At midday on Friday, the Dow Jones Industrial Average rose 4.67 points, or 0.02 per cent, to 26,366.92. The S&P 500 decreased 2.09 points, or 0.07 per cent, to 2,922.49. The Nasdaq Composite Index dropped 31.43 points, or 0.39 per cent, to 7,941.96, Xinhua news agency reported.
More than half of the 30 blue-chip stocks in the Dow extended gains around midday, with shares of trade-sensitive Intel up over 1.3 per cent, leading the gainers.
Shares of widely-acknowledged trade barometers Caterpillar and Boeing also rallied nearly 1.2 per cent and over 0.5 per cent respectively. Yet gains of all the three closely-watched shares contracted during the morning sessions.
Six of the 11 primary S&P 500 sectors traded lower around midday, with the consumer discretionary sector down 0.55 per cent, leading the laggards.
Shares of Dell Technologies surged over 7.6 per cent, after the tech giant reported second-quarter earnings that topped market expectations, driven by strong sales of its computer products.
On the economic front, personal consumption expenditures (PCE), a key measure of U.S. household spending, rose 0.6 per cent to 93.1 billion US dollars in July, boosted by spending in recreational goods and vehicle, as well as household electricity and gas, the Bureau of Economic Analysis reported on Friday.
Personal income increased 0.1 per cent to 23.9 billion dollars last month, and disposable personal income went up by 0.3 per cent to 44.4 billion dollars.
"The increase in personal income in July primarily reflected increases in compensation of employees and government social benefits to persons that were partially offset by a decrease in personal interest income," the bureau said in a report.
( With inputs from IANS )