In finance, a high yield bond (non-investment grade bond, speculative grade bond or junk bond) is a bond that is rated below investment grade at the time of purchase. These bonds have a higher risk of default or other adverse credit events, but typically pay higher yields than better quality bonds in order to make them attractive to investors.
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Noun 1. a (speculative) bond with a credit rating of BB or lower; issued for leveraged buyouts and other takeovers by companies with questionable credit (synonym) junk bond (hypernym) bond, bond certificate