Take a look at some of Tuesday's midday movers:
Homebuilders, including Toll Brothers, Lennar, DR Horton, Pulte and Hovnanian, rose as October housing starts rose to their highest rate in four years.
Mosaic gained ground on a rumor that it has hired JP Morgan to explore strategic alternatives due to foreign interest in the company.
Cooper Tire & Rubber fell on reports Apollo Tyres has "put on hold" its plans to acquire the company.
Schiff Nutrition fell after Bayer decided not to top Reckitt Benckiser's $1.4 billion, $42 a share bid for the vitamin maker.
Medtronic rose on signs its key heart and spine markets were improving. Its second-quarter earnings matched analysts expectations.
Shoe Carnival slumped after the footwear retailer predicted current quarter earnings below Street forecasts.
Sturm Ruger moved higher after the firearm's maker unveiled a special dividend of $4.50 a share.
Patterson Companies moved lower after the medical supply company's second-quarter earnings fell 7 percent on slowing sales growth. It also lowered its full-year earnings estimate.
(Read More: See CNBC's Market Insider Blog)
—By CNBC's Rich Fisherman.
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A truckload of data will hit markets, but it's the jobs report Friday when Wall Street is closed that will be the most important.
Next week's March employment data could be crucial to setting the course of the dollar for months to come.
Names on the move ahead of the open.
Fed Chair Janet Yellen speaks just before the close Friday, and you can bet Wall Street will delay the start of its weekend to listen.
Patti Domm is CNBC Executive Editor, News, responsible for news coverage of the markets and economy.
A CNBC reporter since 1990, Bob Pisani covers Wall Street from the floor of the New York Stock Exchange.
CNBC's Senior Personal Finance Correspondent
JeeYeon Park is a writer for CNBC.com. Follow her on Twitter: @JeeYeonParkCNBC
Rick Santelli joined CNBC Business News as an on-air editor in 1999, reporting live from the floor of the Chicago Board of Trade.
Senior Producer at CNBC's Breaking News Desk.