{"url":"https://etfiq.com/rankings/themes-concentrated-water","section":"rankings","title":"The most concentrated water ETFs | ETFIQ","description":"The most concentrated water ETFs, ranked by the share of the fund held in its ten largest positions, as of Oct 20, 2026.","as_of":"Oct 20, 2026","structured_data":[{"@type":"ItemList","name":"The most concentrated water ETFs","numberOfItems":6,"itemListOrder":"https://schema.org/ItemListOrderDescending","itemListElement":[{"@type":"ListItem","position":1,"name":"TBLU","url":"https://etfiq.com/funds/tblu"},{"@type":"ListItem","position":2,"name":"PIO","url":"https://etfiq.com/funds/pio"},{"@type":"ListItem","position":3,"name":"AQWA","url":"https://etfiq.com/funds/aqwa"},{"@type":"ListItem","position":4,"name":"PHO","url":"https://etfiq.com/funds/pho"},{"@type":"ListItem","position":5,"name":"CGW","url":"https://etfiq.com/funds/cgw"},{"@type":"ListItem","position":6,"name":"FIW","url":"https://etfiq.com/funds/fiw"}]},{"@type":"Dataset","name":"The most concentrated water ETFs","description":"The most concentrated water ETFs, ranked by the share of the fund held in its ten largest positions, as of Oct 20, 2026.","url":"https://etfiq.com/rankings/themes-concentrated-water","dateModified":"2026-10-20","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 most concentrated water ETFs","item":"https://etfiq.com/rankings/themes-concentrated-water"}]},{"@type":"WebPage","name":"The most concentrated water ETFs","description":"The most concentrated water ETFs, ranked by the share of the fund held in its ten largest positions, as of Oct 20, 2026.","url":"https://etfiq.com/rankings/themes-concentrated-water","dateModified":"2026-10-20","isPartOf":{"@type":"WebSite","name":"ETFIQ","url":"https://etfiq.com"},"speakable":{"@type":"SpeakableSpecification","cssSelector":[".lede"]},"publisher":{"@id":"https://etfiq.com/#org"}}],"characters":2707,"truncated":false,"content":"ETFIQ / Rankings / The most concentrated water ETFs \n \n As of Oct 20, 2026 . Rebuilt every trading night.\n The most concentrated water ETFs\n See 6 funds ranked by the share of the fund held in its ten largest positions. Updated Oct 20, 2026. Two funds on one theme can hold ten names or two hundred. Fund names do not show which.\n The most concentrated water ETFs, ranked by the share of the fund held in its ten largest positions, as of Oct 20, 2026. Source: ETFIQ. # Ticker Fund Top ten weight Holdings Net assets Total return, 1Y \n 1 TBLU Tortoise Global Water ETF 60.2% 58 $53m \u22123.4% \n 2 PIO Invesco Global Water ETF 59.2% 43 $270m \u22122.4% \n 3 AQWA Global X Clean Water ETF 58.2% 40 $20m \u22125.7% \n 4 PHO Invesco Water Resources ETF 57.9% 42 $2.0bn \u22124.4% \n 5 CGW Invesco S&P Global Water Index ETF 55.5% 76 $1.0bn 0.0% \n 6 FIW First Trust Water ETF 40.9% 36 $1.8bn \u22125.7% \n \n Method\n The 6 of 6 ETFs in the water theme with a filed book, most concentrated first. Across the funds listed here the weight in the ten largest runs from 40.9% to 60.2%. Concentration is not a fault. It shows how much rides on ten holdings. The list sorts one published figure, with no scoring or weighting. Every fund ETFIQ covers in this category is eligible, closed funds included.\n Where to next\n Every water ETF and what it holds The largest water ETFs Where these figures came from\n Fund holdings from SEC Form N-PORT and from the issuers 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 ETFIQ links to the documents behind every figure; a link is not an endorsement.\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 most concentrated water ETFs, ranked by the share of the fund held in its ten largest positions, data as of Oct 20, 2026. https://etfiq.com/rankings/themes-concentrated-water Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms. The underlying files are at Open data .\n Other forms Plain ETFIQ, The most concentrated water ETFs, ranked by the share of the fund held in its ten largest positions, data as of Oct 20, 2026. https://etfiq.com/rankings/themes-concentrated-water APA ETFIQ. (Oct 20, 2026). The most concentrated water ETFs, ranked by the share of the fund held in its ten largest positions. Retrieved from https://etfiq.com/rankings/themes-concentrated-water Markdown [The most concentrated water ETFs, ranked by the share of the fund held in its ten largest positions (ETFIQ, Oct 20, 2026)](https://etfiq.com/rankings/themes-concentrated-water)","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":"Figures ETFIQ computes are free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms.","citation":"ETFIQ, The most concentrated water ETFs, ranked by the share of the fund held in its ten largest positions, data as of Oct 20, 2026. https://etfiq.com/rankings/themes-concentrated-water"}