Masayoshi Son’s SoftBank made extra in Arm’s after-hours buying and selling on Wednesday than the whole quantity the corporate misplaced from its disastrous guess on now-bankrupt WeWork.

Arm shares rocketed as a lot as 41% late Wednesday after the chip designer reported income and earnings that sailed previous analysts’ estimates. SoftBank took Arm public in September and nonetheless owns about 930 million shares, or roughly 90% of the chip designer’s excellent inventory.

Arm pared its preliminary good points, however SoftBank’s stake nonetheless jumped by virtually $16 billion — from near $71.6 billion to $87.4 billion — after the earnings report. Softbank acquired Arm in 2016 for $32 billion, and its shares had been price simply over $47 billion on the time of the IPO final yr.

The Arm windfall follows a tough stretch for SoftBank’s funding portfolio.

The corporate’s most high-profile wager was in WeWork, which spiraled into chapter 11 in November after the office-sharing firm spent years burning by billions of {dollars} in money from SoftBank at sky-high valuations. The Imaginative and prescient Fund, SoftBank’s enterprise arm, posted a $6.2 billion loss within the second quarter of 2023, tied to WeWork and different soured bets.

SoftBank advised traders in November that its cumulative loss on WeWork exceeded $14 billion. In 2022, after a $32 billion loss within the Imaginative and prescient Fund, Son prompt that SoftBank would shift away from aggressive investments and into “protection” mode, promoting down stakes in Alibaba and making ready to take Arm public. A bit of greater than a yr later, as hype over synthetic intelligence mounted, Son stated Softbank would swap again into “offense” mode, pursuing investments in AI.

Son cannot but money in on his firm’s good points from Arm.

SoftBank is below a lock-up provision which prevents it from promoting its Arm shares, with sure exceptions, for 180 days after the inventory market debut. Arm went public in September, that means that the lock-up restriction expires in mid-March.

WATCH: Masa Son flexes Arm