Memory Stocks Plunge as Western Digital and SanDisk Lead Sector Selloff

Key Facts

Amid escalating concerns over the semiconductor landscape, memory and storage stocks faced a significant selloff that dragged down major industry players. Western Digital shares plummeted 16% to $437 during Thursday's session following the release of its Q4 earnings and future guidance. This downturn triggered a broader retreat across the sector, as investors reacted to the negative sentiment surrounding storage demand and profitability.

The impact was widespread among industry peers according to market data, with SanDisk shares falling 11% and Micron dropping 6%. Per pre-fetched data, WDC closed at $519.17 on August 5, 2026, while SNDK and MU stood at $1350.5 and $893.19 respectively on the same date. The sharp divergence from these levels highlights the intensity of the sector-wide re-rating following the earnings announcement.

Traders are now monitoring key levels after WDC hit a day low of $518.28 and MU touched $881.2 as of the August 5, 2026 close. With no major technology-specific catalysts in the immediate upcoming economic calendar, the focus remains on whether these price actions will stabilize or if further downward pressure will persist as the market digests the revised sector outlook.