On September 28, Western Digital fell 3.19% in pre-market trading, trading at $442.02/share, with turnover of $6.16 million. The broader storage chip sector came under significant selling pressure during the session.

The decline was driven by rising risk-aversion sentiment ahead of storage chip giant Micron Technology's latest earnings report, scheduled for release after market close on Wednesday. The market views Micron's results as a critical window into the health of the storage chip and AI data center supply chain. Investors chose to lock in profits ahead of the report, triggering broad-based weakness across the sector. Within the Technology Hardware, Storage & Peripherals sector, SanDisk fell 3.96%, Seagate Technology dropped 2.85%, Dell Technologies declined 2.82%, Super Micro Computer slid 2.13%, and Apple edged down 0.16%.

Notably, Japanese and Korean equity markets also closed lower on the same day, with SK Hynix falling over 5% in Seoul and semiconductor-related names such as Kioxia declining in Tokyo, reflecting a broader regional risk-off move in storage and memory names.

(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.)