NEW YORK (S&P Global Ratings) May 29, 2024--S&P Global Ratings today took various actions on its fund credit quality ratings (FCQRs) and fund volatility ratings (FVRs) on 102 iShares fixed-income exchange-traded funds (ETFs). (See the Ratings List.) We raised eight FCQRs, lowered two, and affirmed 87. We also placed our ratings on four ETFs on CreditWatch with negative implications and on one ETF on CreditWatch with positive implications. In general, changes in FCQRs stemmed from changes in the constituents of the underlying indices and, consequently, gradual changes in the weighted average credit risk of the ETFs' portfolios of investments. The components of the underlying indices typically change over time depending on market conditions and issuance trends. We raised the FCQRs