On July 30, SK hynix rose 3.23% in after-hours trading, trading at $154.49/share, with turnover of $151 million, extending the strong rebound seen during regular trading hours when the stock surged over 7%.

On the news front, SK Group Chairman Choi Tae-won purchased 3,620 shares of SK hynix on the open market for approximately 4.8 billion Korean won (about $3.34 million), marking the first time he has held shares directly in a personal capacity. Previously, Choi had only controlled the chipmaker indirectly through SK Square. With SK hynix having retreated over 50% from its June highs, the chairman's move to buy at depressed levels was widely interpreted by the market as a bottom-fishing signal, significantly boosting investor sentiment.

The purchase triggered a dramatic intraday reversal, with the stock swinging from a nearly 5% pre-market decline to a 7%-plus gain during regular trading, as the broader memory chip sector staged a sharp rebound alongside the chairman's confidence-affirming action.

(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.)