Superconductor Mania Triggers Korea Exchange Warning
- Korea Exchange asks for caution on some stocks after surges
- Superconductor theme substance ‘not clear’: Kiwoom Securities
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Investors continued to pile into some Korean stocks seen as related to superconductors amid claims about a breakthrough in the technology, even as the exchange warned of speculative bets and unfair trades.
Small caps including Duksung Co. and Sunam Co. jumped by as much as their 30% daily limits for a third-straight day. Sunam has skyrocketed about 260% in the past six sessions while Duksung is up 170%. Mobiis Co. also soared by as much as 30% Thursday, while Shinsung Delta Tech Co. briefly climbed 21% to a record high before erasing its advance.