Shares of Western Digital Corporation (NASDAQ:WDC) declined approximately 4% on Wednesday, retreating from recent highs as the market paused to assess the sustainability of a multi-week rally fueled by artificial intelligence (AI) storage demand. The stock opened near $658, according to Google Finance, but slid during the session as trading volume remained above its recent average.
The pullback comes less than two weeks after Western Digital shares surged to the top of the S&P 500, driven by analyst upgrades and optimism that hard-disk drive (HDD) supply cannot keep pace with rising demand from cloud providers expanding AI data centers. Despite the dip, the stock remains well ahead of many tech peers over the past year.
Investors are now turning their attention to Micron Technology (NASDAQ:MU), whose upcoming earnings report is widely viewed as a bellwether for enterprise storage spending and AI infrastructure budgets. Storage stocks broadly lost ground ahead of Micron's results, reflecting caution about how much upside is already priced into the sector.
Analysts continue to highlight a structural supply shortfall in the HDD market. Morgan Stanley analyst Erik Woodring estimates that HDD demand is growing at 40% to 50% annually, while supply expands at only 30% to 35%. This gap could sustain pricing power through 2027, supporting a favorable outlook for Western Digital and its rival Seagate Technology Holdings (NASDAQ:STX).
Morgan Stanley recently raised its price target for Western Digital to $650, maintaining an overweight rating. Other firms including JPMorgan, Mizuho, and Bank of America have also boosted their targets, reflecting confidence in the company's ability to capitalize on the AI-driven storage cycle.
Western Digital CEO Irving Tan provided rare visibility into the company's pipeline during the fiscal second-quarter earnings call earlier this year. Tan stated that the company is “pretty much sold out for calendar 2026” and has secured long-term agreements covering parts of 2027 and 2028 demand. This marks a departure from earlier storage cycles, where suppliers often faced uncertainty beyond a few quarters.
Hyperscale cloud operators are now locking in storage needs earlier as AI applications require large, persistent data sets in addition to graphics processing units (GPUs). This shift has transformed HDD manufacturers from traditional PC hardware plays into AI infrastructure bets, with investors rotating between Western Digital and Seagate shares on different trading days.
Western Digital shares surged more than 16% on June 15 after Morgan Stanley’s upgrade, a sharp move that has left some market participants questioning how much pricing power is already reflected in the stock. The broader storage sector remains volatile, but analysts see further upside if data-center buildouts continue to accelerate.
