U.S. Stocks Open Lower as Volatile August Comes to an End

U.S. stocks opened lower on Monday as investors look to put August's volatility to an end. The NASDAQ appears set to have its worst month since May 2012. Oil fell below $49 a barel after its biggest two day rally in six years last week. Oil fell back down on a supply glut and renewed concern about China's economy. Intel (INTC) was upgraded by Northland Capital Management on what they said looks like an improving outlook for PCs. United Airlines (UAL) plans to change the way it schedules flights and to use new technology to tackle the delays and cancellations that have hurt its competitiveness. Twitter (TWTR) received some positive news. The social-networking company was upgraded at Suntrust Robinson Humphrey, which cited a series of potential positive catalysts and a 'washed out' valuation. A new report by CLSA banking analyst Mike Mayo is warning against the possible consequences of a 'yes' vote at a September 22nd Bank of America (BAC) meeting that would result in the combination of the Chairman and CEO roles. TheStreet's Jane King reports from the Nasdaq Marketsite in New York.