Western Digital Rebounds 7.7% as Analysts Push Back on Toshiba Supply Fears

Western Digital shares jumped 7.7% after Bernstein and Morgan Stanley dismissed Toshiba capacity fears, citing sold-out 2026 output and AI storage demand.

A brutal two-day stretch for Western Digital shareholders gave way to a sharp recovery on Monday, with the stock climbing 7.7% to EUR 396.50 as Wall Street's top research desks lined up to dismiss fears of an impending hard-drive supply glut.

The whipsaw followed a Friday selloff that saw the storage maker's shares tumble 11% in European trading to close at EUR 368.10. The trigger: reports that rival Toshiba plans to pour roughly JPY 60 billion into new production lines in the Philippines, aiming to double its manufacturing capacity by fiscal 2027.

Bernstein: A Storm in a Teacup

Bernstein was bluntest in its response, calling the selloff a "storm in a teacup" and reaffirming its Outperform rating on Western Digital. The firm ran the numbers on what Toshiba's expansion could realistically achieve and concluded the market had overreacted.

Even under an aggressive scenario in which Toshiba doubles its shipments while Western Digital and Seagate each raise volumes by a quarter, Bernstein's modeling shows the Japanese manufacturer's global share would rise only from 11.2% to 16.8%. Western Digital and Seagate, meanwhile, would still control more than 80% of worldwide deliveries by storage capacity.

Morgan Stanley echoed that view, arguing the supply-demand deficit will remain wider than any additional volume Toshiba's Philippine investment can generate through calendar 2028. Ramping up production of this kind takes years, the analysts noted, and cannot close the gap left by unquenched demand for AI-driven data storage.

Mizuho analyst Jordan Klein offered a further reason for calm: any extra competitor capacity would not hand customers greater leverage in long-term supply negotiations until 2028 at the earliest. An immediate market disruption, he suggested, is not on the cards.

Sold Out Through 2026, Contracted Into 2029

The operational picture underpinning those bullish calls is unusually tight. Western Digital is sold out for the current year through the end of 2026, and has already committed the bulk of its planned calendar 2027 capacity through long-term supply agreements. Some of those contracts stretch as far out as 2028 and 2029.

That forward-selling of production volumes locks in a substantial slice of future revenue and blunts the risk of near-term displacement — a structural cushion that analysts argue the Friday selloff failed to price in.

Hedge Funds Pile In as Alphabet Fuels Demand

Institutional investors appear to share the optimistic read. By the end of the second quarter, 98 hedge funds held positions in Western Digital, up from 83 in the prior quarter, with the combined value of those stakes reaching roughly USD 9.94 billion.

Fresh demand tailwinds are arriving from the cloud giants. Alphabet recently opened its AI-powered video generation tool to all users, a move expected to multiply the volume of data created worldwide. With AI data centers absorbing existing stockpiles of hard drives and flash memory, enterprises are increasingly locking in long-term agreements to guard against shortages.

Morgan Stanley's price target of USD 650 reflects that conviction, with the bank projecting a massive increase in earnings per share for the sector's major players through 2028 under an optimistic scenario.

Despite Friday's setback, Western Digital shares remain up 139% year to date. Long-term supply contracts are giving storage manufacturers planning certainty, while the industry's capacity limits continue to call the tune.