US Federal Reserve policy makers began their two-day meeting, during which they are not expected to increase interest rates but might offer clues about plans to reduce their balance sheet.
"Any major policy announcement is more likely when Chair Janet Yellen faces the press following the September meeting," J&E Davy analyst David McNamara wrote in a note, Bloomberg reported. "For now the Fed remain on track for a couple more rate hikes at least this year, with most members believing the recent softness in inflation to be temporary."
In the Dow, rallies in shares of Caterpillar and those of McDonald's, recently up 5.8 per cent and 5.2 per cent respectively, outweighed slides in shares of 3M and those of United Technologies, recently down 5.6 per cent and 2.1 per cent respectively.
Shares of Caterpillar rallied after the maker of heavy equipment reported quarterly earnings that bettered expectations and upgraded its full-year sales and profit outlook.
"As a result of increased demand across many end markets and disciplined cost control, Caterpillar is raising its 2017 outlook," the company said in a statement. "Some risks remain in the outlook, including weakness in the Middle East and Latin America, as well as geopolitical and commodity risk."
The company said it is raising its full-year 2017 expectations for sales and revenues to a range of US$42 billion to US$44b with a midpoint of US$43b, up from its April forecast for US$38 billion to US$41b with a midpoint of US$39.5b.
It now expects full-year profit per share of about US$3.50 at the midpoint of the sales and revenues outlook range, or adjusted profit per share of about US$5.00, it said. That's up from a previous guidance for about US$2.10 per share at the midpoint of the sales and revenues outlook, or adjusted profit per share of about US$3.75.
"Right now, it's kind of risk on," Brad McMillan, chief investment officer for Commonwealth Financial in Waltham, Massachusetts, told Reuters.
"We've seen earnings come, in aggregate, well above what was expected. So basically the corporate fundamentals are ratifying what the market has been saying all along," McMillan said.
Shares of DuPont, which is set to merge with Dow Chemical, gained after the company posted better-than-expected quarterly earnings bolstered by seeds and pesticides revenue.
In the second quarter, agriculture sales increased 5 per cent on a 5-per cent benefit from volume and a 1-per cent benefit from local price, partially offset by a 1-per cent negative impact from portfolio, DuPont said in a statement. Agriculture revenue accounts for about half of the company's total.
"Volume growth was driven by a benefit from the timing of seed deliveries, including the route-to-market change in the southern US, increased insecticide and fungicide sales, higher soybean sales in North America, and increased sunflower and corn seed sales in Europe," the company said. "This growth was partially offset by the expected decline in corn volume related to reduced corn area in North America."
Shares of DuPont traded 1.2 per cent higher as of 3.28pm in New York.
In Europe, the Stoxx 600 Index ended the session with an advance of 0.4 per cent from the previous close. Germany's DAX Index rose 0.5 per cent, while France's CAC 40 Index added 0.7 per cent, and the UK's FTSE 100 Index gained 0.8 per cent.