MultiPlan Inc., the health-care cost-management company being acquired by BC Partners Ltd. and Silver Lake, is marketing debt in the busiest July for corporate bond sales since at least 1998.

MultiPlan may sell $650 million to $675 million of bonds to pay for the acquisition, according to a person familiar with the transaction. It may also get $1.375 billion of loans, said the person, who declined to be identified because terms aren’t set.

Sales of corporate bonds have jumped to $84.6 billion this month, surpassing the previous July record of $71.1 billion set last year, according to data compiled by Bloomberg, which goes back to 1999. Companies are selling debt as they take advantage of low yields and because of “positive momentum” from better- than-expected earnings, said Rajeev Sharma, a money manager at First Investors Management in New York. [Read More]