The markets opened mixed with the Dow slipping a point to 17,976 while Nasdaq rose 11 points to 5,082 as Iran reached a nuclear deal.

On the upside

Tsinghua Unigroup is preparing to make a bid for Micron Technology (Nasdaq: MU).

Biocept (Nasdaq: BIOC) launched its proprietary, quantitative assay targeting BRAF mutations.
 
Transgenomic (Nasdaq: TBIO) launched its Transgenomic Leukodystrophy NGS Panel.
 
On the downside

Tonix Pharmaceuticals (Nasdaq: TNXP) priced its public offering of 2.325 million at the discounted price of $7.50 per share.

Spirit Airlines (Nasdaq: SAVE) cut its full year guidance.

Profit taking weighed down shares of Ohr Pharmaceutical (Nasdaq: OHRP).

In the broad market, declining issues outpaced advancers by a margin of nearly 10 to 9 on the NYSE while advancers edged out decliners by more than 10 to 9 on Nasdaq. The broader S&P 500 edged up a point to 2100. Bitcoin slipped $1 to $287.