Sandisk stock rose 27% yesterday. Here’s why

Go back to Sandisk stock rose 27% yesterday. Here’s why
SanDisk Corporation (NASDAQ: SNDK) Delayed: 1792.80 +151.69 (9.24%)
Previous Close $1641.11    52 Week High $78.83 
Open $1700.75    52 Week Low $44.28 
Day High $1827.99    P/E 413.09 
Day Low $1698.00    EPS $4.34 
Volume 13,971,474       

Western Digital (NASDAQ: WDC) Delayed: 529.37 +20.57 (4.04%)
Previous Close $508.80    52 Week High $64.80 
Open $525.53    52 Week Low $34.99 
Day High $548.60    P/E 121.14 
Day Low $519.07    EPS $4.37 
Volume 6,005,927