Tokyo Stocks: Nikkei 225 and TOPIX Daily — 2026-10-17

The Nikkei 225 snapped a six-session losing streak on October 16, closing higher as bargain hunters and semiconductor buybacks lifted the index. The rebound followed a severe 5% plunge on October 15 driven by US inflation data and AI sector concerns, which marked the third-largest daily drop in history.

Nikkei Snaps Record Losing Streak as AI Rout Reverses

Top developments

Nikkei 225 Rebounds After Historic 5% Plunge

On Friday, October 16, the Nikkei 225 closed 898 yen higher at 65,324, ending a six-session losing streak. This recovery followed a dramatic 5.04% drop on Thursday, October 15, where the index fell 3,413 points to close at 64,332, marking the third-largest daily decline in history. The rebound was driven by bargain hunting and specific buybacks in semiconductor stocks that had been heavily sold off the previous day.

AI and Tech Sector Volatility Drives Weekly Loss

Despite the Friday rebound, the index remained on track for a weekly decline of nearly 5%. The volatility was largely attributed to a global sell-off in AI-linked stocks and technology sectors, triggered by higher-than-expected US inflation readings and subsequent rate hike concerns. The broader TOPIX index rose 1.83% to 4,072.71 on Friday but also faced a weekly headwind.

Yen Stability Amid BoJ Policy Anticipation

The Japanese yen remained relatively stable despite the stock market turmoil, staying within a three-week range against the US dollar. Traders are closely watching for the Bank of Japan's next policy decision, with Policy Board member Koeda's comments on rate hikes influencing sentiment. The yen's stability suggests that the equity sell-off was driven more by global tech factors than immediate domestic currency crises.

Local view

Nikkei Newspaper Reports Historic Decline

The Nikkei reported that the October 15 close represented a 3,318 yen drop (adjusted for intraday figures), marking the third-largest decline in the index's history. Local media emphasized the impact of US rate hike speculation on Japanese exporters and the broader market sentiment. The report highlighted that the Nikkei briefly fell below the 66,000 yen level for the first time in three weeks.

Local Analysts Watch for Buyback Support

Zaikei Shimbun noted that the afternoon session on October 15 started with a 3,385 yen drop, with major tech stocks like Advantest and Lasertec leading the decline. However, local commentary on October 16 pointed to "bottom-fishing" and futures buying as key factors in the stabilization of the index. Analysts are now looking at whether corporate buybacks will continue to support the market amid governance reforms.

Context & numbers

• Nikkei 225 Close (Oct 16): 65,324 (+898 yen)
• Nikkei 225 Close (Oct 15): 64,332 (-3,413 yen, -5.04%)
• TOPIX Close (Oct 16): 4,072.71 (+1.83%)
• 10-Year JGB Yield: Held steady at 2.93% on October 16
• Weekly Trend: Nikkei down ~5% for the week ending Oct 16

On the radar

• US Midterm Elections: Investors are exercising caution ahead of upcoming US political events, which could influence global risk sentiment.
• Corporate Earnings Season: The market is bracing for the start of the main corporate earnings season, which will be a key test for the AI and tech sectors' valuations.
• Governance Reform Milestones: Recent reports highlight ongoing TSE governance reforms, with analysts from Harvard Law School suggesting these could propel equities to new heights in the long term.