On September 14, SK hynix declined 5.28% overnight, trading at 180.19 USD/share, with turnover of approximately 8.26 million USD. The stock fell alongside a broad selloff across the semiconductor sector, with peers Micron Technology and SanDisk also dropping over 4% in after-hours trading.

On the news front, multiple headwinds converged. Persistent macro-level concerns continued to weigh on the chip sector. In the options market, institutional funds have placed consecutive large-scale bearish bets in recent sessions, including a 4.31 million USD bear call spread and a 10.6 million USD dual call-selling structure, both signaling expectations of limited upside. On the competitive front, ChangXin Memory reported a Q2 EBIT margin of 82%, surpassing SK hynix, Samsung, and Micron, with aggressive capacity expansion plans targeting 60,000 wafers per month, raising concerns over a structural shift in the global DRAM landscape. Additionally, SK hynix's labor union is scheduled to hold a revote on a previously rejected wage agreement on September 15-16, adding near-term uncertainty.

Within the Semiconductors sector, major names also traded lower: Micron Technology down 3.83%, Intel down 3.72%, Advanced Micro Devices down 2.54%, Broadcom down 1.59%, and NVIDIA down 1.56%.

(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.)