The Japanese stock market saw a sharp rally during Tuesday’s trading session (October 27), with the Nikkei 225 index jumping more than 2% to approach the 63,500 level. This gain snapped a three-session losing streak, fueled by positive sentiment from Wall Street that triggered a massive buying spree in Japanese tech stocks. Optimism surrounding the artificial intelligence (AI) sector has reignited following an initial public offering (IPO) filing by the U.S.-based AI company, Anthropic PBC.
Anthropic’s IPO filing served as a key catalyst for the recovery in global tech stocks. The AI developer reported rapid revenue growth, even as it continues to face high operational costs and the various risks inherent in technology development. This development has revived investor interest in the AI sector following a sell-off the previous week. Nevertheless, market attention has now shifted toward the ability of tech companies to generate profits commensurate with the massive investments they have made.
The rise in the Nikkei index was driven primarily by stocks in the semiconductor and technology sectors. Advantest surged 7.8%, SoftBank Group climbed 4.8%, while Kioxia and Tokyo Electron each gained 3.3%. These gains reflect a recovery in demand for companies involved in developing AI infrastructure. Investors are also awaiting earnings reports from several U.S. tech giants this week to gauge whether the heavy spending on data centers, chips, and AI computing is beginning to yield tangible results.
Meanwhile, market participants remain focused on upcoming interest rate decisions from major central banks—the U.S. Federal Reserve (The Fed), the Bank of Japan (BOJ), and the European Central Bank (ECB). All three are expected to keep interest rates unchanged at their respective meetings, though the risk of further monetary tightening remains a concern. Positive sentiment has also been bolstered by a decline in global oil prices, following diplomatic developments involving Iran and several other nations in the region. Easing pressure on energy costs could help alleviate inflation concerns while improving the outlook for corporate operating expenses.
Looking ahead, the sustainability of the Nikkei index’s rally will depend on earnings reports from technology companies, developments in artificial intelligence (AI) investments, and the direction of global monetary policy. If financial results show strong profit growth, Japanese tech stocks may maintain their upward momentum. Conversely, disappointing results or more "hawkish" (policy-tightening-leaning) statements from central banks could trigger profit-taking. This surge in the Nikkei index signals a recovery in investor optimism; however, it remains to be seen whether the resurgence in the AI sector is robust enough to drive a sustained rally.