U.S. high yield's quiet quality upgrade is creating mis-priced opportunity – just as the AI trade starts to fade.
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Welcome back to The Weekly Fix. In this episode, we're taking a break from the AI trade and turning to some of the less glamorous corners of the fixed income and credit markets.
Unlike equities, the biggest winners in credit are rarely the companies doing the most exciting things. In fact, it's usually the opposite. They're usually the ones becoming less risky — and the ones where uncertainty is decreasing.
The second quarter gave us a few clear examples of this. Take Paramount. Paramount's hybrid debt fell sharply in the first quarter as capital structure and leverage concerns related to the pending Warner Brothers acquisition forced a downgrade to high yield. In the second quarter, the hybrids returned over 19%, in just one quarter. Paramount's hybrids didn't rally because its operating performance materially improved overnight. They rallied because execution and financing risk around the transaction was reduced, and generated a return multiple of more than 8x the high yield index over the quarter as a result.
Now Paramount's situation is not resolved, but the impact of less uncertainty was profound.
This framing matters right now because the AI tailwind investors have been reliant on may be starting to wane with AI-related issuance finally beginning to test investor appetite for corporate bonds.
As a result, investors are starting to ask themselves a different question: who are the borrowers that are becoming less risky, not more. And one — continuously under-appreciated — answer is the US high yield market itself.
Since the financial crisis, the quality of the US high yield corporate bond universe has migrated meaningfully higher: BBs now make up roughly half the index versus a third pre-2010, while CCCs have shrunk. The issuer base is larger and more mature, with more secured bonds and fewer aggressive LBO structures as the riskiest borrowing has migrated to leveraged loans and private credit. In other words, the high yield market has effectively exported much of its historical tail risk elsewhere.
The catch is, high yield spreads of roughly 270 basis points, compared to a historical average of over 500 basis points, look extremely tight today. But index-level spreads are masking the dispersion of mis-priced uncertainty lying under the hood. And that makes this an exciting time to be an active manager, because by being able to capitalize on this mispriced uncertainty is how we look to add value.
So, while investors remain hyper-focused — no pun intended — on the AI story, they may be overlooking a number of issuers and sectors quietly becoming the unsung heroes of US credit markets generating meaningful returns in portfolios.
That's The Weekly Fix. See you next week.
Key takeaways
The U.S. high yield market has undergone a meaningful quality transformation since the financial crisis: BB-rated bonds now make up roughly half the index compared to a third pre-2010, while CCC-rated issuers have shrunk. The riskiest borrowing has migrated to leveraged loans and private credit, effectively exporting much of high yield's historical tail risk.
Current high yield spreads look extremely tight relative to the historical average. However, index-level spreads are masking significant dispersion of mis-priced uncertainty beneath the surface, creating a compelling environment for active managers to add value.
The Paramount hybrid debt example illustrates the power of declining uncertainty in credit: after falling sharply in Q1 on capital structure concerns tied to the Warner Brothers acquisition, Paramount's hybrids returned over 19% in Q2 alone, generating a return more than 8x the high yield index for the quarter. (Source: Bloomberg as of 6.30.26)