iShares U.S. Power Infrastructure ETF(AMEX:POWR)

POWR provides exposure to US equities involved in power infrastructure. From a broad index universe of 1,500 companies, the fund considers securities deriving at least 50% of their revenue from US power infrastructure-related businesses, excluding certain oil and gas companies not involved in natural gas, as defined by FactSet RBICS. The power infrastructure-related businesses include the sub-themes: (1) energy supply for electrification, (2) power generation and transmission, and (3) power distribution and storage. The fund assigns each identified company to one of the sub-themes based on their primary source of revenue or other factors that include a companys business description when revenue is unclear. The portfolio weighted by market cap, subject to capping constraints. The fund is reconstituted annually and rebalanced quarterly. Prior to October 29, 2025, the fund was known as the iShares MSCI Global Energy Producers ETF, which traded under the ticker symbol FILL.