A slowdown in worker productivity weighed down the markets to a lower close with the Dow dropping 65 points to 12,200. Nasdaq plunged 31 points to 2279.

On the upside

First quarter earnings for Multi-Fineline Electronix (Nasdaq: MFLX) surged to beat expectations as sales climbed and margins improved.

A gain from a joint venture helped Monaco Coach (NYSE: MNC) swing to a fourth quarter profit and surpass expectations.

Penson Worldwide (Nasdaq: PNSN) reported higher fourth quarter earnings that beat expectations as revenue soared.

On the downside

Although CommVault Systems (Nasdaq: CVLT) reported higher third quarter earnings, the company trimmed its full year forecast.

While fourth quarter earnings for RadiSys (Nasdaq: RSYS) beat expectations, the company forecast disappointing first quarter results.

National Financial Partners (NYSE: NFP) warned that fourth quarter results will fall far short of estimates.

In the broad market, declining issues outpaced advancers by a margin of more than 5 to 3 on both the NYSE and on Nasdaq. The Russell 2000 which tracks small cap stocks tumbled 9 points to 692.