The number of rated U.S. defaults ticked up to 86 in 2024 from 82 the previous year as stubborn inflation and higher-for-longer interest rates strained cash flows for some issuers. The consumer services sector led defaults (26), followed by health care/chemicals (16), aerospace/automotive/capital goods/metal (14), and leisure time/media (14). Together, these four sectors accounted for 72% of U.S. corporate defaults in 2024. Meanwhile, downgrades decreased from the previous year. Also, upgrades outpaced downgrades, reversing the trend from 2023, when credit quality deteriorated, particularly among speculative-grade-rated issuers. The U.S. speculative-grade default rate rose to 5.13% in 2024--the highest since 2020--from 4.48% the previous year (see chart 1 and table 1). The data included in this study is as of Jan. 1,