Junk bonds are heading for worst month since 2022 after punishing global selloff

September has delivered a punishing stretch for U.S. high-yield corporate bonds, putting the asset class on track for its worst monthly performance since 2022. The selloff has been broad enough that elevated yields — normally the cushion that softens price declines for junk bond holders — have not been sufficient to offset losses this month as market volatility picked up.

The development matters because high-yield bonds sit at the intersection of credit and equity risk. They are issued by companies with lower credit ratings, so their prices tend to reflect both interest-rate expectations and investors' confidence in borrowers' ability to service debt. When junk bonds weaken sharply, it can signal that markets are repricing credit risk more broadly, not just reacting to rate moves.

What to watch from here: whether the weakness stays contained to price declines or starts showing up in credit spreads and default expectations, and whether volatility in other markets — equities in particular — continues to spill over. For now, the episode is a reminder that a high coupon does not guarantee a positive total return over short periods.