItemList","name":"The thematic ETFs that most overlap","numberOfItems":15,"itemListOrder":"https://schema.org/ItemListOrderDescending","itemListElement":[{"@type":"ListItem","position":1,"name":"GII","url":"https://etfiq.com/funds/gii"},{"@type":"ListItem","position":2,"name":"AUAU","url":"https://etfiq.com/funds/auau"},{"@type":"ListItem","position":3,"name":"IBB","url":"https://etfiq.com/funds/ibb"},{"@type":"ListItem","position":4,"name":"SOXQ","url":"https://etfiq.com/funds/soxq"},{"@type":"ListItem","position":5,"name":"SHOC","url":"https://etfiq.com/funds/shoc"},{"@type":"ListItem","position":6,"name":"GDMN","url":"https://etfiq.com/funds/gdmn"},{"@type":"ListItem","position":7,"name":"FTXL","url":"https://etfiq.com/funds/ftxl"},{"@type":"ListItem","position":8,"name":"PSWD","url":"https://etfiq.com/funds/pswd"},{"@type":"ListItem","position":9,"name":"MARS","url":"https://etfiq.com/funds/mars"},{"@type":"ListItem","position":10,"name":"SMH","url":"https://etfiq.com/funds/smh"},{"@type":"ListItem","position":11,"name":"FIW","url":"https://etfiq.com/funds/fiw"},{"@type":"ListItem","position":12,"name":"AUAU","url":"https://etfiq.com/funds/auau"},{"@type":"ListItem","position":13,"name":"WDEF","url":"https://etfiq.com/funds/wdef"},{"@type":"ListItem","position":14,"name":"BUG","url":"https://etfiq.com/funds/bug"},{"@type":"ListItem","position":15,"name":"SHOC","url":"https://etfiq.com/funds/shoc"}]},{"@type":"Dataset","name":"The thematic ETFs that most overlap","description":"GII leads the thematic ETFs that most overlap at 97% (overlap, latest holdings filings), as of Oct 27, 2026. 15 funds from ETFIQ\u2019s own published data.","url":"https://etfiq.com/rankings/themes-most-overlapping-pairs","dateModified":"2026-10-27","creator":{"@id":"https://etfiq.com/#org"},"license":"https://etfiq.com/license/","isAccessibleForFree":true,"creditText":"ETFIQ (etfiq.com)","publisher":{"@id":"https://etfiq.com/#org"},"inLanguage":"en","creativeWorkStatus":"Published","distribution":[{"@type":"DataDownload","encodingFormat":"application/json","contentUrl":"https://etfiq.com/data/thematic.json"}],"variableMeasured":["Weight overlap with the S&P 500","Active share","Holdings","Top ten share of the fund","Total return","Fee for the differing part","Expense ratio"],"keywords":["exchange-traded funds","ETF","Thematic ETFs","fund data","SEC filings"]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"ETFIQ","item":"https://etfiq.com/"},{"@type":"ListItem","position":2,"name":"Rankings","item":"https://etfiq.com/rankings/"},{"@type":"ListItem","position":3,"name":"The thematic ETFs that most overlap","item":"https://etfiq.com/rankings/themes-most-overlapping-pairs"}]},{"@type":"WebPage","name":"The thematic ETFs that most overlap","description":"GII leads the thematic ETFs that most overlap at 97% (overlap, latest holdings filings), as of Oct 27, 2026. 15 funds from ETFIQ\u2019s own published data.","url":"https://etfiq.com/rankings/themes-most-overlapping-pairs","dateModified":"2026-10-27","isPartOf":{"@type":"WebSite","name":"ETFIQ","url":"https://etfiq.com"},"speakable":{"@type":"SpeakableSpecification","cssSelector":[".lede"]},"publisher":{"@id":"https://etfiq.com/#org"}}],"characters":3751,"truncated":false,"content":"ETFIQ / Rankings / The thematic ETFs that most overlap \n \n As of Oct 27, 2026 . Rebuilt every trading night.