Japanese companies are issuing a record‑sized volume of BBB-rated corporate bonds that include covenant shelters, outpacing the total sales of all bonds in 2025.

The market shift is evident as these bonds now represent more than half of the total corporate debt issued by firms in Japan this year, a dramatic increase from the modest levels seen in previous months.

Lower‑rated borrowers are turning to this strategy because it offers them a structured way to secure financing while still providing investors with a safety net. The covenant shelter protects investors if the issuer's financial health deteriorates, giving the bonds a more attractive risk‑return profile.

The trend indicates a broader move away from traditional bank loans, with companies seeking the flexibility of the bond market. This shift could reshape Japan’s corporate financing landscape, encouraging more issuers to consider covenant‑protected instruments.