SK Hynix quarterly results drive rebound in memory chip stocks

SK Hynix reported third-quarter revenue of 104.62 trillion won, marking a 328% year-over-year increase and surpassing analyst estimates of 98.34 trillion won. The surge in performance, coupled with an operating profit of 83.33 trillion won, prompted the company to announce plans for 100 trillion won in shareholder returns this year.

The results provided a significant boost to the broader semiconductor sector. Samsung Electronics, a key rival, saw its shares close up 9.01%, while the KOSPI index recorded a 6.63% daily gain. In the United States, Micron Technology and Sandisk experienced upward movement in premarket trading as investor sentiment improved.

Memory chip manufacturers have faced recent volatility following a period of record highs during the summer. The industry continues to rely on elevated demand driven by global AI infrastructure development, which has created ongoing supply constraints.