Sandisk stock rose 27% yesterday. Here’s why

Go back to Sandisk stock rose 27% yesterday. Here’s why
SanDisk Corporation (NASDAQ: SNDK) Delayed: 1344.29 +73.24 (5.76%)
Previous Close $1271.05    52 Week High $78.83 
Open $1358.22    52 Week Low $44.28 
Day High $1389.28    P/E 309.74 
Day Low $1308.53    EPS $4.34 
Volume 12,634,225       

Western Digital (NASDAQ: WDC) Delayed: 454.10 +16.17 (3.69%)
Previous Close $437.93    52 Week High $64.80 
Open $457.07    52 Week Low $34.99 
Day High $467.80    P/E 103.91 
Day Low $450.88    EPS $4.37 
Volume 5,747,559