Themes · ranked by the annual fee the fund charges

The cheapest water ETFs

A fee is one fact and not a verdict on the fund. Where the funds on a theme hold different companies, the cheapest is not even the same bet, and the holdings are on the theme page.

Share on X Download as PDF Download CSV

#	Ticker	Fund	Fee ↑	Net assets	Weight in S&P 500 companies	Total return, 1Y
1	TBLU	Tortoise Global Water ESG Fund	0.40%	$0	not filed	−4.8%
2	AQWA	Global X Clean Water ETF	0.50%	$20m	19.5%	−5.4%
3	FIW	First Trust Water ETF	0.50%	$1.7bn	48.1%	−7.0%
4	CGW	Invesco S&P Global Water Index ETF	0.58%	$1.0bn	25.6%	−0.3%
5	PHO	Invesco Water Resources ETF	0.59%	$1.9bn	61.3%	−5.8%
6	PIO	Invesco Global Water ETF	0.75%	$262m	39.1%	−3.1%

The cheapest water ETFs, ranked by the annual fee the fund charges, as of Oct 2, 2026. Source: ETFIQ.

Method

The 6 of 6 ETFs in the water theme that publish an expense ratio, cheapest first. Across the funds listed here the annual fee runs from 0.4% to 0.8%. A fee is the one number a fund controls and the one a holder pays whatever happens. The ranking is the published field sorted, nothing else: no scoring, no weighting and no view on any fund. Every fund ETFIQ covers in this category is eligible, including funds that have closed, because leaving them out would flatter the category.

How these figures are computed →Standards and sources →

Where to next

Every water ETF and what it holds→The largest water ETFs5 →

Where these figures came from

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. It is not affiliated with any issuer, and a link is not an endorsement. A ranking is not a recommendation and no order on this site is an opinion. ETFIQ is an independent publisher, not an adviser.

Cite this page

ETFIQ, The cheapest water ETFs, ranked by the annual fee the fund charges, data as of Oct 2, 2026. https://etfiq.com/rankings/themes-cheapest-water

Open data →

Free to use with attribution; the underlying files are at Open data.