Wall St ends mixed

Dow, S&P 500 retreated from record highs, while Nasdaq rose to 13-year high.
Dow Jones Industrial Average fell 46.23 points to close at 15,612.13.
S&P 500 dropped 2.53 points to 1,707.14.
Nasdaq composite rose 3.36 points to end at 3,692.95, new 13-year closing high.
Most key S&P sectors closed lower, dragged by industrials and utilities.