KOSPI and KOSDAQ surge together, triggering buy-sidecars; Samsung Electronics 7%↑
10The KOSPI and KOSDAQ surged, triggering buy-sidecars in succession. Samsung Electronics 7% higher, while the top 1% of investors were found to have concentrated their buying on SK hynix. Japan’s semiconductor equipment and materials ETF has risen 1% in 105 years.
2026-07-10 trading saw the KOSPI and KOSDAQ surge, leading to successive buy-sidecar activations. The measure temporarily restricted program trading in the relevant markets.
The KOSPI index rose 5%, while the KOSDAQ index rose 6%. The surge in the indices automatically activated in-market trading rules.
Samsung Electronics surged 7% on the day, leading gains among the largest companies by market capitalization. By sector, semiconductor-related stocks were broadly strong.
In the trend among top traders, the top 1% of investors were found to have concentrated their purchases on SK hynix. These purchases were confirmed in the execution patterns for each stock.
A buy-side sidecar is an exchange mechanism that limits buy orders in program trading for a certain period when specified conditions are met. This activation was an automatic application triggered by a sharp rise in the index.
Meanwhile, an ETF related to semiconductor materials, components and equipment in Japan recorded a 1year return of 105% . Investment flows related to semiconductors appeared to be expanding beyond the region.
Among securities firms, a phase was observed in which the upward trend in target prices continued for some time before partially pausing, while outlooks for large-cap semiconductor stocks diverged by institution.
All figures are based on intraday tallies as of . Investors should check the execution price at the time trading resumes and the company's disclosures.2026-07-10 Please verify the execution price at the time trading resumes and the company's disclosures.