Japan’s Nikkei share average rose 5.24 percent on Wednesday, marking a sharp market rebound after its worst month since the 2008 financial crisis. Investors welcomed signals from U.S. President Donald Trump that the war with Iran could end in two to three weeks. The Nikkei closed at 53,739.68, while the broader Topix gained 4.95 percent to 3,670.9. This market rebound lifted 221 of the Nikkei’s 225 components.
“There are still uncertainties over the fate of the war, but at least the market is confident that it is moving towards the end,” said Shoichi Arisawa, general manager of the investment research department at IwaiCosmo Securities. “If oil prices stabilize, it would make it easier for local firms to make forecasts for this fiscal year. They are set to start disclosing their outlook from the end of this month.”
Trump and Secretary of State Marco Rubio signaled that Washington was open to direct talks with Tehran’s leadership. They indicated the conflict could wind down even without a formal deal. This market rebound reflects growing investor confidence that the prolonged Middle East tensions may soon ease.
Chip and artificial intelligence-related shares led the rally. Advantest jumped 10.67 percent, while SoftBank Group gained 5.88 percent. Tokyo Electron rose 5.51 percent. Memory chip maker Kioxia soared 14.26 percent, becoming the top percentage gainer on the Nikkei following its addition to the index in a regular reshuffle. All 33 industry sub-indexes on the Tokyo Stock Exchange advanced.
The banking sector surged 8.21 percent, contributing significantly to this market rebound. Mitsubishi UFJ Financial Group rose 8 percent, while Sumitomo Mitsui Financial Group gained 8.97 percent. These gains helped push the Topix higher across the board.
Investors have closely monitored the Middle East conflict for months. The war disrupted oil supplies and created uncertainty for Japanese companies that rely on energy imports. Stabilizing oil prices would allow firms to provide clearer earnings forecasts as they begin disclosing their outlook for the new fiscal year.
KDDI bucked the upward trend, falling 3.32 percent. The phone company announced it had set up an investigation committee over inappropriate transactions by employees at its subsidiary BIGLOBE. The decline stood out against the broader market rebound.
The Nikkei’s March performance had been the worst since the 2008 global financial crisis. The index fell sharply as the Middle East conflict escalated and oil prices spiked. Wednesday’s surge erased much of those losses. The market rebound signals that investors are now pricing in a potential resolution to the conflict.
The timing of this market rebound coincides with the start of Japan’s new fiscal year. Companies will soon release their earnings forecasts, and stable oil prices would remove a major source of uncertainty. Analysts note that the war’s end would also reduce inflationary pressures that have weighed on consumer spending.
Trump’s comments marked a shift in tone from previous US statements about the conflict. The possibility of direct talks with Tehran suggests a diplomatic path forward. Investors responded by rotating back into risk assets that had been sold off during the height of the war.
The chip sector’s strong performance reflects optimism about broader economic stability. Semiconductor stocks have been volatile throughout the conflict due to concerns about supply chains and global demand. Wednesday’s rally in chip shares indicates renewed confidence in the sector’s outlook.
As the new fiscal year begins, Japanese companies will provide guidance for the coming months. A sustained market rebound would help restore confidence among both domestic and international investors. The outcome of potential US-Iran talks will likely determine whether this rally continues. Investors will watch for further diplomatic developments that could solidify the path toward ending the conflict. The coming weeks will test whether this market rebound can hold as companies begin reporting their earnings outlook. If oil prices stabilize, Japanese firms will have greater certainty in their planning. This market rebound therefore represents not just a relief rally but a fundamental reassessment of risk. The next phase will depend on whether diplomatic efforts succeed in bringing the war to a close. Investors have priced in that possibility, but concrete agreements will determine the durability of these gains.
