US stocks open mildly higher ahead of report on home sales By: CNBC.com News February 21, 2014 at 09:30 AM EST Stocks rose on Friday, with the S&P 500 on track for a third weekly gain, after better-than-expected results from Hewlett-Packard and others. Read More >> Related Stocks: Amazon.com Groupon Cl A Hewlett-Packard Ralph Lauren Corp Sentinelone Inc Cl A The Priceline Group