Nikkei 225 gains 1.7 percent as AI rally extends after close
Published on 10/27/2026 at 19:09 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWSAI appetite and upcoming catalysts
- The Nikkei 225 closed at 63,268 points on October 27, up 1,079 points or 1.7 percent.
- Anthropic's IPO filing revived AI demand after the Philadelphia semiconductor index rose 2.8 percent.
- Advantest led Nikkei 225 gainers with an 9.0 percent rise, while Daiichi Sankyo fell 8.2 percent.
- Advantest is scheduled to release earnings after 3:30 p.m. JST on October 28.
The Nikkei 225 closed at 63,268 points on October 27, up 1,079 points or 1.7 percent, as optimism returned to artificial intelligence stocks after Anthropic filed for an initial public offering. Fidelity reported that the index ended a three-session losing streak.
Advantest surged 9.0 percent and gave the Nikkei 225 its biggest boost, while December Nikkei futures settled at 63,500 points at 3:52 p.m. JST, up 1,300 points. Jiji Press recorded the post-close futures move.
Why did the Nikkei 225 rebound?
Anthropic's filing disclosed rapid revenue growth despite steep losses, easing concerns about the funding of artificial intelligence investment. The Philadelphia semiconductor index rose 2.8 percent overnight, supporting Japanese chip shares. Daisuke Hashizume, a senior strategist at Daiwa Securities, said the market was relieved by the filing while investors stayed cautious before major US technology earnings. Fidelity carried his assessment.
Winners and losers in the Nikkei 225
Winners and losers at the Tokyo close came from the same session, according to Investing.com:
- Advantest up 9.0 percent: AI optimism lifted chip-testing shares.
- Ibiden up 8.5 percent.
- SUMCO up 5.5 percent.
- Daiichi Sankyo down 8.2 percent.
- Japan Exchange Group down 4.8 percent after results fell short of market expectations.
- Mitsubishi Estate down 4.0 percent.
There were 124 advancers and 100 decliners among Nikkei 225 members. Across the Tokyo Stock Exchange, 1,726 stocks rose, 1,695 fell and 289 were unchanged. Fidelity supplied the Nikkei breadth figures.
AI shares led while the yen weakened
The dollar rose to 157.71 yen at 3:38 p.m. JST, while Japan's 10-year government bond yield reached 2.785 percent. The Nikkei Volatility index fell 9.9 percent to 34.46. OANDA linked the stronger dollar and lower US yields with the day's risk appetite.
Nonferrous metals, electrical equipment and banks rose, while real estate, pharmaceuticals and land transportation declined. The Nikkei gained 1.7 percent, compared with a 0.6 percent rise for the broader Topix. OANDA reported turnover of JPY 6.93 trillion on the Tokyo Stock Exchange Prime Market.
What comes next for the Nikkei 225
- October 28, 2026, after 3:30 p.m. JST: Advantest is scheduled to release earnings, according to Note.
- October 29-30, 2026: The Bank of Japan is scheduled to hold its monetary policy meeting, with the policy rate expected at 1.25 percent. TradingView reported the schedule.
Nikkei 225 price data for October 27, 2026
The Nikkei 225 closed at 63,268 points on October 27 at the Tokyo close, Jiji Press reported. It rose 1,079 points or 1.7 percent from the October 26 close of 62,190 points.
Nikkei 225 by the numbers on October 27, 2026
- Index: Nikkei 225
- Home exchange: Tokyo Stock Exchange, Japan
- Close on October 27, 2026: 63,268 points
- Change versus previous close of October 26, 2026: up 1,079 points (up 1.7 percent)
- Previous close: 62,190 points
- Top gainer: Advantest up 9.0 percent
- Top loser: Daiichi Sankyo down 8.2 percent
- Next scheduled event: October 28, 2026, after 3:30 p.m. JST: Advantest earnings
