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Nikkei Firms Amid Semiconductor Recovery

By Stocks Desk · 2026-09-17 · 2 min read
A polished silicon wafer resting on a clean white surface
Illustration: Tradingbird

The Nikkei 225 index climbed above 64,200 in afternoon trading, supported by U.S. futures gains and dip-buying in AI and semiconductor stocks.

The Nikkei Stock Average firmed in the afternoon session on the Tokyo Stock Exchange, settling near the 64,200 mark. This represents a gain of more than 300 points compared to the previous day's close. The index had briefly surged over 700 points in the morning, driven by the prior night's strength in U.S. semiconductor stocks. However, initial buying momentum faded into profit-taking before recovering in the afternoon.

External factors played a significant role in the index's performance. Rising U.S. stock index futures during Japan's trading hours provided immediate support. Additionally, firm trading in South Korean and Taiwanese indices, both heavily weighted toward technology sectors, reinforced the positive sentiment. Dip-buying activity emerged in artificial intelligence and semiconductor-related names that had declined earlier in the day, helping to stabilize the broader market.

Corporate Movers Drive Index Gains

Major conglomerates led the afternoon rally, with SoftBank Group and Fast Retailing continuing to trade higher. Recruit, Konami Group, and Nintendo widened their gains during the second session. In the semiconductor sector, Tokyo Electron and Advantest narrowed their morning losses, while Ibiden, Murata Manufacturing, and Sumitomo Metal Mining remained under pressure. This divergence highlights the selective nature of the buying, which focused on high-priced technology leaders rather than a broad sector-wide surge.

Institutional Flows Signal Confidence

Trading volumes on the Prime Market reached approximately 3.98 trillion yen by 12:45 p.m., with 1.025 billion shares exchanged. Off-hours basket trades involving large domestic and foreign institutional investors totaled roughly 47.2 billion yen, or about 302.3 million dollars. These large-scale transactions indicate that institutional money is actively repositioning into Japanese equities, particularly in the technology segment, following the previous day's U.S. market signals.

Market Sentiment And Future Outlook

Investors are now monitoring the extent of buybacks in semiconductor-related stocks as a key indicator of sustained demand. The decline in U.S. crude oil futures also contributed to a more favorable risk environment. According to GN stocks/chips, the market's focus remains on how far the recovery in high-tech names extends, with U.S. futures movements and Asian regional price action serving as the primary guides for the remainder of the session.

Based on reporting by biggo.com, compiled by the Tradingbird desk.

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