Stocks•7 July 2026•
2 min read

Data Storage Stocks Slump Led by Western Digital Amid Broad Profit-Taking

Key Facts

1Western Digital stock fell 7.95% on July 7th driven by institutional profit-taking following Samsung's earnings report.
2Seagate stock declined 4.68% due to sector-wide concerns over future oversupply and hardware margin sustainability.
3Corning shares dropped 4.96% due to profit-taking and executive insider selling despite bullish AI infrastructure outlook.

Amid shifting dynamics in the technology sector, semiconductor and data storage stocks experienced a significant selloff led by Western Digital and Seagate. Western Digital shares fell 7.95% on July 7th, driven by institutional profit-taking following Samsung's latest earnings report, while Seagate declined 4.68% due to sector-wide concerns over future oversupply. Corning shares also dropped 4.96% as a result of executive insider selling and profit-taking, despite a generally bullish outlook for AI-related infrastructure.

This correction follows a period of robust growth in the memory sector; search data indicates that Samsung's preliminary Q2 operating profit surged approximately 15-fold on AI demand, prompting investors to lock in gains in peers amid valuation concerns. Per market data, optical hardware providers like Corning faced additional pressure from insider liquidations, a move often seen when stock prices reach multi-month highs following rapid AI-driven rallies. Analysts suggest that while long-term demand remains, short-term margin sustainability is now under scrutiny.

Regarding current levels, WDC closed at $577.46 and STX at $868.26 (close of July 6, 2026), marking a retreat from recent highs. Traders are now shifting focus to upcoming global macroeconomic catalysts, including consumer confidence data from Japan and inflation reports from the Eurozone, to gauge the broader health of global tech spending and its impact on hardware demand cycles.