Take a look at some of Monday's midday movers:
Oilfield stocks popped including Weatherford International, Dover and Dresser Rand. The sector moved higher after GE announced that it would acquire competitor Lufkin Industries for $3.3 billion or, about a 38 percent premium to Friday's closing price.
MSCI REIT Index hit a new 5-year high for the third consecutive session. In that index, Simon Property Group hit a 52-week high with a yield of about 2.77 percent, among the lowest yields in the group.
Whole Foods Market hit a 52-week low and traded down about 10 percent year to date.
Google continued to trend lower. Shares of the search giant broke below its 50-day moving average on Friday, first time since it traded through that average to the upside in December, 2012 according to Richard Ross, Auerbach Grayson Senior Technical Analyst.
And Alcoa was little changed ahead of its quarterly earnings report after the closing bell.
—By CNBC's Lori Spechler
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