Take a look at some of Friday's midday movers:
Groupon hit a record low as Evercore Partners downgraded the stock to "underweight" from "equalweight."
Facebook hit fresh lows as its insider share lockup expired on Thursday.
Apple hit an all-time high as Jefferies raised its price target to $900 from $800 a share.
Ann moved higher after the parent of Ann Taylor Stores reported better-than-expected quarterly earnings.
Caterpillar rose after the company said sales increased by 14 percent over the past three months.
McKesson lost ground after Morgan Stanley downgraded the stock to "equalweight," citing fewer new exclusive generic drugs.
Krispy Kreme gained ground after Wedbush began coverage with an "outperform" rating and a $9 price target. It said it sees international earnings more than doubling within five years.
Vivus moved lower after Jefferies downgraded the stock to "underperform" from "hold," citing generic competition.
Francesca’s hit a new high as Janney initiated coverage on the boutique retailer with a "buy" rating and $38 price target.
Molycorp hit a new low as the rare earth miner was downgraded by Dahlman Rose to "hold" from "buy," citing concerns about the company’s Mountain Pass project being completed on schedule.
Car-Mart plunged after its first-quarter profit fell 2 percent and the used-car seller set aside more money for credit losses.
—By CNBC's Rich Fisherman.
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