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About iShares U.S. Healthcare ETF

IYH represents the healthcare segment by holding an assortment of the largest pharma, health care and biotech companies in the US. The fund tracks an index of large- and midcap companies in the healthcare sector, which consists of pharmaceuticals, biotechnology, healthcare services and equipment companies. Stocks within IYH are selected and weighted by float-adjusted market-cap. The index caps individual securities at 22.5% and also caps all issuers individually exceeding 4.5% to a maximum of 45% of the fund. Index rebalancing is done on a quarterly basis. Prior to September 20, 2021, the fund tracked the Dow Jones U.S. Health Care Index.