The markets closed flat with the Dow slipping 7 points to 15,392 as earnings disappointed. Nasdaq added 5 points to 3920.

On the upside

Shares of Astrotech (Nasdaq: ASTC) continued rising after a Seeking Alpha contributor wrote last week that the stock was undervalued.

The Wall Street Journal reported that RadioShack (NYSE: RSH) received an $835 million loan from GE Capital.

Celanese (NYSE: CE) reported higher third quarter earnings that topped analyst estimates.

On the downside

The Rosen Law Firm launched an investigation into potential securities fraud committed by Catalyst Pharmaceutical Partners (Nasdaq: CPRX). 

Osiris Therapeutics (Nasdaq: OSIR) reached an agreement with the Food and Drug Administration regarding the regulatory status of its wound treatment Grafix.

Celldex Therapeutics (NYSE: CLDX) will present trial data at upcoming meetings for the Society for Immunotherapy of Cancer and the Society of Neuro-Oncology.

In the broad market, declining issues outpaced advancers by a margin of nearly 10 to 9 on both the NYSE and on Nasdaq. The broader S&P 500 held steady at 1744.