 "S&P, Nasdaq up as banks and techs gain; IBM dents Dow")
Gains in financial and technology stocks kept the S&P 500 and the Nasdaq firmly positive on Wednesday, while a slump in IBM held back the Dow.
The advance in financials was underpinned by a 2.6 per cent jump in shares of Morgan Stanley, which reported a surge in quarterly profit. Shares of other big US banks rose in tandem.
Morgan Stanley's solid results provided some succor to investors stung by weak results at chief rival Goldman Sachs a day earlier.
IBM sank nearly six per cent to $16.06 after the company reported a bigger-than-expected decline in revenue for the first time in five quarters. The stock was the biggest drag on the Dow and the S&P.
"It's really a battle between geopolitical headlines and earnings right now, and for the most part earnings seem to be winning in the short term," said Jeff Zipper, managing director of investments at the Private Client Reserve of US Bank in Palm Beach Florida.
Mounting tension between North Korea and the United States and political uncertainty in Europe ahead of the French presidential elections had kept safe-havens such as gold and US Treasuries in demand in the past weeks.
At 11:01 am ET (1501 GMT), the Dow Jones Industrial Average was down 23.46 points, or 0.11 per cent, at 20,499.82, the S&P 500 was up 6.27 points, or 0.27 per cent, at 2,348.46 and the Nasdaq Composite was up 35.50 points, or 0.61 per cent, at 5,884.97.
With Wall Street near record levels and worries over President Donald Trump's ability to carry out his pro-growth promises, investors are hoping first-quarter earnings will be strong enough to justify pricey market valuations.
So far, the results have been promising. Of the 45 S&P 500 companies that have released results, nearly 76 per cent have topped earnings estimates, according to Thomson Reuters.
Overall profits of S&P 500 companies are estimated to have risen 10.7 percent in the quarter - the best since 2011.
Eight of the 11 major S&P 500 sectors were higher.
Utilities, real estate and consumer staples, which have outperformed the broader index since Monday, were down.
Facebook was up 1.3 per cent and provided the biggest boost to the S&P and the Nasdaq.
Intuitive Surgical was up 7.3 per cent at $814.49 after the company reported higher-than-expected first-quarter revenue and profit.
American Express, eBay and Qualcomm are scheduled to report results after the market closes.
In economic data, the Federal Reserve's Beige Book, which will give a glimpse into economic conditions across the United States, is due at 2:00 pm ET (1800 GMT).
Advancing issues outnumbered decliners on the NYSE by 1,753 to 997. On the Nasdaq, 1,838 issues rose and 766 fell.
The S&P 500 index showed 19 52-week highs and one low, while the Nasdaq recorded 53 highs and 22 lows.
