Seagate Technology is trading at $634.30, down 5.02%, as investors weigh whether record results and exceptional margins can last.

  • It reported record fiscal Q1 results and a stronger-than-expected Q2 outlook.
  • Coverage cited concern about future hard-drive supply, including Toshiba’s planned capacity expansion; an analyst said the outlook implies slower gross-margin growth.
  • Major U.S. indexes were modestly positive, so broad-market weakness does not explain the decline; shares had gained 3.67% at the October 27 close.