When a stock gains 3,299% in a year, the question isn’t whether people will take profits. It’s when. For SanDisk and Micron Technology, that moment arrived in late spring, as a broad rotation out of high-momentum semiconductor names sent both stocks sliding by double digits in a matter of days.
The numbers behind the selloff
On May 12, 2026, SanDisk shares fell approximately 9% to around $1,405. Micron dropped about 9% to roughly $724. Western Digital, the third leg of the memory stool, slid about 8% to $476.
SanDisk had racked up a 552% gain year-to-date by mid-May 2026, on top of that staggering 3,299% over the previous 12 months. Micron wasn’t far behind in terms of momentum, eventually pushing to an all-time high of $1,089.29 on June 3-4, 2026.
Then came the real correction. On June 5, Micron cratered 13.3% in a single session, closing at $864.01. SanDisk sank 11.4% on that same day.
