According to Bloomberg, investors continue to buy Korean stocks related to superconductors and chip makers amid claims about a breakthrough in the technology. The shares of such Korean tech companies as Duksung Co Ltd and Sunam Co Ltd surged by a daily record of 30% each. Sunam has skyrocketed by 260% in the past six days while Duksung has jumped by 170%. Mobiis Co stock also showed a similar dynamic, soaring by 30%. Shinsung Delta Tech briefly rose by 21% to reach a record high but failed to settle there. Earlier, Korean Exchange asked investors to be cautious when dealing with Duksung, Mobiis, and Shinsung Delta Tech shares. However, the exchange operator did not halt trading as according to the rules, it should issue several warnings before making a one-day trading suspension. The bourse is supposed to warn investors against speculative bets and unfair trade. Yet, despite all the warnings, traders were still attracted to tech stocks. Notably, stocks linked to superconductor technologies rallied sharply following a report about synthesizing LK-99, a superconductive material capable of carrying electricity at room temperatures and ambient pressure.