Western Digital Corporation (NASDAQ: WDC) has seen a 195% stock appreciation in 2025, reaching around $175 per share. Joining the Nasdaq-100 Index on December 22 validates its strategic shift to HDD infrastructure after separating its Flash memory business earlier this year. This move signifies a market rotation towards essential technology hardware.

As part of the Nasdaq-100 Index reconstitution, Western Digital replaces Lululemon, signaling a shift from consumer goods to technology hardware. The Index Effect triggers passive buying from ETFs like Invesco QQQ, forcing them to purchase millions of Western Digital shares. This creates a demand surge independent of the company’s operational news, potentially boosting stock prices.

Western Digital’s inclusion in the Nasdaq-100 reflects its market capitalization growth to approximately $60 billion post-Flash business separation. The company’s focus on HDD infrastructure aligns with the AI Super Cycle, where high-capacity drives are crucial for massive data storage needs. Revenue from cloud customers grew 31% YoY, highlighting the demand for data storage solutions.

In the first fiscal quarter of 2026, Western Digital repurchased $553 million of its own shares, reducing stock supply. This, combined with ETFs’ forced buying, creates a demand-supply imbalance that can drive stock prices higher. The company’s improved gross margin and earnings reflect a strong business model and profitability growth.

Both Western Digital and Seagate Technology are joining the Nasdaq-100 simultaneously, validating the data storage sector’s revaluation. The surge in demand for high-capacity drives in the AI era positions both companies well for profitability and pricing power. The HDD market is expected to remain supply-constrained, offering Western Digital favorable market dynamics.

Analysts see further upside potential for Western Digital, with price targets reaching as high as $250. The company’s commitment to returning cash to shareholders through a dividend increase signals confidence in sustained cash flow generation. With a solid foundation in AI data storage and favorable market dynamics, Western Digital is positioned as a top-tier technology holding for 2026.

Read more at Nasdaq Inc.: Western Digital’s Nasdaq-100 Entry Caps Its AI-Driven Comeback