Micron and Sandisk led a tech selloff on Tuesday, falling more than 13%; Western Digital fell 8%, Marvell 9%, Seagate 5%, Qualcomm 8%, and Applied Materials 8% (Britney Nguyen/MarketWatch)

Britney Nguyen / MarketWatch: Micron and Sandisk led a tech selloff on Tuesday, falling more than 13%; Western Digital fell 8%, Marvell 9%, Seagate 5%, Qualcomm 8%, and Applied Materials 8% — One analyst says investors are merely taking a ‘breather’ from buzzy tech stocks, following sharp year-to-date gains and ahead …