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Tokyo stocks close at record high, Nikkei surges 3,297 points on Iran peace deal ? second-largest single-day gain ever

Mon Jun 15, 2026 4:04 pm JST Market

Tokyo stocks surged on the 15th as risk appetite grew following a U.S.-Iran agreement to end hostilities, driving the Nikkei 225 to a record high. The single-day gain was the second-largest in the index's history.

The Nikkei 225 ended up 3,297.46 points, or a substantial gain for a third straight session, to finish at 69,317.50. Volume on the Prime Market reached approximately 2,443,080,000 shares, with turnover estimated at 11.46 trillion yen. Advancing issues outnumbered decliners 1,090 to 434, with 40 unchanged.

U.S. President Trump announced early on the 15th Japan time via social media that an agreement had been reached to end hostilities with Iran, with a memorandum of understanding scheduled to be signed on the 19th. Iran's Supreme National Security Council also confirmed the agreement. Futures buying surged to price in the end of hostilities and the reopening of the Strait of Hormuz, while inflows into AI- and semiconductor-related stocks lifted broader indices. Construction and airline shares were also chased on hopes of reduced cost burdens. The Nikkei maintained its gains in the afternoon despite profit-taking, with gainer issues accounting for just under 70% of all issues. The Tokyo Stock Price Index (TOPIX) also hit a record high but fell short of closing above the 4,000 level. With the rally driven primarily by large-caps, the TSE Growth Market 250 Index slid 1.6%.

Among individual stocks, Kioxia Holdings <285A> surged to top the trading value rankings, crossing the 90,000 yen level for the first time. TAIYO YUDEN CO., LTD. <6976>, IBIDEN CO.,LTD. <4062>, and SoftBank Group Corp. <9984> posted sharp gains, while DISCO CORPORATION <6146>, Tokyo Electron Limited <8035>, and ADVANTEST CORPORATION <6857> rallied significantly. IHI Corporation <7013> and TAISEI CORPORATION <1801> also jumped, while Japan Airlines Co., Ltd. <9201> and TOYOTA MOTOR CORPORATION <7203> traded firmly. KITZ CORPORATION <6498> and Torishima Pump Mfg.Co.,Ltd. <6363> attracted buyers, while Murata Manufacturing Co.,Ltd. <6981> and Mitsui High-tec, Inc. <6966> both finished limit-up.

On the downside, JAPAN TOBACCO INC. <2914>, JAPAN POST HOLDINGS Co.,Ltd. <6178>, and NTT, Inc. <9432> struggled, while SECOM CO., LTD. <9735>, INPEX CORPORATION <1605>, and Nippon Yusen Kabushiki Kaisha <9101> drifted lower. CyberAgent,Inc. <4751> and Kura Sushi,Inc. <2695> were sold off, while ASTERIA Corporation <3853> and H.I.S. Co., Ltd. <9603> fell sharply.

Source: MINKABU PRESS

*Translated by generative AI. Click here for the original article.