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Korean shares plunge on tech saleoff, worst week since March

South Korean stocks plunged on Friday, and are headed for the steepest weekly decline since 'late March. A global retrenchment in technology and the stalled U.S. Iran?peace negotiations?have severely impacted investor risk appetite.

The Korean won fell to its lowest level against the US dollar since 2009. Bond yields also spiked. This prompted government officials, including Finance Minister Koo Yun Cheol, to issue a verbal warning about speculative bets.

Broadcom's disappointing results on Wall Street sent semiconductor stocks tumbling. Investors who bet heavily on the demand for Broadcom's custom AI chips were disappointed. The Philadelphia semiconductor index fell 2.2%.

KOSPI, the benchmark index in Korea, fell 453.32 points or 5.25% to 8,186.09 at?0437 GMT. The index is down 3.46% this week. Samsung Electronics has lost 5.41%, while SK Hynix has fallen?8.27%.

The two chipmakers are rewriting the global equity rankings and have helped lift KOSPI?more? than 200% in the past year.

Investors are both excited and concerned about the risks of a market overheating due to the firms' large influence on the $5,01 trillion stock exchange.

Hyundai Motors and Kia Corp, its sister company, both fell by 3.71% and 3.53% respectively. POSCO Holdings, a steelmaker, fell by 4.23%. Samsung BioLogics, a drugmaker also dropped by 1.48%.

The foreigners sold shares worth 2.912 trillion won. Out of the 923 issues traded, 167 advanced while 738 declined.

Michael Loh, of JPMorgan Chase Bank, wrote in a recent report that funds that were overweight Korean equities at the beginning are now likely to be facing concentration limits. We also understand single stock concentration limits could?also?be a factor? motivating investors to sell.

In non-deliverable futures trading, the won was quoted as 1,543.0 for a dollar, down by 0.7% from yesterday. Its one-month forward contract was also quoted at 1,541.9.

On the money and debt markets, June futures for treasury three-year bonds rose 0.01 points to?102.96.

The benchmark 10-year bond yield increased by 1.3 basis point to 4.242%, while the most liquid 3-year Korean Treasury Bond yield increased by 1.1 basis point to 3.865%. (Reporting and editing by Cynthia Kim, Subhranshu Sahu and Sam Holmes).

(source: Reuters)