The Federal Open Market Committee (FOMC) has increased the target interest rate by 3.75 percentage points since March 17, 2022. In this post we examine how corporate bond market functioning has evolved along with the changes in monetary policy through the lens of the U.S. Corporate Bond Market Distress Index (CMDI). We compare this evolution to the 2015 tightening cycle for context on how bond market conditions have evolved as rates increase. The overall CMDI has deteriorated but remains close to historical medians. The investment-grade CMDI index has deteriorated more than the high-yield, driven by low levels of primary market issuance.