Micron, SanDisk slip on NAND pricing worries By: MarketWatch March 23, 2012 at 11:14 AM EDT Shares of Micron and SanDisk spearhead Friday’s S&P 500 decliners as analysts cite pricing worries in the NAND memory chip market. Read More >> Related Stocks: Micron Technology SanDisk Corp Standard & Poors 500