SOXS makes big, bearish bets against the highly concentrated semiconductor industry by using swap agreements, futures contracts, and short positions. The fund provides -3x exposure to an index of the 30 largest US-listed semiconductor companies, including manufacturers and providers of services or equipment associated with semiconductors. Index holdings are weighted by market-cap, with the weights of the top five securities capped at 8% and the remaining securities at 4%. The index may include ADRs, whose cumulative weight is capped at 10%. SOXS rebalances its exposure on a daily basis, thus, holding it for longer periods will expose the investor to compounding effects of the daily rebalancing. Prior to August 25, 2021, the fund tracked the PHLX Semiconductor Sector Index.