On the upside
Alere (NYSE: ALR) and the Food and Drug Administration agreed on product specifications for the company's Triage diagnostic products.
MSCI (NYSE: MSCI) engaged in advanced discussions for a possible acquisition of IPD Group.
On the downside
Xyratex (Nasdaq: XRTX) disappointed with lower third quarter earnings the fell short of analyst expectations and the company warned of losses for the current quarter.
Superior Energy Services (NYSE: SPN) warned of lower third quarter earnings in the aftermath of Hurricane Isaac.
Stifel Nicolaus downgraded Heartland Payment Systems (NYSE: HPY) to a Sell rating.
In the broad market, advancing issues were on par with decliners on the NYSE while decliners edged out advancers by more than 10 to 9 on Nasdaq. The Russell 2000 which tracks small cap stocks eased a point to 838.