Market Updates
Japan's Indexes Extended Weekly Losses to 10% as U.S.-Iran Conflict Drags On
Akira Ito
04 Mar, 2026
Tokyo
Japan's indexes declined for the third day in a row as the surge in oil prices dampened market sentiment across Asia.
The Nikkei 225 Stock Average fell nearly 4%, the broader Topix dropped 3.6%, and the yen weakened to 157.45 against the U.S. dollar.
Investors are increasingly factoring in the possibility of a prolonged U.S.-Iran conflict expanding to the wider group of nations in the Middle East.
Investors worried that the higher energy prices could stoke worldwide inflation and slow down economic growth and disrupt energy supplies for a prolonged time.
Japan Indexes and Stocks
The Nikkei 225 Stock Average dropped 3.7% to 54,220.74, and the broader Topix decreased 3.6% to 3,637.59.
Benchmark indexes extended this week's losses to over 10% following the start of war in the Middle East.
Nippon Yusen KK decreased 3.5% to ¥5,376.0, Mitsui O.S.K Lines dropped 2.8% to ¥5,887.0, and Kawasaki Kisen Kaisha Ltd fell 2.4% to ¥2,508.0.
Toyota Motor, Honda Motor, and Nissan Motor fell between 4% and 7%, and Hitachi, Komatsu, and Nippon Steel declined between 4% and 6%.
Tokyo Electron, Advantest Corp., and SoftBank Group plunged between 5% and 9%.
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