The swift sell-off in shares of Western Digital $WDC is reversing. The stock rose 7.55% last week, helped by a slight bounce in Micron $MU and despite Applied Materials $AMAT falling.The buying thesis on $WDC at a PT $105 is simple: world demand for storage will continue growing. The refresh for PC, notebook, smartphones, and smart devices all require more data storage. Flash storage is especially profitable. So, at a 7.5x P/E and 6.3x forward P/E, WDC has plenty of upside to the 8x - 12x multiples. STX, Seagate, a competitor: $STX, Seagate Technology Holdings PLC / H1 $WDC, Western Digital Corporation / H1 $105 is just a start. $120+ is possible but let's aim for a $105 PT first.Related: $STX Seagate is expensive compared to WDC.Agree or disagree? Login now to vote. Join the group of Value Stocks. With ~830 members. Comment below.