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Japan Market May 18, 2026 at 4:00 PM

Nikkei Falls 1.1% as Mideast Tensions Weigh on Tokyo Markets

The Nikkei 225 declined 1.08% to close at 91.07 on Monday as escalating Middle East tensions and geopolitical uncertainty weighed on investor sentiment across Tokyo markets. The broader TOPIX index fell 0.72% to 170.58, reflecting widespread selling pressure despite pockets of strength in select sectors.

The Japanese yen weakened modestly against the dollar, with USD/JPY rising 0.26% to ¥172.86, providing some support for export-oriented stocks. However, the currency’s movement was overshadowed by broader risk-off sentiment stemming from ongoing tensions in the Middle East, including drone attacks on UAE nuclear facilities and continued US-Iran diplomatic stalemate.

Monday’s session was dominated by concerns over the economic impact of prolonged Middle East conflicts, with Reuters reporting that Iranian war-related disruptions have already cost global companies an estimated $25 billion. These geopolitical headwinds contributed to a broader Asian market selloff, with Indian shares also joining the regional decline as investors sought safer havens.

Despite the overall market weakness, several notable stocks bucked the trend. Nintendo (NTDOY) surged 3.24% to ¥11.16, leading the gainers as gaming stocks found favor amid the uncertain environment. Industrial automation leader Fanuc (FANUY) climbed 3.02% to ¥26.29, while Honda Motor (HMC) advanced 1.99% to ¥26.18, benefiting from the weaker yen’s positive impact on automotive exporters. Mitsubishi UFJ Financial (MUFG) rose 1.95% to ¥18.84, with banking stocks showing resilience despite broader market concerns.

On the downside, SoftBank Group (SFTBY) led decliners with a 3.73% drop to ¥17.80, as technology conglomerates faced pressure from risk aversion. Mizuho Financial (MFG) fell 1.92% to ¥8.69, while industrial components maker Kyocera (KYOCY) declined 1.28% to ¥18.46. The mixed performance in financial stocks reflected uncertainty about the sector’s exposure to global economic disruption.

Oil prices touched two-week highs following the drone attacks, adding to inflationary concerns that could complicate the Bank of Japan’s monetary policy outlook. With energy costs rising and geopolitical risks mounting, investors are closely watching for any signals from the BOJ regarding potential policy adjustments in response to external pressures.

Monday’s session highlighted the ongoing challenge facing Japanese markets as they navigate between domestic economic recovery and external geopolitical shocks. While the weaker yen continues to provide some support for exporters, the broader risk-off environment suggests investors remain cautious about taking on additional exposure until Middle East tensions show signs of de-escalation.

This article is for informational purposes only and does not constitute investment advice. Past performance does not guarantee future results. Investors should conduct their own research and consult with financial advisors before making investment decisions.