Japanese equities rose in August 2026, supported by gains in U.S. technology stocks, but gave back some of those gains late in the month as uncertainty over the situation in the Middle East and movements in interest rates in Japan and the U.S. weighed on the market. Earnings releases confirmed stronger performance, prompting a view that earnings growth will continue to support share prices.
Japanese equities gained momentum in the first half of August 2026, supported by gains in U.S. technology stocks, but the advance narrowed late in the month as uncertainty over the situation in the Middle East and concerns about rising interest rates in Japan and the U.S. came into focus. This article summarizes these developments.
Recent earnings releases confirmed stronger performance at U.S. technology companies and Japanese companies, providing a catalyst for the rebound in Japanese equities. There is also a view that TOPIX has renewed its all-time high. Unless the earnings environment for companies changes sharply, share prices are expected to rise alongside earnings growth.
However, depending on developments in monetary policy in Japan and the U.S., interest rates could rise further and valuations could come under greater scrutiny. There are also numerous potential concerns, including excessive investment in AI infrastructure and a renewed deterioration in the situation in the Middle East. As a result, the article points out that the market is likely to remain range-bound or, even if it rises, to post only a modest gain.