KEY POINTS
  • Adobe's guidance for its fiscal first quarter badly missed analysts' estimates.
  • The stock plummeted 10%, its second-worst day in the past decade.
  • It's the third time in December that Adobe shares have plunged, putting the stock on pace for its steepest monthly drop since June 2010.
Adobe CEO Shantanu Narayen

Adobe shares plummeted 10% on Thursday after the software maker issued a revenue forecast for the fiscal first quarter that fell well shy of analysts' estimates.

The stock suffered its second-worst drop in the past decade, surpassed only by a 15% slide in mid-March of last year, when coronavirus panic rattled the markets. Adobe's three worst days of the year have come in December, pushing the stock down 16% for the month and putting it on pace for its steepest monthly decline since June 2010.