Western Digital (WDC) Stock Drops 13% as the AI Storage Rally Cools Fast

TLDR

• WDC dropped as much as 13% on June 26, hitting a session low of $611.53
• Fox Advisors downgraded the stock from Outperform to Equal-Weight on June 22, citing HDD pricing concerns
• Western Digital completed a SanDisk share exchange and retired $858.4M in convertible notes, creating share overhang and equity dilution
• Insiders sold 125 times in six months with zero purchases, including CEO Irving Tan selling ~40,000 shares across 26 transactions
• The stock had rallied over 54% in the prior month, leaving valuations stretched at a forward P/E of 40x–45x

Western Digital (WDC) dropped as much as 13% on June 26, hitting a session low of $611.53, as several pressures hit the stock at once.

Western Digital Corporation, WDC

The selling started building after Fox Advisors downgraded WDC from Outperform to Equal-Weight on June 22. The firm’s concern: expectations for hard disk drive pricing may have gotten too far ahead of actual likely increases.

That downgrade continued to weigh on the stock through the rest of the trading week.

At the same time, two corporate transactions closed that added fresh supply to the market. Western Digital finalized an exchange of over one million SanDisk shares for WDC common stock, creating near-term share overhang and triggering arbitrage-driven hedging activity.

The company also retired $858.4 million of its 3.00% Convertible Senior Notes due 2028, swapping them for cash and roughly 21.3 million new common shares. That dilution pushed down near-term EPS expectations.

Insider Selling Adds to the Pressure

On the insider front, WDC insiders made 125 stock sales in the past six months and zero purchases. CEO Irving Tan was among the sellers, offloading approximately 40,000 shares across 26 separate transactions.

That pattern of one-way insider activity added to negative sentiment around the stock.

The broader memory and storage sector also turned lower. A proposed AI-related windfall tax by a South Korean policymaker rattled global tech investors, sending South Korean benchmark indices sharply lower and dragging memory and semiconductor names with them.

From Rally Highs to Rapid Reversal

WDC had surged more than 54% in the month prior to this decline, fueled by enthusiasm around AI storage demand and a broader memory rally sparked by Micron’s strong earnings on June 25. Those gains are now being partially unwound.

The stock’s forward P/E had stretched to 40x–45x during that run — a rich multiple that left little room for error. Profit-taking accelerated once the downgrade, dilution news, and sector headwinds hit together.

Despite the drop, WDC still carries 21 buy ratings, 3 hold ratings, and 1 sell rating from analysts. Year-to-date price performance remains up 292.35%, and the stock’s market cap stands at $232.8 billion.

The Nasdaq slipped 0.2% and the S&P 500 traded essentially flat on the same day, meaning the broader market offered no cushion for WDC’s decline.

Average daily trading volume sits at 8.1 million shares. Technical sentiment signals remain on a buy reading as of the latest data.

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