SoftBank sinks over 8% as global tech stocks tumble, tracking Wall Street losses

The move signals growing investor anxiety over whether the AI-driven rally that powered the past two years has stretched valuations past their foundations, and it puts a spotlight on how fragile the optimism around machine intelligence can become when the mood shifts.

A synchronized slide across continents

The selloff wasn't a regional wobble — it was a coordinated retreat. CNBC reported SoftBank's drop as the headline casualty, but the same trading session dragged down chipmakers and AI-heavy indexes from Seoul to Mumbai. South Korea's KOSPI fell 124.91 points, or 1.62%, to 7,605.91 by late morning local time on June 11, after opening nearly 3% lower. The catalyst came overnight from the United States, where the Dow Jones Industrial Average slid 1.87%, the S&P 500 dropped 1.62%, and the tech-heavy Nasdaq Composite fell 1.98%.

Within that, the damage concentrated in names most exposed to the AI buildout. Nvidia lost 3.73%, Broadcom dropped 5.12%, AMD fell 4.86%, and Super Micro Computer cratered 28%. Indian IT giants felt the same gravity — Infosys, HCL Tech, and TCS all tumbled, while smaller AI infrastructure plays like E2E Networks and Netweb shed up to 5%, according to Moneycontrol.

What the turbulence is actually telling us

Beneath the red numbers sits a debate analysts have been postponing for months. Investors are no longer simply celebrating AI breakthroughs — they're asking whether public-company valuations have fully digested the timeline for returns. Mirae Asset Securities analyst Seo Sang-young told Yonhap that even softer-than-expected US inflation data wasn't enough to calm nerves, because markets remain uncertain about the Federal Reserve's next move.

That uncertainty matters more than any single trading day. The companies at the center of this storm aren't speculative shells — they're the firms building the physical and software infrastructure for what may be the most consequential technology shift in a generation. A reset in their stock prices doesn't invalidate the underlying innovation; it tests whether the market is pricing it honestly.

Two forces are colliding in real time. First, a genuine repricing of risk: when Super Micro loses a quarter of its value in a session, the market is admitting that some AI-adjacent businesses were priced for perfection. Second, a geopolitical shock layered on top — reports of additional US strikes against Iran and Iranian threats to target shipping in the Strait of Hormuz reminded investors that energy security and tech valuations share a fault line. Yet the longer view is steadier than the headlines suggest. Samsung Electronics slipped 1.49%, but its memory-chip rival SK hynix actually rose 0.63% — a reminder that the AI economy isn't monolithic, and that the companies powering data centers continue to find real demand. The May US Consumer Price Index came in below expectations, a quiet but meaningful signal that the macro backdrop for innovation spending hasn't collapsed.

Signals worth watching

For anyone tracking the intersection of markets and progress, three data points will shape the next chapter: whether the Nasdaq stabilizes or extends its slide in the coming sessions, how chipmakers report their AI-revenue mix in upcoming earnings, and whether the diplomatic situation around the Strait of Hormuz de-escalates or tightens. A healthy correction clears speculation; a disorderly one chokes investment. Right now, the market is doing its job — separating the companies building durable AI infrastructure from those riding the narrative.