Summary The S&P 500 slipped 2.95 (0.14 percent) to 2,060.20.
NEW YORK (AFP) - US stocks opened mostly lower Friday after Thursday s big jump on the back of a larger-than-expected stimulus program from the European Central Bank, but the tech sector headed higher.
After gaining 1.5 percent Thursday, 30 minutes into trade the Dow Jones Industrial Average was down 30.15 points (0.17 percent) at 17,783.83.
The S&P 500 slipped 2.95 (0.14 percent) to 2,060.20.
But the tech-heavy Nasdaq Composite pushed higher, adding to Thursday s 1.8 percent gain another 12.41 points (0.26 percent) at 4,762.81.
Thursday s strong rally underscored the support for the ECB s new 60 billion euro ($68 billion) a month quantitative easing program, to hold down interest rates and stimulate growth.
But analysts said they still needed more reform actions from the eurozone governments for it to work.
"There was a lot of back-slapping of ECB President Mario Draghi after he announced a larger than expected, and open-ended, QE program. The jury is out on whether it will achieve the economic ends it is designed to achieve," said Patrick O Hare of Briefing.com.
"We understand the ECB is trying to get things untrenched, but with a lack of pro-growth fiscal and structural reforms in the euro area, the QE program could be LOA -- limp on arrival."
Industrial giant General Electric gained 0.5 percent after posting net income of $5.15 billion for the October-December quarter, a gain of 61 percent from a year ago.
Coffee chain Starbucks surged 5.9 percent after topping analyst forecasts for revenues and analysts in the fourth quarter by 13 percent.
But elsewhere on the fast-food front, global hamburger chain McDonald s was virtually unchanged after a fourth-quarter report that came in under analyst forecasts for net earnings and revenues.
Google and Twitter, subject of rumors of a possible Google-led merger on Thursday that gave both 3 percent-plus gains, edged higher. Google was up 0.8 percent while Twitter added 1.2 percent.
On the Dow, Visa was the top gainer with a 2.2 percent rise, while Caterpillar led in the losing column, down 1.7 percent.
Bond prices rose. The yield on the 10-year US Treasury fell to 1.83 percent from 1.90 percent Thursday, while the 30-year dropped to 2.40 percent from 2.47 percent. Bond prices and yields move inversely
