On July 30, SK hynix rose 7.22% in regular trading, trading at $137.5/share, with turnover of $1.72 billion. The stock had earlier been down nearly 5% in pre-market before reversing sharply higher.

On the news front, SK Group Chairman Chey Tae-won purchased 3,620 shares of SK hynix on the open market for approximately 4.8 billion Korean won (~$3.34 million), marking his first-ever personal holding in the chipmaker. Previously, Chey had only controlled SK hynix indirectly through SK Square. With the stock having retraced over 50% from its June high, the chairman's move was widely interpreted by the market as a bottom-fishing signal, serving as the core catalyst for the intraday rally.

The broader memory sector also staged a significant rebound, with Sandisk up over 14%, Seagate up nearly 14%, Western Digital up over 11%, and Micron up over 7%, providing additional tailwinds. SK hynix's Q2 results, released the prior day, showed record operating profit of 60.5 trillion won (+557% YoY) and revenue of 79.3 trillion won (+257% YoY), though both missed consensus estimates.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)