Wall St ends unchanged

U.S. stocks closed mostly unchanged in sluggish trading overnight, with the S&P 500 managing small gain to end at another record high, amid some discouraging technology sector earnings.
Dow Jones Industrial Average fell 4.80 points, to close at 15,543.74. S&P 500 added 2.72 points at 1,692.09, for a new high closing, but Nasdaq composite fell 23.67 points at 3,587.61.

For the week, energy led the key S&P sector gainers, while technology shares lagged.