iShares iBoxx $ High Yield Corporate Bond ETF (HYG) seeks to track the investment results of the Markit iBoxx USD Liquid High Yield Index, which comprises U.S. dollar-denominated, high yield corporate bonds issued by companies in the United States. The ETF provides exposure to a diversified portfolio of below-investment-grade corporate debt securities, including fixed-rate and floating-rate bonds across various maturities and sectors such as telecommunications, energy, healthcare, and consumer services; top holdings include CCO Holdings LLC, TransDigm Inc., Venture Global LNG Inc., Cloud Software Group Inc., and OneMain Finance Corp. HYG distributes income monthly and maintains a market capitalization exceeding tens of billions of dollars, with an expense ratio of 0.49%. Launched on April 4, 2007, and issued by BlackRock under the iShares brand, the ETF is headquartered in Wilmington, Delaware, as part of BlackRock's U.S. operations. In July 2025, BlackRock, HYG's sponsor, completed the acquisition of HPS Investment Partners to expand its capabilities in private credit, complementing its public fixed income offerings like HYG. No major index reconstitutions, product launches, or operational changes specific to HYG have been reported in 2024 or 2025. The ETF primarily serves institutional and retail investors seeking high yield income with moderate duration risk, focusing on liquid U.S. high yield markets.