The markets retreated to close lower with the Dow losing 22 points to 15,082 despite a drop in jobless claims to a five year low. Nasdaq slipped 4 points to 3409.

On the upside

Boston Scientific (NYSE: BSX) reported positive results from a four-year follow-up to a clinical trial of its Watchman Left Atrial Appendage Closure device.

First quarter earnings and revenue slipped for Thompson Creek Metals (NYSE: TC) but revenue beat expectations.

Orbitz Worldwide (Nasdaq: OWW) swung to a profit for the first quarter as revenue rose.

On the downside

Willbros Group (NYSE: WG) narrowed losses for the first quarter but the results missed analyst expectations.

Quantum (NYSE: QTM) widened fourth quarter losses more than expected as revenue fell.

First quarter earnings more than doubled for Cooper Tire & Rubber (Nasdaq: CTB) but revenue dropped to fall far short of expectations.

In the broad market, declining issues outpaced advancers by a margin of more than 5 to 3 on the NYSE and by more than 3 to 2 on Nasdaq. The broader S&P 500 index fell 6 points to 1626.