The markets closed mixed with the Dow falling 35 points to 13,982 while Nasdaq gained 10 points to 3196 after January retail sales edged up a mere 0.1%.

On the upside

Vonage Holdings (NYSE: VG) reported lower fourth quarter earnings but the results beat expectations.

Fourth quarter earnings surged for Proto Labs (NYSE: PRLB) to surpass analyst expectations on record revenue.

Pioneer Energy Services (NYSE: PES) reported lower fourth quarter earnings but the results were better than expected.

On the downside

Polycom (Nasdaq: PLCM) president of products and services Sudhakar Ramakrishna will leave the company on March 15.

Wedge Partners analyst Brian Blair does not expect strong sales of the BlackBerry (Nasdaq: BBRY) Z10.

Hospira (NYSE: HSP) reversed year ago losses to post a profit for the fourth quarter but the company forecast 2013 earnings and revenue below expectations.

In the broad market, advancing issues outpaced decliners by a margin of more than 7 to 5 on the NYSE and by nearly 5 to 4 on Nasdaq. The broader S&P 500 index edged up a point to 1520.