As investors get rolling Monday after the three-day weekend, the Dow Jones Industrial Average and the stand in record territory on the first day of the second quarter, after managing small gains in last week's up-and-down trading.

But 2012 high-flyer Apple—whose 31 percent gain had helped boost the S&P last year—lost 4 percent last week. The iPhone and iPad maker is down nearly 17 percent in 2013.