Japan's Nikkei 225 Index Plunges 4.77% at Market Close

Key Facts

The Japanese Nikkei 225 index closed sharply lower, falling 4.77% at the end of today's trading on October 15, 2026. Investing.com reported that Japanese equity markets experienced a significant sell-off, with the benchmark index losing nearly 5% of its value by the market close.

The decline follows a period of volatility previously noted in the chip and metals sectors. In terms of broader economic context, household spending in Japan was reported to have decreased by 3.1% year-on-year on October 8, 2026, which was slightly better than the forecasted 3.6% contraction.