SK Hynix shares drop sharply in Seoul on Monday following a strong debut on the Nasdaq last week, with multiple outlets reporting declines of more than 10% and some figures topping 15% for the day. The selloff is widely attributed to profit-taking after the company’s American Depositary Receipts (ADRs) perform well in the United States, as investors lock in gains once trading settles after the listing.

Several reports also point to a shift in sentiment around near-term earnings. Concerns about second-quarter performance and whether expectations for memory demand—particularly from high-bandwidth memory (HBM) products—will be met appear to weigh on the stock. While some commentary references expectations for shipment growth related to HBM4, outlets note that such acceleration has not clearly shown up at scale.

One outlet adds broader market context, saying the Seoul decline coincides with weakness in the Kospi index and that SK Hynix’s market capitalization drops below a stated threshold. Overall, the coverage aligns that the post-debut pullback is driven by both routine post-listing profit-taking and uncertainty about upcoming results.