Junk Bond Bubble In Pictures: Deflation Up Next By: TalkMarkets July 17, 2019 at 21:20 PM EDT The highest grade AAA corporate bonds yield 2.75%. BBB-rated corporate bonds, just one step above junk, 3.5%. BB-rated bonds yield just 4.28%. Read More >> Related Stocks: High Yield Corp Bond Ishares Iboxx $ ETF JNK