Invesco Water Resources ETF (PHO) is an exchange-traded fund that seeks to track the investment results of the Nasdaq OMX US Water Index, a modified liquidity-weighted index comprising US exchange-listed companies involved in the development and purification of water resources for homes, businesses, and industries. The fund invests at least 90% of its total assets in common stocks, American depositary receipts, and global depositary receipts of water industry companies; its portfolio includes top holdings such as Ferguson Enterprises Inc., Xylem Inc., Ecolab Inc., American Water Works Company Inc., Roper Technologies Inc., Core & Main Inc., A.O. Smith Corp., AECOM, Pentair plc, and Veralto Corp., spanning sectors like industrials, information technology, utilities, materials, and health care. With approximately 36-38 holdings, a total expense ratio of 0.59%, and assets under management exceeding $2.3 billion, PHO provides exposure primarily to US-based firms (over 98% allocation), with minor positions in Brazil and Canada.
Launched on December 6, 2005, and listed on Nasdaq, the fund is issued and managed by Invesco Ltd., headquartered in Atlanta, Georgia, with quarterly rebalancing and annual reconstitution in April.
Recent developments include sustained growth in assets under management amid heightened investor interest in water infrastructure themes, driven by US government allocations such as the $50 billion from the Infrastructure Investment and Jobs Act supporting water sector upgrades; the fund has also adjusted its holdings portfolio through regular index reconstitutions, notably reflecting ongoing sector shifts like increased emphasis on smart water technologies and purification amid global scarcity challenges.