AdvertisementAdvertisementBusiness18 Jun 2026 11:05AM (Updated: 18 Jun 2026 11:25AM) Bookmark Bookmark WhatsApp Telegram Facebook Twitter Email LinkedInAdd CNA as a trusted source to help Google better understand and surface our content in search results.Read a summary of this article on FAST.Get bite-sized news via a newcards interface. Give it a try.Click here to return to FAST Tap here to return to FASTFAST SEOUL, June 18 : South Korea's financial market regulator issued on Thursday an investor warning on single-stock leveraged investment products recently introduced amid a world-beating, chipmaker-led rally in the domestic market."With stock market volatility increasing recently, there have been cases where the prices of single-stock leveraged or inverse products fluctuate sharply in the short term," the Financial Supervisory Service (FSS) said in a statement."Therefore, the FSS issues a consumer warning to remind retail investors of risks and to induce careful investment decisions," it said.Last month, stock brokerages received regulatory approval to launch single-stock leveraged investment products linked to Samsung Electronics and SK Hynix, following a surge in the shares of the two chipmakers.The KOSPI has risen 111 per cent so far this year, led by gains of 190 per cent and 300 per cent in Samsung Electronics and SK Hynix, respectively, with the two chipmakers accounting for more than 50 per cent of the benchmark.Source: ReutersNewsletterWeek in ReviewSubscribe to our Chief Editor’s Week in ReviewOur chief editor shares analysis and picks of the week's biggest news every Saturday.Sign up for our newslettersGet our pick of top stories and thought-provoking articles in your inboxSubscribe hereGet the CNA appStay updated with notifications for breaking news and our best storiesDownload hereGet WhatsApp alertsJoin our channel for the top reads for the day on your preferred chat appJoin hereAlso worth readingContent is loading...Expand to read the full storyGet bite-sized news via a newcards interface. Give it a try.Click here to return to FAST Tap here to return to FASTFAST