Japan's Bond Yield Advanced to a Three-Decade High, Yen Drifted Lower

Akira Ito
18 Aug, 2026
Tokyo

Japan's indexes traded down on Tuesday and reversed gains in the previous session following the rise in bond yield to a three-decade high. 

The Nikkei 225 Stock Average decreased 1.8%, the broader TOPIX declined 0.6%, and the yen weakened to 159.67 against the U.S. dollar.  

The yield on a 10-year Japanese government bond advanced to 2.95%, the highest level since 1996, amid mounting fiscal concerns and growing expectations of an imminent Bank of Japan rate hike.  

The yen has been under pressure despite a joint intervention by the U.S. and Japan, as investors worry that the Prime Minister Takaichi's proposed consumption tax cut to 1% on food items for two years is likely to widen the fiscal gap without identifying an alternate revenue source. 

Geopolitical tensions remained high after the U.S. and Iran ended a two-month ceasefire on Monday, and the Brent crude oil price increased 0.7% to $91.49 a barrel.  

The energy product shipment through the Strait of Hormuz is likely to remain disrupted for a prolonged time amid fading hopes for a Middle East peace deal. 

Investors are closely watching the risk of renewed fighting in the Middle East, disruptions to oil supply through the Strait of Hormuz, and their impact on global growth, inflation, and crude oil prices.  

 

Japan Indexes and Stocks 

The Nikkei 225 Stock Average decreased 1.8%, and the broader TOPIX fell 0.6% to 4,157.71. 

Technology and consumer stocks led decliners in Tokyo on Tuesday, following a weakness in overnight trading in New York. 

Tokyo Electron declined 5.5% to ¥56,780.0, Advantest Corp. fell 3.9% to ¥36,310.0, and Lasertec eased 5.6% to ¥37,050.0. 

Fast Retailing Co. declined 1.9% to ¥75,320.0, Aeon Co. decreased 0.9% to ¥1,354.50, and Nintendo Co. increased 0.2% to ¥8,777.0.