\n The thematic ETFs that most overlap\n See 15 funds ranked by weight overlap between two funds, latest holdings filings. Updated Oct 27, 2026. Overlap is the share of each fund\u2019s weight held in the same securities at the same weight.\n The thematic ETFs that most overlap, ranked by weight overlap between two funds, as of Oct 27, 2026. Source: ETFIQ. # Pair Funds Overlap Themes \n 1 GII and IGF State Street SPDR S&P Global Infra \u00b7 iShares Global Infrastructure ETF 97% Infrastructure \u00b7 Infrastructure \n 2 AUAU and GDX Global X Gold Miners ETF \u00b7 VanEck Gold Miners ETF 86% Gold miners \u00b7 Gold miners \n 3 IBB and IBBQ iShares Biotechnology ETF \u00b7 Invesco Nasdaq Biotechnology ETF 85% Biotech \u00b7 Biotech \n 4 SOXQ and SOXX Invesco PHLX Semiconductor ETF \u00b7 iShares Semiconductor ETF 83% Semiconductors \u00b7 Semiconductors \n 5 SHOC and SMH Strive U.S. Semiconductor ETF \u00b7 VanEck Semiconductor ETF 81% Semiconductors \u00b7 Semiconductors \n 6 GDMN and GDX WisdomTree Efficient Gold Plus Gol \u00b7 VanEck Gold Miners ETF 78% Gold miners \u00b7 Gold miners \n 7 FTXL and SOXX First Trust Nasdaq Semiconductor E \u00b7 iShares Semiconductor ETF 78% Semiconductors \u00b7 Semiconductors \n 8 PSWD and SPAM Xtrackers Cybersecurity Select Equ \u00b7 Themes Cybersecurity ETF 76% Cybersecurity \u00b7 Cybersecurity \n 9 MARS and WARP Roundhill Space & Technology ETF \u00b7 VanEck Space ETF 76% Space \u00b7 Space \n 10 SMH and SOXQ VanEck Semiconductor ETF \u00b7 Invesco PHLX Semiconductor ETF 75% Semiconductors \u00b7 Semiconductors \n 11 FIW and PHO First Trust Water ETF \u00b7 Invesco Water Resources ETF 75% Water \u00b7 Water \n 12 AUAU and GDMN Global X Gold Miners ETF \u00b7 WisdomTree Efficient Gold Plus Gol 75% Gold miners \u00b7 Gold miners \n 13 WDEF and XDEF WisdomTree Europe Defense Fund \u00b7 Xtrackers Europe Defense Technolog 74% Defense \u00b7 Defense \n 14 BUG and WCBR Global X Cybersecurity ETF \u00b7 WisdomTree Cybersecurity Fund 74% Cybersecurity \u00b7 Cybersecurity \n 15 SHOC and SOXQ Strive U.S. Semiconductor ETF \u00b7 Invesco PHLX Semiconductor ETF 73% Semiconductors \u00b7 Semiconductors \n \n Method\n Weight overlap is the sum of the smaller weight of every security two funds share, from their own filings. 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.\n Where to next\n Every thematic ETF Compare Sources\n Fund holdings from SEC Form N-PORT and from the issuers\u2019 own daily files SEC EDGAR, full-text search of fund filings SEC Form N-PORT, what a fund filed it holds Rule 19a-1, what a distribution notice must say Links are sources, not endorsements.\n A ranking is not a recommendation or an opinion. ETFIQ is an independent publisher, not an adviser. Standards and sources \n Cite this page. 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 Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms. The underlying files are at Open data .\n Other forms Plain 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 APA 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 Markdown [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)","source":"ETFIQ, independent ETF data. Recomputed nightly from public filings and prices.","publisher":{"@id":"https://etfiq.com/#org","name":"ETFIQ","url":"https://etfiq.com"},"license":"https://etfiq.com/license/","license_text":"Data ETFIQ computes is free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms.","citation":"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"}