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Japan Market May 20, 2026 at 4:00 PM

Nikkei Falls 0.7% as SoftBank Tumbles Amid Iran War Concerns

The Nikkei 225 declined 0.69% to ¥37,922 on Wednesday as geopolitical tensions surrounding Iran weighed on risk sentiment, with technology stocks leading the retreat while financial shares bucked the broader downtrend.

The USD/JPY pair held steady around ¥159.03, maintaining pressure on the yen near multi-decade lows. The weak yen provided limited support for major exporters, with Toyota Motor still declining 1.01% to ¥29,304 despite the favorable exchange rate backdrop.

Wednesday’s session was dominated by conflicting signals from the Iran conflict, with oil prices initially spiking on war concerns before retreating after reports that President Trump indicated the US would end the Iran war “very quickly.” This volatility rippled through global markets, with Indian shares dropping and European markets showing mixed reactions as EV sales surged due to higher petrol prices.

SoftBank Group led the day’s decliners, plummeting 4.64% to ¥2,727 as technology stocks faced renewed pressure amid the uncertain geopolitical landscape. Industrial robotics giant Fanuc also suffered, falling 4.53% to ¥3,805, reflecting broader concerns about global manufacturing demand amid the Middle East tensions.

In contrast, Japan’s major financial institutions emerged as the session’s standout performers. Mizuho Financial Group surged 3.58% to ¥1,373, while Sumitomo Mitsui Financial gained 2.14% and Mitsubishi UFJ Financial added 1.35%. The banking sector’s strength likely reflected expectations that prolonged geopolitical uncertainty could support higher interest rates globally, potentially benefiting net interest margins.

Nintendo provided a bright spot among technology names, advancing 2.62% to ¥1,855, as gaming stocks continued to attract defensive flows from investors seeking stable revenue streams during volatile periods. Kyocera also gained 1.81%, supported by its diversified industrial portfolio.

Looking ahead to monetary policy, the Bank of Japan’s next meeting on April 28 remains in focus, with markets expecting Governor Ueda to maintain the current accommodative stance amid ongoing US-China trade tensions. Any dovish signals could further pressure the yen, while unexpected hawkish commentary might provide some relief to the currency’s recent weakness.

Wednesday’s mixed performance highlighted the ongoing tug-of-war between geopolitical risks and Japan’s structural advantages from yen weakness. While the Iran situation adds near-term uncertainty, the resilience of financial stocks suggests investors remain cautiously optimistic about Japan’s economic fundamentals, particularly as NISA investment flows continue supporting domestic equity demand.

This article is for informational purposes only and does not constitute investment advice. Please consult with a qualified financial advisor before making investment decisions.