SanDisk stock tanked after earnings, but here's why this sell-off may not last

SanDisk stock (NASDAQ: SNDK) plunged more than 5% in extended trading on Wednesday, adding to a 5.4% regular-session decline, even though the flash-memory company delivered results that would normally trigger a rally. Adjusted earnings reached $39.25 a share, above Wall Street's $34.96 estimate, while revenue of $8.97 billion beat the $8.48 billion consensus.