U.S. stocks rebound to trim weekly losses By: MarketWatch February 22, 2013 at 10:00 AM EST U.S. stocks start higher on Friday, curbing weekly losses, a day after Hewlett-Packard Co. reported first-quarter revenue that beat projections. Read More >> Related Stocks: Dow Industrials SPDR Hewlett-Packard PowerShares QQQ SPDR S&P 500 ETF Trust