Sandisk (SNDK) and Western Digital (WDC), two of the biggest beneficiaries of the AI storage boom, were both 10% lower in pre-market trading Thursday, despite reporting strong quarterly results.
Sandisk posted record fourth-quarter revenue of $8.97 billion and non-GAAP EPS of $39.25, comfortably beating expectations. Western Digital also delivered a double beat, reporting revenue of $3.75 billion, up 44% year over year, while its gross margin surged to 54.4%. Despite those results, both stocks are now trading roughly 50% below their all-time highs.
The problem was guidance. Sandisk’s first-quarter outlook came in below expectations, with projected revenue of $10.7 billion versus the $11.2 billion analysts had estimated. Its EPS guidance also fell short. Western Digital’s first-quarter outlook was solid, but after a 500% run, investors were looking for another blowout beat.
Sandisk and Western Digital have gained more than 3,000%…