# The largest water ETFs

> The largest water ETFs, ranked by net assets, as of Oct 2, 2026. 5 funds from ETFIQ’s own published figures. A ranking is not a recommendation.

Data as of Oct 2, 2026. Rebuilt every trading night.

As of Oct 2, 2026 . Rebuilt every trading night.

## The largest water ETFs

Every fund here is sold on water. What each one holds, and how much of it the S&P 500 already holds for you, is the column beside the size.

| # | Ticker | Fund | Net assets | Weight in S&P 500 companies | Total return, 1Y | Fee | Source |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | PHO | Invesco Water Resources ETF | $1.9bn | 61.3% | −5.8% | 0.59% | Issuer holdings, Oct 3, 2026 |
| 2 | FIW | First Trust Water ETF | $1.7bn | 48.1% | −7.0% | 0.50% | Issuer page, Oct 2, 2026 |
| 3 | CGW | Invesco S&P Global Water Index ETF | $1.0bn | 25.6% | −0.3% | 0.58% | Issuer holdings, Oct 3, 2026 |
| 4 | PIO | Invesco Global Water ETF | $262m | 39.1% | −3.1% | 0.75% | Issuer holdings, Oct 3, 2026 |
| 5 | AQWA | Global X Clean Water ETF | $20m | 19.5% | −5.4% | 0.50% | Issuer daily, Oct 2, 2026 |

### Method

The 6 ETFs in the water theme, of which 5 publish net assets, ranked on the most recent figure for each. Across the funds listed here the weight held in S&P 500 companies runs from 19.5% to 61.3%. Size is not a measure of anything a fund did. It is where the money is. 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.

### Where to next

### 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.

A ranking is not a recommendation and no order on this site is an opinion. ETFIQ is an independent publisher, not an adviser. Standards and sources

Cite this page. ETFIQ, The largest water ETFs, ranked by net assets, data as of Oct 2, 2026. https://etfiq.com/rankings/themes-largest-water Free to use with attribution ; the underlying files are at Open data .

Other forms Plain ETFIQ, The largest water ETFs, ranked by net assets, data as of Oct 2, 2026. https://etfiq.com/rankings/themes-largest-water APA ETFIQ. (Oct 2, 2026). The largest water ETFs, ranked by net assets. Retrieved from https://etfiq.com/rankings/themes-largest-water Markdown [The largest water ETFs, ranked by net assets (ETFIQ, Oct 2, 2026)](https://etfiq.com/rankings/themes-largest-water)

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Source: ETFIQ, independent ETF data. Recomputed nightly from public filings and prices.
Cite: ETFIQ, as of Oct 2, 2026. https://etfiq.com/rankings/themes-largest-water
License: https://etfiq.com/standards/
HTML: https://etfiq.com/rankings/themes-largest-water