SOXX is passively managed to provide concentrated exposure to the 30 largest US-listed semiconductor companies. This includes (i) manufacturers of materials with semiconductors that are used in electronic applications or in LED and OLED technology and (ii) providers of services or equipment associated with semiconductors. To be eligible for the index, companies must meet investability and liquidity requirements, including a minimum market-cap of $100 million. The index employs market-cap-weighting with a capping methodologythe weights of the top five securities are capped at 8% and the remaining securities at 4%. SOXX may also hold ADRs, whose cumulative weight in the index is capped at 10%. The fund uses a sampling strategy to track its index, which is reconstituted annually and rebalanced on a quarterly basis. Prior to June 21, 2021, the fund was named iShares PHLX Semiconductor ETF and tracked the PHLX Semiconductor Sector Index