SoftBank's Stock Jumps as Market Tailwinds Mask a Costly AI Reckoning

SoftBank Group shares have been on a tear, climbing 13% on Wednesday as investors shook off the company's quarterly losses and piled back into Japanese technology names. The advance follows a broader rally across Asian tech stocks, with traders pointing to renewed buying in chipmakers and a pullback in oil prices that eased inflation worries. The upbeat market backdrop had already taken shape before SoftBank's results hit the tape, and the stock's resilience suggests shareholders are treating the loss as a one-off rather than a verdict on the group's AI strategy.

That loss is considerable. For the three months through September 30, 2026 — the second quarter of SoftBank's fiscal year — the group posted a net loss attributable to owners of ¥1.12 trillion, a sharp reversal from a ¥2.50 trillion profit in the same period a year earlier, according to Reuters.

Power Equipment Rethink Burns a Hole in the Quarter

A ¥597.25 billion loss tied to revised procurement plans for power generation equipment for U.S. AI data centers accounted for a large chunk of the damage, with higher financing costs adding further pressure. The write-down stems from changed specifications for the power supply infrastructure underpinning SoftBank's American AI projects — a reminder that the group's aggressive buildout carries real balance-sheet risk.

Malaysia Venture Sets Sights on Five Gigawatts

On the expansion front, SoftBank has signed joint development agreements with Grab Holdings and Petroleum Sarawak Berhad (PETROS) to build AI infrastructure in Malaysia. The partners have announced an initial joint capital commitment of US$1.85 billion, with SoftBank slated to contribute US$1 billion, Grab US$750 million and PETROS US$100 million. Longer term, the trio is targeting at least five gigawatts of AI computing capacity. The capital contributions are proposed rather than funds already paid in.

Beijing's Veto Throws ABB Robotics Deal Into Doubt

Less welcome is the news from China, where the authority for the security review of foreign investment has blocked SoftBank's acquisition of ABB's Chinese robotics business. SoftBank said Friday it remains in close dialogue with ABB and that both sides are working constructively on the transaction, though no final outcome for the broader takeover has been disclosed.

The twin developments — a costly write-down on one side of the AI ledger and a fresh multi-billion-dollar commitment on the other — frame the central question facing SoftBank: whether its infrastructure bets can outrun the financing costs and regulatory hurdles piling up around them. For now, the market appears willing to give the group the benefit of the doubt.