On the upside
The lockup period expired for Yelp (NYSE: YELP).
A British supplier completed its stocking orders to MAKO Surgical (Nasdaq: MAKO).
On the downside
ArQule's (Nasdaq: ARQL) Japanese development partner halted clinical trials of its lung cancer treatment citing safety concerns. Barclays Equity Research slashed its price target on Baidu (Nasdaq: BIDU) to $153 from $189.
Pacific Crest lowered its estimates for First Solar (Nasdaq: FSLR).
In the broad market, advancing issues outpaced decliners by a margin of nearly 2 to 1 on the NYSE and by more than 5 to 3 on Nasdaq. The Russell 2000 which tracks small cap stocks climbed 5 points to 819.