Equities on both sides of the Atlantic gained as Alcoa's better-than-expected second-quarter earnings bolstered optimism that corporate America will report solid results and outlooks.
In late afternoon trading in New York, the Dow Jones Industrial Average added 0.57 per cent, the Standard & Poor's 500 Index gained 0.78 per cent, while the Nasdaq Composite Index climbed 0.62 per cent.
Aluminium producer Alcoa was the first Dow member to report second-quarter earnings after the close of the market yesterday. While it beat expectations, shares were last 0.25 per cent lower.
The company stuck with its forecast for 7 per cent growth in global aluminium demand in 2013.
"It looks much better than expected. It is good to see that revenue is better than expected," Alan Lancz, president of Alan B Lancz & Associates, an investment advisory firm based in Toledo, Ohio, told Reuters. "It seems like the outlook is favourable so far."