Key Takeaways:
The Nikkei 225 slumped more than 5% on July 17, entering a technical correction as a rout in Asian technology stocks deepened.
The decline tracked heavy selling of computer chipmakers and AI-related shares, with Tokyo Electron, Advantest and Kioxia among the biggest drags, according to an AP report. Taiwan Semiconductor Manufacturing Co. said it plans to spend an extra $100 billion on building fabrication plants in the US, adding to pressure on the sector.
Taiwan's benchmark index fell 5.9%, a day after TSMC's announcement. SoftBank Group Corp., a major tech investor, sank more than 9%. South Korean markets were closed for a holiday. The Nikkei has now fallen 12% from its 2026 peak, meeting the definition of a technical correction.
The selloff extends a global rotation out of AI and semiconductor stocks as investors reassess valuations after a prolonged rally. The next catalyst for direction will be US earnings reports due later this month, which will test whether AI-related revenue growth justifies current multiples.
The rout was broad-based across Asia, with technology-heavy indices bearing the brunt of selling. The Philadelphia Stock Exchange Semiconductor Index's overnight decline set the tone for Asian trading, as investors questioned whether the AI infrastructure buildout has been overpriced relative to near-term returns.
Traders pointed to three catalysts for the selloff: TSMC's massive US capex commitment raising concerns about margin dilution, a rotation out of high-multiple tech names into value sectors, and positioning adjustments ahead of key US earnings reports.
The Nikkei's 5% single-day decline marks its worst session since August 2024, when a yen carry trade unwind triggered a broader market rout. The index had rallied more than 20% from its 2024 lows before peaking earlier this year, driven by foreign inflows into Japan's semiconductor equipment and AI-linked stocks.
This article is for informational purposes only and does not constitute investment advice.
