TOKYO — SoftBank Group Corp. shares surged more than 12% in early Monday trading after news of a U.S.-Iran ceasefire agreement that is expected to reopen the Strait of Hormuz and ease geopolitical tensions.
The Japanese technology investment firm led gains among Asian tech stocks as investors welcomed the potential for improved global market stability and energy supply flows following the announcement late Sunday.
SoftBank shares rose sharply on the Tokyo Stock Exchange, outpacing other major names such as Tokyo Electron and Advantest, which also posted strong gains.
The rally came after U.S. President Donald Trump announced the completion of a deal with Iran. "The Deal with the Islamic Republic of Iran is now complete," Trump wrote on Truth Social. "I hereby fully authorize the toll free opening of the Strait of Hormuz, and, simultaneously herewith, authorize the immediate removal of the United States Naval blockade."
The agreement follows months of conflict in the region that had disrupted shipping and contributed to volatility in energy and financial markets. Details of the full ceasefire framework, including implementation timelines and provisions related to Iran's nuclear activities, remain unclear.
SoftBank, known for its large investments in technology companies through its Vision Fund and stakes in firms such as Arm Holdings, has significant exposure to global risk sentiment. Market participants cited reduced uncertainty over energy costs and supply chains as a positive factor for growth-oriented tech investments.
Iranian officials have confirmed elements of the agreement, though full terms were not immediately available. Pakistani mediators helped facilitate recent talks, with a formal signing anticipated in the coming days.
U.S. stock futures also rose overnight, while oil prices declined on expectations of resumed flows through the strategic waterway. No immediate reaction was available from Israeli officials regarding the deal's implications.
Trading volume was elevated as Asian markets reacted to the weekend developments. SoftBank's gains helped lift the broader Nikkei 225 index.
The company has not issued a statement on the market move. Further details on the ceasefire's durability and its longer-term effects on global trade are expected to emerge in the coming days as negotiations continue.
