Trading on South Korea’s Tech-Heavy Kosdaq Suspended After Stocks Slide

A security guard walks below a monitor at the Korea Stock Exchange in Seoul.

Photographer: SeongJoon Cho/Bloomberg

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South Korea’s Kosdaq index of mainly small-cap technology stocks slumped on Monday, triggering the first trading suspension in more than three years, as investors sold on rising trade tensions with Japan.

The gauge, comprising 1,336 stocks of the nation’s small- and medium-sized companies, slid more than 5% before the Korea Exchange haltedBloomberg Terminal program trading for five minutes. The index recently dropped 7.1%. The index has slipped nearly 15% this year, the worst-performing index in Asian major markets.