Chip giant SK Hynix Inc. suffered its second short-lived share plunge in about a week, raising fresh questions about trading volatility on South Korea's alternative stock exchange. The 30% pre-market flash crash on Nextrade marks another episode of extreme price dislocation for the memory-chip leader, following a similar event just days earlier.

These repeated incidents highlight structural concerns around liquidity and market mechanics on the country's secondary bourse. Unlike the main Korea Exchange, Nextrade operates with different rules and lower volumes, potentially amplifying sudden sell-offs. Traders and analysts are scrutinizing whether algorithmic trading, thin order books, or regulatory gaps are driving the volatility.

Bloomberg Markets reports that the latest plunge was brief but sharp, with shares recovering much of the loss within minutes. However, the recurrence undermines confidence in price discovery for one of the world's largest semiconductor makers. Regulators may face pressure to review Nextrade's safeguards, especially as retail participation grows. For SK Hynix, the episodes add unwanted noise to a stock closely tied to global AI and memory-demand cycles.