Executives are exploiting strong demand for new bonds in investment-grade and high-yield debt markets to penetrate US debt markets.

Some finance chiefs expect high borrowing costs to persist, with some borrowers willing to lean in.

High-grade and junk debt markets issued $110 billion of bonds worldwide last week, marking the busiest September start ever.

Investors and corporations are unsure when borrowing costs will peak, and economists predict the Fed will raise rates one more time this year due to a robust US economy.