Sixty billion dollars is a lot of bond, even by SoftBank Group’s standards. The Japanese conglomerate is reportedly preparing to raise up to that much in fresh debt, according to Bloomberg, a target that would eclipse anything Masayoshi Son’s firm has sold before and that lands squarely behind its swelling bet on OpenAI.

The plan follows a run of smaller raises, including a record ¥600bn ($4.1bn) retail bond and a string of dollar and euro deals aimed at overseas buyers.

It also sits atop a tower of borrowing already built for OpenAI, from a $40bn bridge loan to a still-pending $10bn margin loan secured against SoftBank’s OpenAI shares.

The $60bn is best read as a ceiling rather than a single confirmed deal, a figure that would cover multiple tranches spread across currencies and investor types, not one institutional blockbuster.

SoftBank has issued roughly $7.8bn of bonds during 2026 so far, so treating the number as a programme target rather than a lump sum makes the arithmetic a shade less startling. Even framed that way, it signals an ambition to borrow at a pace the group has never attempted.