US stocks edge lower after three days of gains

The S&P 500 is 4 points lower to 1858. The index gained 46 points in the prior three sessions this week.

Futures had indicated gains following solid earnings and jobless claims but I think worries about Ukraine ahead of the long weekend are the catalyst. But first, the Philly Fed is out at the top of the hour — the consensus is for a rise to +10 from +9.

The S&P 500 is up 11 points, or 0.6%, year-to-date.