The markets traded higher during the midday with the Dow climbing 90 points to 12,505 as mortgage rates dropped again to a new record low. Nasdaq rose 6 points to 2851.

On the upside

CACI International (NYSE: CACI) forecast 2013 earnings well above analyst expectations.

The Paragon Report expects increasing natural vehicle sales to lift shares of natural gas engine company Westport Innovations (Nasdaq: WPRT).

Celsion (Nasdaq: CLSN) and the University of Oxford will jointly conduct a clinical trial of Celsion's ThermoDox in combination with ultrasound-guided High Intensity Focused Ultrasound to treat metastatic liver cancer.

On the downside

First quarter earnings rose for Titan Machinary (Nasdaq: TITN) but the results fell short of analyst expectations.

Men's Wearhouse (NYSE: MW) disappointed with lower first quarter earnings that missed estimates and the company forecast second quarter results below expectations.

Retreating gold prices weighed down shares of Barrick Gold (NYSE: ABX) and Kinross Gold (NYSE: KGC).

In the broad market, advancing issues outpaced decliners by a margin of nearly 7 to 3 on the NYSE and by more than 7 to 5 on Nasdaq. The Russell 2000 which tracks small cap stocks rose 3 points to 768.