A bond with a speculative credit rating of BB ( S&P ) or Ba (Moody's) or lower is a junk or high yield bond. Such bonds offer investors higher yields than bonds of financially sound companies. Two agencies, Standard & Poors and Moody's investor services, provide the rating systems for companies' credit.
JUNK BOND
Meaning of JUNK BOND in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012