7.57% Yield: Safe & Stable Enough In Times Of Market Uncertainty? | JBBB vs JAAA

Looking for higher-yielding income investments? JBBB is paying 7.57%, with monthly cash payouts, even as rates move lower on the short-end & markets are near all-time highs. Is JBBB safe & stable enough for you? What's our perspective? Or is JAAA better?