Take a look at some of Thursday's midday movers:
Google broke below its 50-day moving average as competition continues to heat up in the mobile search market.
Facebook shares were up slightly ahead of its media event to unveil the company's "New Home on Android."
Huntsman jumped on an upgrade from Monness, Crespit, Hardt to "buy" From "neutral," with a price target of $25 per share.
CenturyLink was upgraded to "overweight" from "neutral" at JPMorgan following a meeting with the telecom's management.
MetroPCS Communications got a lift from improvements in contract customer losses at T-Mobile USA. Deutsche Telekom's T-Mobile and MetroPCS have an agreement to merge that is subject to shareholder approval on April 12.
(Read More: See CNBC's Market Insider Blog)
—By CNBC's Lori Spechler
Questions? Comments? Email us at firstname.lastname@example.org