Japanese shares fell sharply on Monday, January 26, 2026, as worries about the yen’s stability spread through the market. The Nikkei 225 dropped 1.9% to 52,849.21, and the broader TOPIX index lost 2.1% to 3,555.09.
Financial and technology stocks led the decline. Investors had been reacting to expectations of a joint intervention by Tokyo and Washington to support the yen, a move that could strengthen the currency and weigh on exporters.
How intervention expectations move the market
A stronger yen reduces the yen value of overseas profits that exporters bring home, so intervention talk often hits the same stocks that benefited from the earlier weak-yen rally. For domestic investors, the episode shows how closely Tokyo equities now track currency policy.
Readers can compare this episode with later moves in our Markets section, and find background on currency policy in Trade and Currency.
Source: Ticker Market Updates, Tokyo, 26 January 2026.
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