The major US stock indices have closed at record highs, helped partly by technology stocks, which surpassed a long-standing mark despite gains on the Dow being capped by a sharp drop in IBM shares.
The major US stock indices have closed at record highs, helped partly by technology stocks, which surpassed a long-standing mark despite gains on the Dow being capped by a sharp drop in IBM shares.
The S&P 500 tech sector on Wednesday broke its previous record closing high that had held since March 2000 in the midst of the dotcom and Y2K tech stocks bubble.
It has been the best-performing sector this year with a 22.8 per cent advance.
Vertex jumped as much as 26.4 per cent to a record high of $US167, a day after it reported positive results for its cystic fibrosis treatment.
The stock ended up 20.8 per cent at $US159.69, and was the biggest boost on the S&P and the Nasdaq.
IBM was a drag on the Dow industrials after its quarterly revenue came in below expectations and the stock fell 4.2 per cent to $US147.53, having hit a 13-month low of $US146.71.
The Atlanta Federal Reserve raised its second-quarter GDP estimate by one-tenth of a percentage point to a 2.5 per cent annualised rate after data showed US home-building surged to a four-month high in June.
The economy grew at a 1.4 per cent pace in the first quarter.
"Markets are focused on fundamentals, and earnings and the economy are underpinning equities," said Quincy Krosby, chief market strategist at Prudential Financial in Newark, New Jersey.
The Dow Jones Industrial Average rose 66.02 points, or 0.31 per cent, to 21,640.75, the S&P 500 gained 13.22 points, or 0.54 per cent, to 2,473.83 and the Nasdaq Composite added 40.74 points, or 0.64 per cent, to 6,385.04.
The Dow, S&P, Nasdaq and the small-cap Russell 2000 indexes set record closing highs.
Analysts estimate an 8.7 per cent rise in second-quarter earnings and a 4.6 per cent increase in revenue for the S&P 500 companies from a year earlier, according to Thomson Reuters I/B/E/S.
Morgan Stanley rose 3.3 per cent to $US46.62 after the Wall Street bank reported better-than-expected profit and bond trading revenue declines that were modest compared with arch-rival Goldman Sachs.
The KBW bank index fell 0.4 per cent.
CSX fell 5.1 per cent to $US51.87 after the railroad operator's forecast missed expectations and it dragged stocks of its peers lower.
Union Pacific fell 1.3 per cent, while Kansas City Southern dropped 0.6 per cent.
The transport sector was also hit by declines in airlines as United Continental Holdings fell 5.9 per cent to $US74.24, a day after it forecast "disappointing" passenger unit revenue for the third quarter.
Advancing issues outnumbered declining ones on the NYSE by a 2.95-to-1 ratio.
On Nasdaq, a 2.04-to-1 ratio favoured advancers.
About 5.78 billion shares changed hands on US exchanges compared with the 6.41 billion daily average over the past 20 sessions.
