Microsoft slips, but Apple lifts tech stocks By: MarketWatch September 13, 2012 at 10:41 AM EDT Shares of Microsoft slip after Citigroup reaffirms a grim view of the Windows 8 launch, but Apple gains after the iPhone 5 launch. Read More >> Related Stocks: Apple Facebook Google, Inc. Hewlett-Packard Intel Corp International Business Machines Marvell Technology Inc Micron Technology PHLX Semiconductor Sector Index