Key Highlights

  • Western Digital (NASDAQ:WDC) traded at USD 376.65 on October 13, 2026, down 2.66% on 9.341 million shares (1.2 times the 3-month average), valued at USD 147.225 billion, with a P/E of 16.93 and a PEG of -0.35.
  • UBS cut its target to USD 470 from USD 525 and kept Neutral on October 12, 2026, and the stock also traded with memory names on reports of a Chinese memory chip breakthrough.
  • The shares are in a bear market, about 53% below the 52-week high of USD 799.87, after reports of Toshiba expansion and a bidding contest for TDK's magnetic heads business hit hard drive stocks in early October.
  • A P/E of 16.93 with a negative PEG of -0.35 is not a clean valuation signal, with fiscal first quarter results due on October 22, 2026.

Catalyst and Latest Updates

Western Digital (NASDAQ:WDC) fell USD 10.29 to USD 376.65 on 9.341 million shares, about 1.2 times its 3-month average of 7.65 million. The likeliest drivers are the UBS target cut on October 12 and the memory selloff linked to the Chinese chip reports, though neither is proven as the cause. Earlier in the month hard drive stocks fell on reports of Toshiba expanding capacity and a bidding contest for TDK's magnetic heads business, and the shares dropped about 11.9% on one day around October 3. Analysts at Citi, Bernstein, Morgan Stanley and Goldman Sachs argued the selloff was overdone. On October 7 the company announced fiscal first quarter results for October 22. Citi, Bernstein, Morgan Stanley and Goldman Sachs publicly argued that the selloff had been excessive.

What the Valuation Figures Mean

Western Digital makes hard disk drives that store the data behind cloud and AI services. Trailing revenue is about USD 12.92 billion, up 35.7%, and net income about USD 9.29 billion, up about 399%, per published data, so the earnings growth filter passes. A P/E of 16.93 means about USD 16.93 is paid for each USD 1 of past-year earnings, but net income of USD 9.29 billion on USD 12.92 billion of revenue suggests large non-recurring gains, so the ratio flatters the stock. The PEG of -0.35 is negative, so the growth input is not usable. The ratio is a trailing figure, so a fall in earnings would raise the multiple quickly.

Risks and What to Watch

Competition from Toshiba, pricing, customer concentration among cloud buyers and the cyclical nature of storage are the main risks. The stock is about 53% below its 52-week high and about 235% above its low of USD 112.52, simple arithmetic on published figures, which shows how violent the swings have been. The published consensus is Buy from 26 analysts with an average target near USD 668.50, which is not our forecast and sits well above the UBS target. Results on October 22, 2026 will show whether demand and pricing hold. Customer concentration among large cloud buyers and capacity decisions by rivals also affect pricing. Pricing power in storage can also reverse quickly.

Where Things Stand

The answer is that a target cut and a memory sector selloff are the likeliest drivers of the 2.66% decline, though neither is confirmed as the cause. Western Digital (NASDAQ:WDC) trades on a P/E of 16.93 that is flattered by large earnings gains, in a bear market 53% below its high. Results on October 22, 2026 are the next test. Published targets were mixed, with UBS cutting while the average stayed far higher.