SoftBank’s sharp 10% slide on Wednesday became the defining symbol of a broader rout across Asia’s technology markets, as the region absorbed the full force of Wall Street’s overnight tech sell‑off.
The reversal ended a brief rebound in chipmakers and reignited concerns that valuations across the artificial‑intelligence complex have run too hot for too long.
The immediate pressure on SoftBank stemmed from reports that its attempt to raise at least $6 billion through a margin loan backed by its OpenAI stake had stalled.
That setback landed at a moment when sentiment toward high‑growth tech names was becoming more fragile, amplifying the downside.
Investors rotated out of risk, hitting Japan’s semiconductor ecosystem: Advantest and Renesas both fell more than 3%, while South Korea’s SK Hynix plunged over 8% and Samsung Electronics dropped 7.45%.
Taiwan’s TSMC and Hon Hai were also dragged lower.
A deeper structural worry is now taking hold. Massive AI‑related fundraising — including upcoming listings for SpaceX, Anthropic and OpenAI — appears to be siphoning capital away from publicly traded tech stocks.
Some investors see this as the early stage of a rotation; others fear it signals overheating. For Japan, one unexpected beneficiary could be defence contractors, with strategists suggesting a shift toward “heavies” as retail traders search for stability.


